Integral bonnet valves, steel bodies, stainless steel trim; wide choice of connections

Transcription

1 NORTHEAST CONTROLS INC. TEL: FAX: GAGE COCKS CONNECTION UN~IO~N~~~~EII~= Section: J100 Bulletin: J Date: 6/05 Supercedes: 1/99 Specialists in Liquid Level Indication For Reflex or Transparent Flat Glass Gages No. 140 Integral bonnet valves, steel bodies, stainless steel trim; wide choice of connections Straight & offset pattern Numerous options Jerguson No. 140 Series Valves provide long trouble-free service at economical cost. Their design incorporates such quality features as stainless steel stems and ballchecks. A comprehensive selection of connections. provides the versatility required to conform to most piping requirements. Optional features permit a high degree of customization to meet very specific demands. NO. 140 SERIES VALVES The series consists of the following valves: No straight pattern with non-union gage connection No straight pattern with union gage connection No offset pattern with non-union gage connection No offset pattern with union gage connection PRESSURE RATINGS 2400 Ibs. 100 F., 1400 Ibs. 750 F. STANDARD FEATURES Safety Shut-off: All No. 140 Series Valves are equipped with stainless steel ballchecks upstream from the seats which instantaneously shut off flow of medium being gaged in case of gage glass breakage. The ball may be omitted on request. Bonnet: The bonnet on all No. 140 Series Valves screws directly onto the outside of the forged body. The inner area bears on the packing gland. Union Tank Connection: Series 140 Valves are equipped with union tank connections which permit simple installation and easy access to the ballcheck. Union Gage Connection: No. 147 and No. 144 are furnished with a union gage connection which allows a top and bottom connected gage to be turned to any desired angle for convenient visibility. It also makes possible removal of the gage without removing the valves or draining the liquid from the vessel - a feature which saves time when the gages must be cleaned or maintained. Offset Patten: No.146 and NO.147 valve bodies are designed so that the gage connections are offset W' from the «t of the vessel connections. By removing the plug, the interior of top and bottom connected gage may also be swabbed without disassembly. TANK ADJUSTABLE NO. 143 NO.144 NO. 146 NO LL..--f'I~ _r---fii... Liquid Level Gages and Valves for the Power and Process Industries

2 JERGUSON GAGE AND VALVE A Division of The Clark Reliance Corporation NORTHEAST CONTROLS INC. TEL: FAX: NO. 140 SERIES VALVES MATERIALS No. 140 Series Valves have steel bodies and malleable iron handwheels. Long life is assured by the use of stainless steel for the stem, and ballcheck. Materials used to conform to or exceed requirements of AI.S.I., AS.T.M. and/or A.P.I. - AS.M.E. for recommended pressures. SPECIAL CONNECTIONS (extra charge) No. 140 Series Valves can be furnished upon request with Flanged, Socket Welding, Solid Shank (non-union) and Spherical Union Connections. The use of Spherical Unions on inlets and outlets with top and bottom connected gages is particularly valuable lest the vessel connections are not perfectly parallel. This construction will compensate for up to 10 misalignment of vessel tapping in any direction from the stem axis and up to plus or minus %" variation from mean centers. The same compensation may be had on side connected gages using single spherical tailpieces on the outlet connections. SOCKET WELDING SPHERICAL UNION ROUGHING DIMENSIONS To determine maximum space available for top and bottom connected gage, deduct from center to center dimensions: 3W' on Nos. 143 and 146 5Ye" on Nos. 144 and 147 Note A %" dimension applies to all W' N.P.T. end connected Reflex and Transparent gages except L-1 0 which is 1 X". Note B. To determine overall length of W' I.P.S. nipples add Ye" to distance between gage and valve. For side connected gages: Refer to bulletin on page selected. Using No. 143 or 144 valves the side centers on the gage and thecentersarethesame. Using No. 1460rNo. 147 valves with offsets inside gage centers, deduct 1 %" from side centers. Using No. 146 or No. 147 valves with offsets outside gage centers, add 1%" from side centers. NOTE C-Center line to face dimensions on 143 & 146 is 1 'h" STANDARD CONNECTIONS Vessel: %" N.P.T. Male Gage: W N.P.T. Female Vent: }f" N.P.T. Female Drain: W N.P.T. Female (143,144,146,147); %" N.P.T. Female (146,147) OPTIONAL CONNECTIONS Vessel: ~"N.P.T. Male or Female, %" N.P.T. Female, 1" N.P.T. Male Gage: %" N.P.T. Female Wor %" N.P.T. Male union on 143,144, 146, 147 valves SOLID SHANK EFFECT OF SPHERICAL UNION, the SPECIAL FEATURES Vertical Rising Ballcheck: No Bleed Fitting: A bleed fitting is An additional safety feature in the bottom valve of a available making it possible to top and bottom connected assembly is an optional bleed pressure from the valve and vertical rising ballcheck on the downstream side of connected instrument without seat. This arrangement shuts off the flow of liquid breaking any threaded connecin case of fracture of the instrument or connecting pip tions. The bleed fitting is designed ing and eliminates the horizontal ball in the bottom fit so its stem cannot be withdrawn ting. A W' male drain is standard. A cap may be fur accidentally. It is tapped for )Is" nished on request. N.P.T. discharge.

