Process Engineering Solutions Product Catalogue Industrial Heavy Duty Pressure Gauge Digital Gauge Sealed Diaphragm Pressure Gauge Temperature Gauges Industrial Capsule Pressure Gauge Thermowell Differential Pressure Gauge Accessories www.vikalo.in
BMTG -Bimetallic Temperature Gauge The temperature is measured with a bimetal system inside the thermometer stem. The bimetal system consists of two metal strips bonded together that have different thermal expansion coefficients. Therefore, one strip will expand faster than the other causing the bimetal strip to curl in proportion to its temperature. The bimetal system is helically wound and heat treated for long term stability. Temperature variations cause the bimetal strip to unwind or wind together, which in turn rotates the pointer Reference Standard : ASME B40.00 (B40.3 GRADE A)/ IS3/EN-390/IEC-6059 Sensing Element : Bimetallic Helix (Coiled Type) Dial Size : 50/63/00/50 mm Scale Range : -80 To 0 C (as per customer requirement) Mounting : Bottom Entry/Back Entry/Every Angle Entry/Back entry panel mounted/bottom entry surface mounted Process Connection : /8, /4, 3/8, /, 3/4, NPT or BSP thread Connection Type : Adjustable comp. Fitting or fixed welded connection Stem Diameter : 6/8/0/ mm Stem Length : As per customer requirement Gauge Accuracy : +/- % FS (Class as per EN-390) Over Range Protection : 0% FS Case & Bezel : AISI SS-304/AISI SS-36, with Bayonet Bezel Stem : AISI SS-36 Protection Window : Plain glass/toughened glass/safety glass Zero Reset : Zero adjustment pointer (Internal) Dial : Aluminium, black marking on white back ground, Protection Class : Weatherproof IP-/IP-67/IP-68 (as per IP Standard IP-6059) ü Rapid response, high repeatability, low hystersis ü Simple & Rugged stainless steel construction ü Gauge accuracy : +/- % FS ü Hermitically sealed case ü External zero adjustment pointer screwed ü Single scale C/Dual scale C - F ü Over range protection : 30% FS/50% FS/00% FS ü Glycerine filled or silicon oil filled ü Temperature gauge with thermowell ü Other process connection available (M8x.5, M0x.5, M7x, M33x etc)
GFTG -Gas Filled Temperature Gauge A gas expansion thermometer is made of a cylindrical bulb filled with inert gas & uses the volume expansion of gases at temperature changes. Gas pressure changes inside the bulb due to temperature changes, are sensed by a special helical bourdon tube, which connected to an amplifying device will give the pointer, movement proportional to the temperature. The physical properties used will enable linear readings on the dial from the origin to full scale. When the reading is remote from the sensing point, a capillary is then used for transmission between the bulb and the thermometer head. Capillary armoring is common practice in industrial environments. Reference standard : SAMA CLASS-III/EN-390/IEC-6059 Sensing element : Inert gas filled in steel bulb Inert filled gas : Nitrogen(N gas) Dial size : 63/80/00/50 mm Scale range : -80 to 800 C(as per customer requirement) Mounting : Bottom entry/back entry/every angle entry/back entry panel mounting/bottom entry surface mounting/bracket mounting Process connection : /8,/4,3/8,/,3/4, NPT or BSP thread Connection type : Adujstable comp. Fitting or fixed welded connection Stem/bulb diameter : 6/8/0//4/6 mm Stem length : As per customer requirement Gauge accuracy : +/- % FS. (Class as per EN-390) Over range protection : 0% FS Case & bezel : AISI SS304/AISI SS36, with bayonet bezel Stem/bulb material : AISI SS-36/AISI SS-30 Movment : AISI SS-304 Bourdon tube : AISI SS-36 Protection window : Plain glass/toughened glass/safety glass Zero reset : Zero adjustment micrometer pointer(internal) Dial : Aluminium, Black marking on white back ground Protection class : Weatherproof IP-/IP-67/IP-68 (as per IP standard IEC-6059) CAPILLARY DETAILS ü Capillary length : Provide upto 5 meter capillary ü Capillary steel : SS capillary with SS-304 armoured ü Capillary PVC : Steel capillary with PVC covered, ü Capillary diameter : 6 mm/8 mm ELECTRIC CONTACT ü Electric contact model : Transparent hood or without hood type ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact rating : 380V AC, Amp max, 30W ü Fast response, easy compensation, linear scale ü Rugged stainless steel construction ü Rigid stem or capillary type ü Gauge accuracy : +/- % FS (class as per EN-390) ü Zero reset micrometer pointer ü Single scale C/Dual scale C / F ü Over range protection : 30% FS/50% FS ü Glycerine filled or silicon oil filled ü Temperature gauge with thermowell ü Temperature gauge with extension capillary ü Other process connection available (M8x.5, M0x.5, M7x, M33x etc)
