Positioners Converters Limit Switches Position Transmitters Solenoid Valves Accessories. Selection and Application
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1 Positioners Converters Limit Switches Position Transmitters Solenoid Valves Accessories Selection and Application Associated s T 8355 EN ff. Edition January 2010 Information Sheet T 8350 EN
2 Positioners, converters, limit switches, position transmitters, solenoid valves and lock-up valves are transfer elements designed to adapt pneumatic control valves to the requirements of industrial plants. Supply pressure regulators and air reducing stations are used to supply the pneumatic instruments with compressed air. Positioners ensure a predetermined assignment between the valve position (controlled variable x) and control signal (reference variable w). They compare the control signal issued by pneumatic or electric automation equipment (controller, control station, process control system) to the travel or opening angle of the control valve and supply a corresponding output signal pressure (output variable y) (p st ). Positioners are often used as servo-booster as they convert low-energy signals into strong proportional signal pressures up to the maximum supply pressure (6 bar/90 psi). They can be used in standard and split-range operation. Depending on the input signal, a distinction is made between pneumatic (p/p) and electropneumatic (i/p) positioners. Pneumatic positioners accept an input signal of 0.2 to 1 bar (3 to 15 psi) and issue an output signal pressure (p st ) of maximum 6 bar (90 psi). Electropneumatic (i/p) positioners use an analog direct current signal of 4(0) to 20 ma or 1 to 5 ma as the input variable and issue an output signal pressure (p st ) up to 6 bar (90 psi). The Type Positioner additionally uses HART communication between field devices and the process control system. The Type and Type Positioners with PROFIBUS communication and Type and Type Positioners with FOUNDATION fieldbus communication are used to integrate final control elements into fieldbus systems. Electropneumatic (i/p) converters convert a DC input signal (control signal) directly into a pneumatic control signal (output signal pressure p st ). Limit switches consist of two inductive, electric or pneumatic contacts. They issue a signal whenever an adjusted limit is exceeded or not reached. Analog position transmitters assign a continuous 4 to 20 ma output signal to the valve travel. They signalize both end positions of the valve "Valve OPEN" and "Valve CLOSED" as well as intermediate valve positions. Solenoid valves convert binary signals issued by electric control equipment into binary pneumatic control signals. Lock-up valves shut off the signal pressure line of a pneumatic actuator upon failure of supply air or when the supply air falls below an adjusted value. As a result, the actuator is blocked. The control valve remains in its last position until the fault has been eliminated. The pneumatic remote adjuster is a precision regulator that can be adjusted precisely by hand. Air reducing stations and supply pressure regulators are used to provide pneumatic measuring and control equipment with filtered supply air at a constant pressure. 1.1 With p/p positioner 1.2 With i/p positioner 1.3 With i/p converter to 1 bar Fig. 1 Schematics of pneumatic control valves 2.1 Schematics 2.2 Control signal versus travel diagram for two control valves operating in the same direction 2.3 Control signal versus travel diagram for two control valves operating in opposing directions Fig. 2 Two control valves operated in parallel using a control signal y in split-range operation 3 p st Legend for Figs. 1 to 3 1 Pneumatic controller 3 p/p positioner 4 Continuous-action elec. controller 5 i/p converter 6 i/p positioner 7 Limit switch 8 3/2-way solenoid valve 9 Supply pressure regulator 10 Air supply w x y Reference variable Controlled variable Output variable Fig. 3 Schematics of a pneumatic control valve 2 T 8350 EN
3 Electropneumatic and pneumatic positioners Electropneumatic (i/p) Pneumatic (p/p) For linear actuators acc. to IEC , up to mm For Type 3277 (direct attachment) For linear actuator with rod-type yoke For Type 3278 Rotary Actuator For rotary actuators acc. to VDI/VDE 3845 Also with explosion EEx ia IIC T6 Also intrinsically safe w. CSA/FM approval Reference variable bar ( psi) ma ma ma Also split-range operation Also with limit switch Also with solenoid valve Also with position transmitter Convertible to p/p or i/p positioner Type * Refer to T EN for details T T T T 8385 T 8355 T 8359 T 8386 T 8386 T 8385 T 8355 T 8359 * Configuration and operation possible using TROVIS-VIEW software Smart positioners For linear actuators acc. to IEC , up to mm For Type 3277 (direct attachment) For linear actuator with rod-type yoke For Type 3278 Rotary Actuator For rotary actuators acc. to VDI/VDE 3845 Also with explosion EEx ia IIC T6 Also intrinsically safe w. CSA/FM approval Reference variable ma Also split-range operation Communication HART PROFIBUS FOUNDATION fieldbus Also with limit switch Also with solenoid valve Also with position transmitter Type * * * Refer to for details T /3 EN T EN T EN Ex d version (see next table) Type Type * Configuration and operation possible using TROVIS-VIEW software 3 T 8350 EN