3 NORTHEAST CONTROLS INC. TEL: FAX: Section: J100 GAGE Bulletin: J Date: 6/05 COCKS Supercedes: 1/99 Specialists in Liquid Level Indication For Reflex or Transparent Flat Glass Gages No. 60 Union bonnet valves, steel bodies, stainless steel trim; wide choice olleatures and connections Regrindable, renewable seat Jerguson No. 60 Series Valves are designed and built to the highest standards. Quality features such as stainless steel stems, seats, and ball check, regrindable and renewable seats. A wide selection of optional features permit a high degree of customizing to meet very specific demands. Pressure Ratings 4000 Ibs F., 1500 Ibs F. standard steam rating WSP No. 60 Series Valve The series consists of the following valve: No straight pattern with female NPT gage connection. No straight pattern with union gage connection. No offset pattern with female NPT gage connection. No offset pattern with union gage connection. Standard Features Safety shut-off: All No. 60 Series Valves are equipped with a stainless steel ball check located upstream 'from the seat which instantaneously shuts off flow of medium being gaged in case of gage glass breakage. The ball may be omitted on request. Union Gage Connection: Nos. 64 and 67 are furnished with a union gage connection which allows a top and bottom connected gage to be turned to any desired angle for convenient visibility. It makes possible removal of the gage without removing the valves - a feature which saves time when gages must be cleaned or maintained. Offset Pattern: Nos. 66 and 67 valve bodies are designed so the gage and drain connections are offset ;Is" from the <t of the vessel connectios. By removing the plug the interior of a top and bottom connected gage glass may be swabbed without removing the gage. Convertible to Quick Closing: No. 60 Series Valves may be converted from plain to quick-closing, in the field, by replacement of sleeve, stem and packing. Regrindable, Renewable Seat: The seat may be reground using the sleeve as a guide. The seat may be renewed by removing the seat with a standard wrench. ADJUSTABLE,- "'~":" UrNii[i[]N~~lli~~1 NO. 67 STEEL SLEEVE Liqwid Cevel Gages and Valves for the Power and Process Industries ~-,