MFTG -Mercury Filled Temperature Gauge A mercury filled thermometer is made of a cylindrical bulb filled with mercury & uses the volume expansion of gases at temperature changes. Mercury with gas pressure changes inside the bulb due to temperature changes, are sensed by a special helical bourdon tube, which, connected to an amplifying device will give the pointer, movement proportional to the temperature. The physical properties used will enable linear readings on the dial from the origin to full scale. When the reading is remote from the sensing point, a capillary is then used for transmission between the bulb and the thermometer head. Capillary armoring is common practice in industrial environments. Reference standard : SAMA CLASS-V/EN-390/IEC-6059 Sensing element : Mercury filled in steel bulb Inert filled liquid : Mercury (HG) Dial size : 63/80/00/50 mm Scale range : -80 to 0 C (as per customer requirement) Mounting : Bottom entry/back entry/every angle entry/back entry panel mounting/bottom entry surface mounting/bracket mounting, Process connection : /8,/4,3/8,/,3/4, NPT or BSP thread Connection type : Adujstable comp. Fitting or fixed welded connection Stem/bulb diameter : 6/8/0//4/6 mm Stem length : As per customer requirement Gauge accuracy : +/- % FS (class as per EN-390) Over range protection : 0% FS Case & bezel : AISI SS304/AISI SS36, with bayonet bezel Stem/bulb material : AISI SS-36/AISI SS-30 Movment : AISI SS-304 Bourdon tube : AISI SS-36 Protection window : Plain glass/toughened glass/safety glass Zero reset : Zero adjustment micrometer pointer(internal) Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-/IP-67/IP-68 (as per IP standard IEC-6059) CAPILLARY DETAILS ü Capillary length : Provide upto 5 meter capillary ü Capillary steel : SS capillary with SS-304 armoured ü Capillary PVC : Steel capillary with PVC covered ü Capillary diameter : 6 mm/8 mm ELECTRIC CONTACT ü Electric contact model : Transparent hood or without hood type ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact rating : 380V AC, Amp max, 30W ü Rapid response, easy compensation, linear scale ü Rugged stainless steel construction ü Rigid stem or capillary type ü Gauge accuracy : +/- % FS (class as per EN-390) ü Zero reset micrometer pointer ü Single scale C/Dual scale C- ü Over range protection : 30% FS/50% FS ü Glycerine filled or silicon oil filled ü Temperature gauge with thermowell ü Temperature gauge with extension capillary ü Other process connection available (M8x.5, M0x.5, M7x, M33x etc) 3
DGTG -Digital Temperature Gauge They are battery operated / main operated local / remote mounter, accurate, stable, long lasting, low cost, reliale and user friendly instruments. "DGTG can replace the conventional mercury-in-steel, vapor pressure / bimetallic temperature gauges. These are a ideal blend the reliability and ruggedness of the conventional type dial thermometers and the accuracy and simplicity of digital temperature indicators. The most important plus point of the DGTG is that they can be easily calibrated, repaired by changing the stems / capillaries / displays units etc. Unlike the conventional field system dial thermometers, which as good as dead when they leak / fail. Sensing element : RTD / Thermocouple Dial size : 00 mm or 4 Digital range : As per customer requirement Built in RTD : 400 C(PT00) Built in thermocouple : C( J Type) Built in thermocouple : 00 C( K Type) Mounting : Direct bottom entry Process connection : /8, /4, 3/8, /, 3/4, NPT or BSP Thread adjustable fitting Stem diameter : 6 mm/8 mm Stem length : Upto 300 mm Gauge accuracy : +/- 0.5 % FS Case & bezel : AISI SS-304/AISI SS-36, with bayonet bezel Stem : AISI SS-36 Resolution : C Bettery life : year in power saving mode ü High accuracy +/- 0.5 % FS ü Capillary type available 4
PGB -Commercial/Utility Pressure Gauge Bourdon tube measuring element is made of a thin-walled c-shape tube or spirally wound helical or coiled tube. When pressure is applied to the measuring system through the pressure port (socket), the pressure causes the bourdon tube to straighten itself, thus causing the tip to move. The motion of the tip is transmitted via the link to the movement which converts the linear motion of the bourdon tube to a rotational motion that in turn causes the pointer to indicate the measured pressure. Reference standard : EN-837-, IS 364 Scale range :.6 kg/cm.700 kg/cm, compound range, vaccum range Dial size : 40/50/63/80/00/50/00/50 mm Mounting : Bottom entry/back entry/panel mounting/surface mounting, Process connection : /8, /4, 3/8, /, 3/4, NPT or BSP thread Connection type : Fixed welded connection Gauge accuracy : +/-.6% FS or +/- % FS Case & bezel : Drawn steel black powder coated (push fit design) Movement : Brass Socket : Brass Bourdon tube : Brass (low pressure)/ss-36 (high pressure) Protection window : Plain glass Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-(as per IEC-6059) ü Simple design and easy construction, ü Gauge accuracy : +/-.6 %FS ü Over range protection : 30% FS ü Available scale range in unit : BAR or PSI ü Gauge use for ammonia service 5
PGB - Industrial Heavy Duty Pressure Gauge Bourdon tube measuring element is made of a thin-walled c-shape tube or spirally wound helical or coiled tube. When pressure is applied to the measuring system through the pressure port (socket), the pressure causes the bourdon tube to straighten itself, thus causing the tip to move. The motion of the tip is transmitted via the link to the movement which converts the linear motion of the bourdon tube to a rotational motion that in turn causes the pointer to indicate the measured pressure. Reference standard : EN-837-/IS 364/IEC-6059 Ambient temperature : -0 to 80 C Opreating pressure limit : Max 75% of full scale value Scale range : kg/cm.3500 kg/cm, compound range, vaccum range Dial size : 40/50/63/00/50/00/50 mm Mounting : Bottom entry/back entry/panel mounting/surface mounting/bracket mounting Process connection : /8, /4, 3/8, / NPT or BSP thread Connection type : Fixed welded connection Gauge accuracy : +/- % FS Over range protection : 30% FS Case & bezel : AISI SS-304/AISI SS-36, Snap action bayonet type bezel Movement : AISI SS-304 Bourdon tube : AISI SS-36 Socket : AISI SS-304/AISI SS-36 Protection window : Plain glass/toughened glass/acrylic glass/safety glass Pointer : Zero adjustment micrometer pointer (internal) Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-/IP-67/IP-68 (as per IEC-6059) Pressure relief : Neoprene rubber disk on top & back side of the case ELECTRIC CONTACT ü Electric contact model : Transparent hood or without hood type ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact rating : 380V AC, Amp max, 30W ü Industrial heavy duty construction ü Gauge accuracy : +/- % FS ü Over range protection : 30% FS/50 % FS ü Available scale range in unit : BAR, PSI, MPA, KPA ü Dual scale dial design ü External zero adjustment knob ü MRP(follower) pointer ü Gauge use for, oxygen, freon, ammonia service ü Glycerine filled or silicon oil filled ü Economical gauge available on request ü Other process connection available(m8x.5, M0x.5, M7x, M33x etc) 6
PGB3 - Sealed Diaphragm Pressure Gauge A diaphragm seal is device in which flexible membrane (diaphragm)seals and isolate the measuring instrument from the process medium. Diaphragm seal protects the pressure sensor from the harmful and hazardous effect of the process fluid. Where diaphragm seal is essential? l Corrosive process fluid l Process fluid having sediments or solid particles l Hazardous process fluid l Freeze or crystallize at lower temp. l Highly viscous process fluid DIAPHRAGM GAUGE MODEL ü Sandwich type (Threaded or flange connection) ü Flush diaphragm sealed (Flange connection only) ü Sandwich type flange connection (With I section) ü Extended type diaphragm seal ü Remote entry FLANGE CONNECTION ü Process connection : /,,.5, 3/4, Flange connection ü Pressure rating : ANSI B6.5 50#RF/300#RF/#RF ü Flange material : AISI SS-304/AISI SS-36/HASTELLOY-C ü Coating : PTFE coating on diaphragm & flange ü Flange with extension I section available TRI-CLOVER CONNECTION ü Process Connection : ",.5", ",.5" Tri-clover Connection ü Process Connection : Male Thread(Sms) ü Process Connection : ",.5"," Tri-clamp Design(Sanitary Seal) CAPILLARY DETAILS ü Capillary length : upto 5 meters SS36 capillary with SS304 armoured ü Capillary diameter : 6 mm/8 mm ELECTRIC CONTACT ü Electric contact model : Transparent hood ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact rating : 380V AC, Amp max, 30W 7
PGB3 - Sealed Diaphragm Pressure Gauge Reference standard : EN-837-/IS 364/IEC-6059 Ambient temperature : -40 to 300 C Opreating pressure limit : Max 75% of full scale value Scale range : kg/cm.50 kg/cm, compound range, vaccum Dial size : 63/00/50 mm Mounting : Bottom entry/back entry/panel mounting/surface mounting/remote entry Process connection : /8, /4, 3/8,/, 3/4, NPT or BSP thread Gauge accuracy : +/- % FS Over range protection : 30% FS Case & bezel : AISI SS-304/AISI SS-36, snap action bayonet type bezel Movement : AISI SS-304 Bourdon tube : AISI SS-36 Diaphragm : AISI SS36L/HASTELLOY-C/MONNEL/NICKEL Top chamber : AISI SS-304/AISI SS-36 Bottom chamber : AISI SS-36 Protection window : Plain glass/toughened glass/acrylic glass/safety glass Pointer : Zero adjustment micrometer pointer (internal) Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-/IP-67/IP-68 (as per IEC-6059) Pressure relief : Neoprene rubber disk on top & back side of the case Filling fluid : Glycerine/silicon oil(dc-00 grade)/flurolube oil/food grade vegetable oil ü Special design for critical process application ü Industrial heavy duty construction, ü Gauge accuracy : +/- % FS ü Over range protection : 30% FS./50% FS ü Available scale range in unit : BAR,PSI,MPA, ü Dual scale dial design ü External zero adjustment knob ü MRP(follower) pointer ü Glycerine filled or silicon oil filled ü PTFE lined or coated thread bottom chamber ü Electric contact (magnetic snap action contact) ü Extension capillary for remote mounting ü Flushing ring(spacer ring) for purgin/cleaning the diaphragm area 8
PGB4 - Test/Master Pressure Gauge Bourdon tube measuring element is made of a thin-walled c-shape tube or spirally wound helical or coiled tube. When pressure is applied to the measuring system through the pressure port (socket), the pressure causes the bourdon tube to straighten itself, thus causing the tip to move. The motion of the tip is transmitted via the link to the movement which converts the linear motion of the bourdon tube to a rotational motion that in turn causes the pointer to indicate the measured pressure. Reference standard : EN-837-/IS 364/IEC 6059 Ambient temperature : -0 to 80 C Opreating pressure limit : Max 75% of full scale value Scale range : kg/cm.000 kg/cm, compound range, vacuum range Dial size : 50/50 mm Mounting : Bottom entry/back entry/panel mounting/surface mounting/bracket mounting Process connection : /8,/4,3/8,/ NPT or BSP thread Connection type : Fixed welded connection Gauge accuracy : +/- 0.50%FS/0.5% FS. Over range protection : 30% FS Case & bezel : AISI SS-304/AISI SS-36, snap action bayonet type bezel Movement : AISI SS-304 for test gauge/jwelled bearing for master gauge Bourdon tube : AISI SS-36/Beralium copper(becu ) Socket : AISI SS-304/AISI SS-36 Protection window : Safety glass Pointer : Zero adjustment micrometer pointer(internal) Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-/IP-67/IP-68 (as per IEC-6059) Pressure relief : Neoprene rubber disk on top & back side of the case ü Special construction for better accuracy, ü High accuracy +/- 0.5% FS. or +/-0.50% FS ü Over range protection : 30% FS/50% FS ü Available scale range in unit : BAR, PSI, KG/CM, MPA ü Dual scale dial design ü External zero adjustment knob ü Glycerine filled or silicon oil filled ü calibration & testing lab ü pressure measuring equipment 9