4 JERGUSON GAGE AND VALVE A Division of The Clark Reliance CBl Corporation NORTHEAST CONTROLS INC. TEL: FAX: NO. 60 SERIES VALVES Special Connections (extra charge) No. 60 Series Valves can be furnished upon request with Flanged, Socket Welding, Solid Shank(non-union) and Spherical Union Connections. The use of Spherical Unions on inlets and outlets with top and bottom connected gages is particularly valuable when the vessel connections are not perfectly parallel. This construction will compensate for up to 10 misalignment of vessel tapping in any direction from the perpendicular axis and up to plus or minus %" from mean centers. The same compensation may be had on side connected gages using single spherical tailpieces on the outlet connections. = q SOLID SHANK SOCKET WELDING l l EFFECT OF SPHERICAL UNION Materials No. 60 Series Valves have steel bodies and malleable iron handwheels. Long life is assured by the use of stainless steel for the seat, stainless steel for the stem, and stainless steel ball check. Roughing Dimensions To determine maximum space available for gage, deduct from center to center dimension: 3 ~" on No. 63, 66 5 %" on No. 64, 67 Note A. %" dimension applies to all W' N.P.T. end connected Reflex and Transparent gages except L-10 which is 1 W'. Note B. To determine overall length of~" I.P.S. nipples add %" to distance between gage and valve. For side connected gages: Refer to to bulletin on gage for cen ters. Straight valves will have equal centers. Offset valve cen ters will be 1 %" more (offset ouside gage centers) or less (off set inside gage centers). Standard Connections Vessel: %" N.P.T. Male Gage: W' N.P.T. Female Vent: W' N.P.T. Female Drain: ~"N.P.T. Female Optional Connections Vessel: W' N.P.T. Male or Female, %" N.P.T. Female, Gage: 1" N.P.T. Male %" N.P.T. Female W' or %" N.P.T. Male union on 64 and 67 valves SPHERICAL UNION Backseating Stem: When backseating stem is backed out to its limit the knob on the stem seats against the sleeve which protects the packing from the fluid. Quick Closing: Quick-closing valve stems with leversforchain operation. Exclusive equalizing plate assures positive closing ot both valves. Stems have quadruple thread for full closing or opening in Y.I turn. Bleed Fitting: A bleed fitting is available making it possible to bleed pressure from the valve and connected gage without breaking any threaded connections. The bleed fitting is designed so its stem cannot be withdrawn accidentally. It is tapped for ji" N.P.T. discharge. Downstream Ball Check: No. 67. An additional safety feature in the bottom valve ofatopand bottom connected assembly is an optional ball check on the downstream side ofthe bottom valve seat. This arrangement shuts off the flow of liquid in case of fracture of the instrument of connecting piping and eliminates the upsream ball in the bottom fitting. A Wmale drain is standard. Acap may. be furnished on request. BACKSEATING STEM BLEED FITTING

5 NORTHEAST CONTROLS INC. TEL: FAX: GAGE COCKS Section: J100 Bulletin: J Date: 1/1/99 Supercedes: 70L Specialists in Liquid Level Indication For Reflex or Transparent Flat Glass Gages No. 70BL &70XL 800 Ibs. ASME rated valves, bolted bonnet OSIY construction, steel bodies, with stainless steel trim; wide choice olleatures and connections Regrindable, renewable seat NO. 70BL SERIES VALVES The series consists of the following valves: No. 73BL - straight pattern with female NPT gage connection No. 74Bl - straight pattern with union gage connection No. 76Bl - offset pattern with female NPT gage connection No. 77BL - offset pattern with union gage connection Note: No. 70XL Valve same as No. 70Bl Valve except without ballcheck for use as instrument valve. PRESSURE RATINGS ASME 600# Steel 1480 psi 100 F psi 750 F psi 100 F. 845 psi 750 F. MANUFACTURER'S RATING Steel 3000 psi 100 F psi 750 F psi 100 F. 850 psi 750 F. STANDARD FEATURES 05& Y + Backseating Stem: The yoke supports the stem away from the valve body so the threaded portion of the stem is uneffected by heat and does not come in contact with process fluids. The stem has a backseating area which protects the packing from the fluid. Renewable Seat: The seat may be removed or replaced with a %" socket wrench. Union Gage Connection: Nos. 74Bland 77Blare furnished with a union gage connection which allows a top and bottom connected gage to be turned to any desired angle for convenient visibility. It also makes possible the removal of the gage without removing the valves - a feature which saves time when gages must be cleaned or seniced. Offset Pattern: Nos. 76Bl and 77Bl valve bodies are designed so the gage and drain connections are offset ~" from the ct of the vessel connections. By removing the plugs the interior of a top and bottom connected gage glass may be swabbed without removing the gage. Safety shut-off: All No. 70Bl Series Valves are equipped with a stainless steel ballcheck upstream from the seat which instantaneouslyshuts off flow of medium being gaged in case of gage glass breakage. NO. 76 BL STAINLESS STEEL BALL CHECK 74BU74XL 77BU77XL Built to ASME, API Standards Jerguson No. 70Bl and 70Xl Series Valves are designed for use with flat glass gages, instrument piping and for other applications requiring a rugged, lightweight valve. Pressure and temperature ratings to 600 lb. ASMEflange standards or manufacturer's ratings. Liquid Level Gages and Valves for the Power and Process Industries