PGB5 - Solid Front Safety Pattern Pressure Gauge Specifically designed for the chemical and petroleum processing industries, this process gauges have the construction, materials and engineering it takes to withstand rugged conditions. They are engineered to deliver years of accurate service, while withstanding vibration, corrosive media, corrosive environments and a wide range of temperature extremes. With the proven durability and performance of the this process gauge, it comes with an industry best warranty. Reference standard : EN-837-,IS 364/ASME B 40.00 GRADE A/IEC-6059 Ambient temperature : -5 to C Opreating pressure limit : Max 75% of full scale value Scale range : 0.000 kg/cm, compound range, vaccum range Dial size : 0 mm/4.5 Mounting : Direct bottom entry/surafce mounting Process connection : /8, /4, 3/8, / NPT or BSP thread Connection type : Fixed welded connection Gauge accuracy : +/- % FS/0.5 % FS Over range protection : 5% FS Case : Phenolic (PP with reinforced thermoplastic)/solid front safety Bezel : Cam lock, Fiber glass reinforced thermoplastic Cover : Stainless steel or plastic cover Movement : AISI SS-304/AISI SS-36 Bourdon tube : AISI SS-36/MONEL Socket : AISI SS-304/AISI SS-36 Protection window : Plain glass/toughened glass/acrylic glass/safety glass Pointer : Zero adjustment micrometer pointer(internal) Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-(as per IEC-6059) Pressure relief : Neoprene back size of case with ss cover ü Solid front safety case ü Gauge accuracy : +/- % FS or +/- 0.5% FS (accuracy complies ASME B40.00 grade A) ü Available scale range in unit : kg/cm, BAR, PSI, MPA, KPA ü Dual scale dial design ü Glycerine filled or silicon oil filled 0
PGC - Capsule Diaphragm Pressure Gauge Schaffer and capsule diaphragm pressure gauges are designed for measuring low/very low pressures and vacuum. The capsule consists of two diaphragms joined and sealed around their circumference. Normally, pressure is applied to the inside of the capsule, which changes shape as a result. By means of a link and gear movement system, this deflection is converted into rotation of a concentric pointer indicating pressure on a dial. Reference standard : EN-837-3/IS 364/IEC 6059 Ambient temperature : -0 to 80 C Opreating pressure limit : Max 75% of full scale value Scale range : 0 7000 mm wc, kg/cm, compound range, vaccum range Dial size : 00 mm/50 mm Mounting : Bottom entry Process connection : /4, 3/8, / NPT or BSP thread, Gauge accuracy : +/-.6% FS Over range protection : 0% FS Case & bezel : AISI SS-304/AISI SS-36, Snap action bayonet type bezel Movement : AISI SS-304 Capsule : AISI SS-36 Diaphragm : AISI SS36L Top chamber : M.S. Powder coated/aisi SS304 Bottom chamber : AISI SS36 Protection window : Plain glass/toughened glass/acrylic glass/safety glass Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-(as per IEC-6059) Pressure relief : Neoprene rubber disk on top & back side of the case ELECTRIC CONTACT ü Electric Contact Model : Transparent Hood ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact Rating : 380V AC, Amp Max, 30W ü Low range with high accuracy ü Compact design ü Pressure gauge are well suited for low pressure measurement ü All stainless steel constriction ü Gauge accuracy +/-.6% FS ü Available scale range in unit : MM WC, MBAR, KPA, KG/CM, MMH0 ü Dual scale dial design ü External zero adjustment knob ü MRP(follower) pointer ü PTFE lined or coated thread bottom chamber ü Electric contact (magnetic snap action contact ) ü Other process connection available (M8x.5, M0x.5, M7x, M33x etc)
PGC - Industrial Capsule Pressure Gauge Capsule pressure gauges are designed for measuring low/very low pressures and vacuum. The capsule consists of two diaphragms joined and sealed around their circumference. Normally, pressure is applied to the inside of the capsule, which changes shape as a result. By means of a link and gear movement system, this deflection is converted into rotation of a concentric pointer indicating pressure on a dial. Reference standard : EN-837-3/IS 364/IEC 6059 Ambient temperature : -0 to 80 C Opreating pressure limit : Max 75% of full scale value Scale range : 0 0 mm wc, compound range, vaccum range Dial size : 63/00/50 mm Mounting : Bottom entry/back entry/panel mounting/surface mounting, Process connection : /4, 3/8, / NPT or BSP thread, Gauge accuracy : +/-.6 % FS Over range protection : 0% FS Case & bezel : AISI SS-304/AISI SS-36, Snap action bayonet type bezel Movement : Brass/AISI SS-304 Capsule : AISI SS-36 Socket : AISI SS-304/AISI SS-36 Protection window : Plain glass/toughened glass/acrylic glass/safety glass Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-(as per IEC-6059) Pressure relief : Neoprene rubber disk on top & back side of the case ü Low range with high accuracy ü Compact design ü Pressure gauge are well suited for low pressure measurement ü All stainless steel constriction ü Gauge accuracy +/-.6% FS ü Available scale range in unit : MMWC, MBAR, KPA, MMH0 ü Dual scale dial design ü External zero adjustment knob ü MRP(follower) pointer ü Other process connection available (M8x.5, M0x.5, M7x, M33x etc)