6 JERGUSON GAGE AND VALVE A Division of The Clark Reliance Corporation NORTHEAST CONTROLS INC. TEL: FAX: NO. 70BL &70XL SERIES VALVES MATERIALS No. 70 BL and No. 70 XL Series Valve bodies are carbon steel. The valve has stainless steel seat and stem. Valves can be furnished in special metals for special applications. Typical are other stainless steels, monel, carpenter No. 20, Hastelloy "C". For temperature service over 600 F, specify high temperature packing. ROUGHING DIMENSIONS To determine maximum space available for gage, deduct from center to center dimension: Nos. 74 BL & 77 BL - Nos. 73 BL & 76 BL - deduct 6W' (W' or %" N.P.T. female gage connection.) deduct 4W' (W' or %" N.P.T. female gage connection.) Note A. %" dimension applies to all W' N.P.T. end connected Reflex and Transparent Gages except L-1 0 which ish!". Note B. To determine overall length of W' nipples add W' to distance between gage and valve. For side connected gages: Refer to bulletin on gage for centers. Straight valves will have equal centers. Offset valve centers will be 1 %" more (offset outside gage centers) or less (offset inside gage centers). SPECIAL FEATURES (extra charge) Ballcheck: Valves may be furnished with a ball which shuts off the flow of medium in case of a downstream rupture. Nos. 74BL and 77BL may have a downstream or upstream ball check. Nos. 73BL and 76BL may be equipped with an upstream ballcheck only. The downstream ballcheck is installed in bottom valve only when used in conjunction with end connected gages. Bleed Fitting: A bleed fitting is available making it possible to bleed pressure from the valve and connected instrument without breaking any threaded connections. The bleed fitting is designed so its stem cannot be withdrawn accidentally. It is tapped for W' discharge tube. STANDARD CONNECTIONS Vessel: %" N.P.T. Male non-union Gage: W' N.P.T. Female VentlDrain: W' N.P.T. Female OPTIONAL CONNECTIONS Vessel: W' N.P.T. or 1" Male non-union Gage: %" N.P.T. Female )j;" or %" N.P.T. Male unions on 74 BL and 77 B Valves Note: No. 70 XL same as No. 70 BL valve except without ballcheck. SPECIAL CONNECTIONS (extra charge) NO.70BLl70XL Series Vales can be furnished with %" flanged or male welding end vessel connections. Spherical unions are available on outlet connections which will compensate for up to plus or minus %" variation in mean centers when used with side connected gages. MALE WELD END SPHERICAL OUTLET /