PGDP - Single Diaphragm Differential Pressure Gauge Differential pressure gauges are suitable for corrosive atmospheres & gaseous media. These gauges are used to check differential pressure of gases & liquids which do not have high viscosity and do not crystallize. Reference Standard : EN-837-3/IS 364/IEC 6059 Ambient Temperature : -0 To C Process Temperature : Max +00 C Opreating pressure limit : Max 75% of full scale value Scale range : 0 0 mm Wc/..0 kg/cm, vacuum, compound range Static pressure : 0 times of scale range Dial size : 00/50 mm Mounting : Bottom entry/back entry/panel mounting/wall mounting/ pipe mounting bracket Process connection : /4 NPT(F) standard connection, Gauge accuracy : +/-.5% FS or +/-.6% FS Over range protection : 0% FS Case & bezel : AISI SS-304/AISI SS-36, Snap action bayonet type bezel Movement : AISI SS-304/AISI SS36 Single diaphragm : AISI SS36L Low pressure chamber : AISI SS-304/AISI SS36 High pressure chamber : AISI SS-304/AISI SS36 Protection window : Plain glass/toughened glass/acrylic glass/safety glass Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-(as per IEC-6059) Pressure relief : Neoprene rubber disk on top ELECTRIC CONTACT ü Electric Contact Model : Transparent Hood ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact Rating : 380V AC, Amp Max, 30W ü Suitable for corrosive atmosphere ü Suitable for liquid and gases medium ü All SS measuring system ü Available scale range in unit : mmwc, mbar, kpa, kg/cm, mmho ü Dual scale dial design ü External zero adjustment pointer ü Glycerine filled or silicon oil filled ü Electric contact (magnetic snap action contact) 3
PGDP - Double Diaphragm Differential Pressure Gauge These instruments are used to check differential pressures of gaseous liquids which do not have high viscosity and do not crystalizee. In presence of high temperature, high viscosity and corrosive process fluid or which can crystalize these instruments can be fitted with remote mounting diaphragm seals. The measuring element is formed by two diaphragms, acting on the same movement. In this way the pointer senses only the difference between the two pressures corresponding respectively to upstream and downstream circuit pressure. Reference standard : EN-837-3/IS 364/IEC 6059 Ambient temperature : -0 to 60 C Process temperature : Max +00 C Opreating pressure limit : Max 75% of full scale value Scale range : 0 4000 mmwc/..40 kg/cm, vaccum, compound range Static pressure : maximum upto 400 kg/cm Dial size : 00 mm/50 mm Mounting : Bottom entry/back entry/panel mounting/wall mounting/ pipe mounting bracket Process connection : Nos x /4 NPT(F) standard connection Purgin plugs : Nos x /4 NPT(M) Gauge accuracy : +/-.6% FS or +/-.5% FS Over range protection : 30% FS Case & bezel : AISI SS-304/AISI SS-36, Snap action bayonet type bezel Movement : Stainless steel with ball bearing Double diaphragm : AISI SS36L/Hastelloy-c/Monel-400 Central chamber : AISI SS-304/AISI SS36 Side chamber : AISI SS-304/AISI SS36 Nut & bolts : Stainless steel Protection window : Plain glass/toughened glass/acrylic glass/safety glass Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP- (as per IEC-6059) Pressure relief : Neoprene rubber disk on top Trasnmission filling fluid : Silicon oil(grade dc-00) ELECTRIC CONTACT ü Electric Contact Model : Trasnperent Hood ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact Rating : 380V AC, Amp Max, 30W ü Suitable for corrosive atmosphere & gases media ü All SS measuring system ü Static pressure 400bar max. ü Available scale range in unit : mmwc, mbar, kpa, kg/cm, mmho ü Dual scale dial design ü External zero adjustment pointer ü Glycerine filled or silicon oil filled ü electric contact (magnetic snap action contact ) ü Other connection available on request ü Liquid & gaseous media ü Corrosive environment ü Oil & gas application ü Chemical & petrochemical ü Level measurement in closed tank ü Filter monitoring 4