7 NORTHEAST CONTROLS INC. TEL: FAX: GAGE COCKS Section: J100 Bulletin: J Date: 1/1/99 Supercedes: 70 Specialists in Liquid Level Indication For Reflex or Transparent Glass Gages No Ibs. ASME rated valves, bolted bonnet, OS&Yconstruction Stainless steel trim Reciprocating Backseating stem Jerguson No. 70 Series Valves are designed for use with flat glass gages, instrument piping and for other applications requiring a rugged valve. Pressure and temperature ratings to 900 lb. ANSI flange standards or manufacturer's ratings. NO. 70 SERIES VALVES The series consists of the following valves: No straight pattern with female NPT gage connection No straight pattern with union gage connection No offset pattern with female NPT gage connection No offset pattern with union gage connection PRESSURE RATINGS 4000 Ibs. 100 F., 1500 Ibs. 750 F. ASME 900 Ibs. standard up to 750 F. Special packing and materials available for temperatures to 1,000DF. STANDARD FEATURES OS&Y + Backseating Stem: The yoke supports the stem away from the valve body so the threaded portion of the stem is uneffected by the heat and does not come in contact with process fluids. The stem has a backseating area which allows repacking the valve under pressure. Renewable Seat: The seat may be renewed by removing the seat with a %" socket wrench. Union Gage Connection: Nos. 74 and 77 are furnished with a union gage connection which allows a top and bottom connected gage to be turned to any desired angle for convenient visibility. It also makes the possible removal of the gage without removing the valves - a feature which saves time when gages must be cleaned or maintained. Offset Pattern: Nos. 76 and 77 valve bodies are designed so the gage and drain connections are offset %" from the ct of the vessel connections. By removing the plugs the interior of a top and bottom connected gage glass may be swabbed without removing the gage. UNION ''''Llnt.l..t.-... AND c' TAPER STAINLESS STEEL BALL CHECK (OPTIONAl) Liquid Level Gages and Valves for the Power and Process Industries

8 JERGUSON GAGE AND VALVE A Division of The Clark Reliance Corporation NORTHEAST CONTROLS INC. TEL: FAX: NO.70 SERIES VALVES MATERIALS STANDARD CONNECTIONS OPTIONAL CONNECTIONS No. 70 Series Valve bodies are steel, Vessel: %" Male Vessel: 1" Male or %" with stainless steel stem and seat. Drain: W' Female or 1" weld end Carbon steel on other parts. Valves Gage: )6" Female Gage: %" Female can be furnished in 316 stainless steel W', )6" or %" Male on also. union valves (Nos. 74,77) SPECIAL CONNECTIONS (extra charge) No. 70 Series Valves can be furnished with %" or 1" flanged or welding end vessel connections. Spherical union gage connections may be furnished to compensate for piping errors. Spherical unions will compensate for up to 10 misalignment of tapping and up to plus or minus %" variation from mean centers when used with side connected gages. FLANGED SPHERICAL UNION GAGE CONNECTION ONLY (EFFECT OF SPHERICAL UNION) SPECIAL FEATURES (extra charge) Downstream (outlet) Ball Check: No. 74, 77. An additional safety feature in the bottom valve of a top and bottom connected assembly is a vertical rising ball check on the downstream side of the seat. This arrangement shuts off the flow of liquid in case of fracture of the instrument or connecting piping and eliminates the horizontal ball in the bottom fitting. A W' male drain is standard. A cap may be furnished on request. Ball checks are horizontal with side connected gages. Bleed Fitting: A bleed fitting is available making it possible to bleed pres sure from the valve and connected instrument without breaking any threaded connections. The bleed fit ting is designed so its stem cannot be with drawn accidentally. It is tapped for ~" discharge tube. ROUGHING DIMENSIONS To determine maximum space available for top and bottom connected gage, deduct from center to center dimension: 5W' on No. 73, 76 7%" on No. 74, 77 Note A. %" dimension applies to all W' NPT end connect ed Reflex and Transparent Gages except T-30 which is 1 %" and L-10 which is 1)4". Note B. To determine overall length of W nipples and %" to distance between gage and valve. For side connected gages: Refer to unit on gage for cen ters. Straight valves will have equal centers. Offset valve centers will be 1%" more (offset outside gage centers) or less (offset inside gage centers). 'h.. M.P.T. /