PGDP3 - Magnetic Pistion Differential Pressure Gauge High and low pressures are separated by a sensor assembly consisting of a magnet, piston,teflon seal and a range spring.the difference in pressure causes the sensor assembly to move in proportion to the change against a range spring. A rotary magnet, located in a separate body cavity and isolated from the acting pressures, is rotated by magnetic coupling as per the linear movement of the sensor assembly. A pointer attached to the rotary magnet indicates differential pressure on the dial. This piston-style differential pressure gauge is designed for use with clean liquid or gaseous media where high differential pressure/static process pressures are required. It is suitable for measuring pressure drops across a variety of devices, including filters, strainers, separators and heat exchangers. Reference standard : IS 364 Ambient temperature : -5 to C Process temperature : Max +80 C, +00 C (optional) Scale range : DP range 0 0 bar Max. Static pressure : 00 bar, 450 bar or 700 bar Dial size : 63/00/50 mm Mounting : Inline direct bottom entry & side entry/panel mounting/ pipe mounting Process connection : x/4 NPT(F) standard connection Gauge accuracy : +/-% FS or +/-.5% FS Case & bezel : AISI SS-304 snap action bayonet type bezel Sensing element : Piston Wetted parts : Aluminum, SS-30 spring, Teflon & ceramic magnet Housing : Aluminum/AISI SS-36 Protection window : Plain glass/toughened glass/acrylic glass Seals : Viton & EPDM O Ring Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-(as per IEC-6059) ELECTRIC CONTACT ü Electric Contact Model : Transparent Hood ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact Rating : 380V AC, Amp Max, 30W ü Compact design ü Static pressure upto 00bar ü Case glycerine filled ü Red follower pointer ü Switching facility(between 0 to 00% of full span) ü Filter manufacturer ü Water treatment plant ü Air dryer system ü Textile machinery ü filters ü Hydraulic systems ü Chemical plants ü Natural gas processing ü Heat exchanger ü Gasoline / Diesel engine filters ü Pumps, Valves, Compressors 5
PGDP4 - Capsule Differential Pressure Gauge Capsule differential pressure gauge are desgined for measuring very low differential pressure for gaseous,dry,clean,oil and grease free media. Reference standard : EN-837-3/IS 364/IEC 6059 Ambeint temperature : -0 to 60 C Medium temperature max. : 70 C Opreating pressure limit : Max 75% of full scale value Scale range : 0 500 mmwc Static pressure : Max 400 mbar/max 50 mbar Dial size : 00/50 mm Mounting : Bottom entry/back entry/panel mounting/wall mounting Process connection : Parallel connection x/ NPT(M) (other connection on request) Gauge accuracy : +/- % FS Over range protection : 5% FS Case & bezel : AISI SS-304/AISI SS-36, Snap action bayonet type bezel Movement : Brass Capsule : AISI SS-36/PB capsule Socket : AISI SS-36 Sealing gasket : Neoprene Protection window : Plain glass/toughened glass/acrylic glass/safety glass Pointer : Aluminum Joints : Argon arc welded Dial : Aluminium, Black marking on white background Protection class : Weatherproof IP-(as per IEC-6059) Pressure relief : Neoprene rubber disk on top & back side of case ELECTRIC CONTACT ü Electric Contact Model : Transparent Hood ü Contact : NO, NC, NO+ NC, NO, NC, NO+NC ü Contact Rating : 380V AC, Amp Max, 30W ü Low differential pressure measurement with high accuracy ü Sensing element capsule in SS36 ü Designed for measuring small differential pressure on clean & dry air or gas system ü Available scale range in unit : mmwc, mbar, kpa, mmho ü Dual scale dial design 6
ACCESSORIES SNUBBER SYPHON Pressure gauge snubbers are intended to suppress the effect of pressure pulses and pressure peaks. Adjustable snubbers are provided with an adjustable needle valve that enables the operator to restrict the flow as operating conditions may demand even when the snubber is in service. pressure gauge snubbers will considerably increase the service life of pressure gauges in harsh applications such as on reciprocating pumps and compressors, hydraulic presses or fluid power systems and will additionally improve the reading accuracy of the gauge. Technical Specifications Material : AISI SS-304/AISI SS-36 Connection Available : /4, ½, 3/8 BSP or NPT External Adjustable Provide Pressure Rating : 0 PSI Pressure gauge syphon are used to protect the pressure gauge from the effect of hot pressure media such as steam and also to reduce the effect of rapid pressure surges. The pressure medium forms a condensate and is collected inside the coil or pigtail portion of the syphon. The condensate prevents the hot media from coming in direct contact with the pressure instrument. When the syphon is first installed, it should be filled with water or any other suitable separating liquid Technical Specifications Type : U Design/ Q Design Design : Pigtail/Coil Type Material : AISI SS-304/AISI SS-36 Connection Available : /4, ½, 3/8 BSP or NPT Pipe : Seamless Sch-40S/Seamless Sch-80S S l syphon for steam services l Pigtail for vertical installations l Coil for horizontal installations GAUGE COCK GAUGE SAVER Gauge cocks provide an economical way to shut off the flow of air to the pressure instrument, thereby allowing the instrument to be isolated from the pressure media or removed from service. Gauge cocks are constructed from steel and are intended for use on air lines where leakage is not of concern. Technical specifications Type : way gauge cock/3 way gauge cock Body material : AISI SS-304/AISI SS-36 Stem material : AISI SS-304/AISI SS-36 Connection available : /4, ½, 3/8 BSP or NPT Process thread : Female thread Gauge saver is adjustable over pressure protectors are intended to protect pressure gauges against the effect of pressures exceeding their maximum pressure rating Technical specifications Body material : AISI SS-304/AISI SS-36 Piston valve : AISI SS-36 Connection available : /4, ½, 3/8 BSP or NPT Pressure rating : 0 PSI Pressure connection : Male inlet, Female outlet Opreating temperature : Max. 80 C 7
ACCESSORIES NEEDLE VALVE Intended to isolate the pressure gauge from the measured fluid or to provide a means of throttling or dampening pressure pulsation. BALL VALVE Ball valve provide an economical way to shut off the flow of air/water to the pressure instrument, thereby allowing the instrument to be isolated from the pressure media or removed from service Technical Specifications Body Material : AISI SS-304/AISI SS-36 Connection Available : /4, ½, 3/8 BSP Or NPT Pressure Rating : 0 PSI Technical Specifications Type : Investment casting/bar stock design Material : AISI SS-304/AISI SS-36 Connection available : /4, ½, 3/8 BSP or NPT Process thread : Female thread Pressure rating : 0 PSI MANIFOLD VALVE Valve is used for pressure equalizing in the process media. Technical Specifications Model : way manifold valve 3 way manifold valve 5 way manifold valve Design : R type, T type, H type Material : AISI SS-304/AISI SS-36 Connection available : /4, /,3/8 BSP or NPT Process thread : Female inlet/female outlet 8
THERMOWELLS Thermowells provide protection for temperature probes against unfavorable operating conditions such as corrosive media, physical impact (e.g. Clinker in furnaces) and high pressure gas or liquid. Their use also permits quick and easy probe interchanging without the need to open-up the process.it is closed-end reentrant tube designed for insertion of a temperature-sensing element, and provided with means for a pressure-tight attachment to a vessel. Thermowells are typically constructed of solid drilled-out bar stock and are designed to protect a temperature sensor from flow, high pressure and harsh environments. Thermowells encase and protect temperature gauge from the harmful effects of the processes into which they are immersed without substantially insulating the temperature sensor from the temperature of the process. The most common types of thermowells are :- () threaded thermowell () flanged welded thermowell Thermowells are classified according to their connection to a process. () Threaded Thermowell A threaded thermowell has threads at its one end and is screwed into the process. Thread can be of tapered or parallel type. Parallel or tapered thread is made for convenient installation into a weld in fitting directly into the process.such a connection is suitable for smaller diameter well, which are not likely to be changed. Technical Specifications Type : Threaded thermowell Construction : Fabricated in seamless pipe or bar stock thermowell Process connection : As per customer requirement(bsp or NPT thread) Instrument connection : As per customer requirement(bsp or NPT thread) Extension length : As per customer requirement Immserion length : As per customer requirement Total length : As per customer requirement (extension length + immersion length) () Flanged Thermowell A flanged thermowell has a flange collar which is attached to a mating flange. Flanged connection is preferable if there is a need for more frequent well replacement such as high corrosion rates. 9 Technical Specifications Type : Flanged thermowell Constrcution : Fabricated in seamless pipe or bar stock thermowell Process connection : Flange connection(as per customer requirements) Instrument connection : As per customer requirement Extension length : As per customer requirement Immserion length : As per customer requirement Total length : As per customer requirement (extension length + immersion length) Fabricated Thermowell Fabricated thermowells are manufactured from tubes which are sealed by a solid welded tip at the process. It means that the stem of thermowell is manufactured from tube and tip is made separately than both these parts are welded by utilizing suitable welding process. The flange is also joined to this assembly by welding process. Fabricated thermowells are generally recommended for low to medium process loads. Connection to the pipe or vessel may be done by means of thread, flange or weld. Standard threads used in fabricated thermowell are npt, bsp (pl), bsp (tr),api & metric thread. The thread size is dependent on the application. Standard sizes range from /8 to. For applications where a quick response to changes in temperature is required, fabricated pockets may be fitted with a reduced tip. Bar stock Thermowell Such thermowell bodies are machined and drilled from solid bar stock. This results in a non-welded water tight unit. In this immersion tip is also made by same material along with stem. In such type of thermowell, no welding process is required for stem and tip production. Flange can be weld according to requirement. Bar-stock thermowell is also known as solid drilled thermowell. Single piece thermowells are manufactured from a complete element or bar stock. One-piece thermowells are suited to the highest process loads, depending on their design. Thus internationally or in the petrochemical industry, one-piece thermocouples are now used almost exclusively. Connection to the pipe or vessel may be done by means of thread, flange or weld. Standard threads are npt, bsp (p), bsp (tr), api & metric tread. The thread size is dependent on the application, but 3/4 and are common.