9 NORTHEAST CONTROLS INC. TEL: FAX: GAGE COCKS Section: J100 Bulletin: J Date: 1/1/99 Supercedes: 80 Specialists in Liquid Level Indication For Reflex or Transparent Flat Glass Gages No. 86 High pressure valve with bolted bonnet OS&Yconstruction Working pressure to 10,000 psi Reciprocating backseating stem Jerguson No. 86 Series Valves are designed and manufactured for use with flat glass gages, instrument piping and for other applications requiring a rugged valve in the higher pressure ranges. No. 86-H - standard construction No. 86-HO - with Viton "0" ring between bonnet and body and under renewable seat and drain plug. No. 86-V or 86-VO - with vertical rising ball check Standard construction with a spiral wound gasket between bonnet and body is rated at 6000 psi at 100 F. When a Viton "0" ring is used (~o. 86-HO or 86-VO) in place of the spiral wound gasket this valve is suitable for pressures to 10,000 psi at F. It is designed specifi ~ cally to be compatible with Jerguson's 10,000 psi Series 51 Flat Glass Gage. OS& Y construction provides a steel yoke which supports the stem away from the body of the valve. The threads are thus outside the valve body and do not come in contact with process media. No. 86 Valves are available with male socket weld or flanged tank connections only. The two outlet connections for gage and drain are W' N.P.T. - on 86H and 86V, and W' socket weld on 86HO and 86VO - unless otherwise specified. Pressure Ratings Nos. 86HO & Material Nos. 86H & 86V Valves 86VO Valves Carbon Steel 16,000 psi 100 F 3,550 psi 750 F 110,000 psi 400 F 316 SS 6,000 psi 100 F 3,920 psi 750 F 10,000 psi 400 F Liquid Level Gages and Valves for the Power and Process Industries

10 JERGUSON GAGE AND VALVE A Division of The Clark Reliance Corporation NORTHEAST CONTROLS INC. TEL: FAX: NO. 86 SERIES VALVES STANDARD FEATURES Loose Knob, Backseating Stem: The disc on the stem is keyed and free rotating. This assures perfect seating and eliminates the possibility of galling at the seat. Acme threads are used to assure easy operation. When the stem is backed out to its limit the knob on the stem seats against the bonnet sleeve allowing the stem to be repacked when the valve is under pressure. Renewable Seat: The seat may be removed using a %" hex socket wrench. 6 inch Diameter handwheel: No. 86 Series valves are equipped with large size handwheels for easier operation. STANDARD CONNECTIONS Vessel: %" or 1 " male socket weld or flanged to requirements Drain: W' female N.P.T. on 86H, W' male N.P.T. on 86V, "0" ring sealed plug on 86HO & 86VO Gage: W' female N.P.T. on 86H & 86V, W' female socket on 86HO & 86VO SPECIAL FEATURES (extra charge) Ballcheck: Valves may be furnished with a ver1:ical rising ballcheck which shuts off the flow of medium in case of a downstream rupture. The ballcheck is installed in the bottom valve only. Vessel or gage conn. can be flanged. MATERIALS Valve Body Seat Stem Loose Knob Sleeve Carbon Steel 4168S teliite #3 416 S8 3168S S 8tellite # / 2 CLOSED ROUGHING DIMENSIONS To determine maximum space for top and bottom connected gage, deduct from center to center dimension: 5W' on Nos. 86-H and 86-V 6)4" on Nos. 86-HO and 86-VO For side connected gages refer to unit on gage for centers. Because of offset bodies valve centers will be 1 %" more (offset outside gage centers) or less (offset inside gage centers).