TECHNICAL REFERENCES TEMPERATURE Nominal Range ( C) -40 to +60-40 to +40-30 to +70-30 to +50-30 to +30-0 to +0-0 to +60-0 to +40 0 to 60 0 to 80 0 to 00 0 to 0 0 to 60 0 to 00 0 to 50 0 to 300 0 to 400 0 to 500 0 to Scale Spacing ( C) C C C C C C C C C C C C C C 5 C 5 C 5 C 5 C 0 C Measuring Range ( C) -30 to +50-30 to +30-0 to +60-0 to +40-0 to +0-0 to +0-0 to +50-0 to +30 0 to 50 0 to 70 0 to 90 0 to 0 0 to 40 0 to 80 30 to 0 30 to 70 50 to 350 50 to 450 00 to 500 Note : Any special range and least count available on request. Limits of Error ( C).5 5 5 5 0 Nominal Range ( C) -40 to +60-40 to +40-30 to +70-30 to +50-30 to +30-0 to +0-0 to +60-0 to +40 0 to 60 0 to 80 0 to 00 0 to 0 0 to 60 0 to 00 0 to 50 0 to 300 0 to 400 0 to Stem Length for ϕs = 6mm Stem Length for ϕs= 8,0mm Stem Length for ϕs = mm Min. Max. Min. Max. Min. Max. 90 00 90 00 0 00 0 0 00 80 80 80 00 80 00 00 80 80 80 80 00 80 00 00 80 PRESSURE PRESSURE UNIT CROSS REFERENCE CHART PSI atms in H O mm H O cm H O oz/in kg/cm in Hg mm Hg cm Hg mbar bar Pa kpa mpa 0.06805 7.68 703. 70.3 6.00 0.073.036 5.7 5.7 68.95 0.06895 6895 6.895 0.006895 4.70 406.8 033 033 3..033 9.9 760.0 76.00 03.03 035 0.3 0.03 0.0363 0.00458 5.40.540 0.5780 0.00540 0.07356.868 0.868.49 0.0049 49. 0.49 0.0005 0.004 9.678E-05 0.03937 0.000 0.076.00E-04 0.00896 0.07355 0.007355 0.09806 9.806E-05 9.806 0.009806 0.00000 0.04 0.000968 0.3937 0.00 0.76 0.000 0.0896 0.7356 0.07356 0.9807 0.0009807 98.07 0.09807 0.0000 0.065 0.00453.730 43.94 4.394 0.004394 0.73 3.3 0.33 4.309 0.004309 430.9 0.4309 0.0004309 4. 0.9678 393.7 0000 000 7.6 8.96 735.6 73.56 980.7 0.9807 980.66 98.07 0.098066 0.495 0.0334 3.59 345.3 34.53 7.858 0.03453 5.40.540 33.86 0.03386 3386 3.386 0.003386 0.0934 0.0036 0.535 3.60.360 0.3094 0.00360 0.03937 0.000.33 0.00333 33.3 0.333 0.000333 0.934 0.036 5.35 36.0 3.60 3.094 0.0360 0.3937 0 3.33 0.0333 333.333 0.00333 0.045 0.0009869 0.405 0.0.00 0.3 0.0000 0.0953 0.750 0.0750 0.00000 00.0 0.0000 0.000 4.50 0.9869 40.5 097 00 3..00 9.53 750. 75.0 000 00000 00.0 0.000 0.00045 9.867E-06 0.00404 0.09 0.009 0.0030.09E-05 0.00095 0.007499 0.000750 0.0000 9.9974E-06 0.0009997 0.00000 0.450 0.009869 4.05 0.0 0.0.3 0.000 0.953 7.50 0.750 0.00 0.0000 000 0.00 45.0 9.869 404 0968 097 3 0.0 95.3 7500 750.0 0000 0.00 000000 000 Note : Any special range and least count available on request. 0
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