11 NORTHEAST CONTROLS INC. TEL: FAX: GAGE Section: J100 Bulletin: J Date: 1/1/99 COCKS Supercedes: 90 Specialists in Liquid Level Indication For Reflex or Transparent Flat Glass Gages No. 90 Jacketed valves lor use with heated or cooled gages or other. services where small jacketed angle valves are required Plain or quick closing stem Regrindable and renewable seat Jerguson No. 90 Series Valves are designed especially for use with heated or cooled gages. A jacket surrounding the valve permits circulation of the heating or cooling medium. Four X" holes are tapped into the jacket for connection to the heating-cooling supply and/or tracing tube. NO. 93 VALVES INSTALLED ON EXTERNAL TUBE HEATED GAGE NO. 90 SERIES VALVES The series consists of the following valves: No Jacketed valve with union vessel connection and non-union gage connection. No Jacketed valve with union vessel connection and union gage connection. PRESSURE RATINGS Valve 4000 Ibs F., 1500 Ibs F. Jacket 600 Ibs. W.S. P. STANDARD FEATURES Convertible to Quick Closing: Plain closing threads and handwheels are standard. Quick-closing valves, stems and levers for chain operation can be furnished upon request at no extra cost. These stems have a quadruple thread for full closing or opening in X" turn. Valves can be converted at any time by replacement of stem and sleeve. Regrindable, Renewable Seat: Union sleeve bonnet construction permits regrinding of valve seat. Valve seat may be renewed by removing the seat with a standard wrench. Union Vessel Connection: A union vessel connection allows the valve to be easily installed and permits access to the ballcheck without disassembling valve. Union Gage Connection: No. 94 has a union gage connection which permits a top and bottom connected gage to be rotated to any convenient position or, when the valve is closed, permits removal of the gage without draining or removing pressure from the vessel. UNION GAGE CONNECTION (NO.94) UNION BONNET SCRE...ED ONTO FURGED STEEL BODY TYPICAL CUTAWAY VIEW (#94 SHOWN) Liquid Level Gages and Valves for the Power and Process Industries

12 JERGUSON GAGE AND VALVE A Division of The Clark Reliance Corporation NORTHEAST CONTROLS INC. TEL: FAX: NO. 90 SERIES VALVES MATERIALS Type 416 stainless steel seat, Type 416 stainless steel stem. Carbon steel body and jacket with malleable iron handwheel or lever.. I Materials used conform to or exceed requirements of A.I.S.I., A.S.T.M., and/or A.P.I.-A.S.M.E. f()r recommend ~pffi~uffis. i Safety Shut-off: No. 90 Series Valves provided with a stainless steel ballcheck which instantaneously shuts off flow of medium being gaged in case of glass breakage. The ball operates upstream from the seat and can be furnished for vacuum seating if required. STANDARD CONNECTIONS Vessel: %" N.P.T. Male Drain: W' N.P.T. Female Gage: ~"N.P.T. Female Jacket connections: four ;;." Female OPTIONAL CONNECTIONS Vessel: W' Male or Female %" Female Gage: %" Female ;;." Female or ~" or %" Male Union on No. 94 SPECIAL CONNECTIONS (extra charge) No. 90 Series Valves can be furnished with %" flanjed or male welding end vessel connections. Spherical Unions are available on both tank and gage connections (No. 94) which will compensate for up to 10 misalignment of tapping and up to plus or minus %" variation from meah cenl ters. On side connected gages a single spherical union on the outlet connections will provide the same flexibility. SOCKET WELDING SOLID SHANK SPHERICAL UNION SPECIAL FEATURES (extra charge) Backseating Stem: When stem is backed out to its Ilimit a knob on the stem seats against the sleeve permitting stem to be repacked under presrure. Bleed Fitting: A bleed fitting is available making it possible to bleed pressure from the valve and connected instrument withoutbreaking any threaded Connections. The bleed fitting is designed so its stem cannot pe withdrawn accidentally. It is tapped for),l;" discharge tube. ROUGHING DIMENSIONS IS" r" CLOSED i For side connected gages: Refer to unit gage selected to determine centers. No. 90 Series valve centers will be ~2"N.P.T. UNION COlliN. equal to gage centers. -94-U VALVE ONLY