4 Electropneumatic Ex d positioners For linear actuators acc. to IEC , up to mm For Type 3277 (direct attachment) For linear actuator with rod-type yoke For Type 3278 Rotary Actuator For rotary actuators acc. VDI/VDE 3845 Flameproof enclosure (EEx d) With Type 6116 i/p Converter Type 3770 Field Barrier Reference variable 4 20mA Also split-range Communication HART FFM (HART ) Also with limit switch Also with solenoid valve Type / / / / /6116 Refer to T EN for details T T / / / / /6116 Approvals ATEX FM CSA NEPSI ATEX ATEX FM CSA GOST Limit switches, position transmitters Limit switches for linear actuators Limit switches for rotary actuators Position transmitter for linear actuators, 4 20 ma, two-wire connection Alarm contacts Inductive Electric Pneumatic Version Without EEx ia IIC T6 EEx de II T6 Type Refer to for details T 8365 EN T 8368 EN T 8356 EN T 8390 EN T 8367 EN T 8363 EN Field barriers, solenoid valves, lock-up valves, supply pressure regulators, accessories Field barrier Ex d/ex i Solenoid valve f. pneum. control valves Pilot valve Ex d/ex em Supply pressure regulator Service unit model Filter regulator Pneumatic remote adjuster Pneumatic lock-up valve Reversing amplifier Pneumatic volume booster Type X Refer to T EN for details T 8379 T 3701 T 963 T T 8546 T T T 8510 T 8391 T 8392 T T 8350 EN
5 Digital positioners The Type 3730 and Type 3731 Positioners are single-acting or double-acting positioners designed for attachment to pneumatic linear or rotary actuators. Compared to conventional positioners, the use of digital signal processing provides the following advantages: User-friendly operation Automatic adjustment of zero and span during the initialization procedure (except for Type ) Automatic detection of faults occurring in the actuator Direction of action independent of the mounting position Permanent monitoring of zero Minimized air consumption Safe storage of all parameters in non-volatile EEPROM Optionally, these positioners may be equipped with the following additional functions: One or two inductive limit switches (proximity switches) Forced fail-safe venting of the actuator over a solenoid valve upon failure of an external signal. As a result, the control valve moves to its fail-safe position. Fig. 4 Type Electropneumatic Positioner, direct attachment to Type 3277 Actuator Type Electropneumatic Positioner Single-acting or double-acting electropneumatic positioner for attachment to pneumatic control valves. Travel range, range of reference variable, and direction of action selectable over DIP switches, zero and span adjustable over potentiometers Travel 5.3 to 200 mm Direct attachment to Type 3277 Actuator, to NAMUR ribs or rod-type yokes II 2 G EEx ia IIC T6 acc. to ATEX II 3 G EEx na/nl T6 and II3DIP54/65 T 80 C acc. to ATEX FM, CSA, GOST, JIS approvals T EN Fig. 5 Type Electropneumatic Positioner, attachment to NAMUR rib of Type 3271 Actuator Type Electropneumatic Positioner Single-acting or double-acting electropneumatic positioner for attachment to pneumatic control valves. Self-calibrating, automatic adaptation to valve and actuator. Simple one-knob, menu-driven operation LC display easy to read in any mounted position due to selectable reading direction Travel 3.75 to 200 mm Angle of rotation 24 to 100 Direct attachment to Type 3277 Actuator, to NAMUR ribs, rod-type yokes, VDI/VDE 3845 II2DIP65T80 Cacc. to ATEX II 3 G EEx na/nl II T6 and II3DIP54/65 T 80 C acc. to ATEX FM, CSA approval Two standard programmable position alarms T EN Fig. 6 Type Electropneumatic Positioner, attachment to rotary actuators acc. to VDI/VDE T 8350 EN
6 Type and Type Electropneumatic Positioner with HART communication Single-acting or double-acting electropneumatic positioner for attachment to pneumatic control valves. Self-calibrating, automatic adaptation to valve and actuator. EXPERT diagnostic functions. Travel 3.6 to 200 mm Angle of rotation 24 to 100 Direct attachment to Type 3277 Actuator, to NAMUR ribs, rod-type yokes, VDI/VDE 3845 Reference variable 4 to 20 ma Communication Type with HART communication II2DIP65T80 Cacc. to ATEX II 3 G EEx na/nl II T6 and II3DIP65T80 Cacc. to ATEX FM, CSA approval Extended EXPERTplus diagnostics, ESD version, inductive limit switch, position transmitter, solenoid valve with SIL 4 approval acc. to IEC 61508, external position sensor T EN Fig. 7 Type /-3 Electropneumatic Positioner with external position sensor mounted on Type 3510 Micro-flow Valve Type Positioner with PROFIBUS-PA communication and Type Positioner with FOUNDATION fieldbus communication Smart, bus-powered field devices according to PROFIBUS-PA or FOUNDATION fieldbus specification based on EN transmission technology. Travel 3.6 to 200 mm Angle of rotation 24 to 100 Communication s Direct attachment to Type 3277 Actuator, to NAMUR ribs, rod-type yokes, VDI/VDE 3845 Type with PROFIBUS-PA communication Type with FOUNDATION fieldbus communication II2DIP65T80 Cacc. to ATEX II 3 G EEx na II T6 and II3DIP65T80 Cacc. to ATEX FM, CSA, NEPSI Ex ia/nl approval Inductive limit switch, solenoid valve, binary input, external position sensor, EXPERT + T EN and T EN Fig. 8 Typ PROFIBUS-PA Positioner, attachment to rotary actuators acc. to VDI/VDE 3845 EXPERT + valve diagnostics for Series 3730 and Series 3731 Positioners Positioner firmware for early detection of control valve faults giving maintenance recommendations. EXPERT is an enhanced firmware designed for predictive, status-oriented maintenance on control valves with pneumatic actuators. The diagnostic functions are completely integrated into the positioner. EXPERT enables viewing and editing in TROVIS-VIEW operator interface or FDT/DTM engineering tools, which makes operation easy to learn. Refer to T 8388 EN for details. Fig. 9 Step response test for checking dynamic control response 6 T 8350 EN
7 Ex d positioners Type Ex d Positioner with HART communication Single-acting or double-acting Ex d positioner for attachment to pneumatic control valves. Self-calibrating, automatic adaptation to valve and actuator. Travel 3.6 to 200 mm Angle of rotation 24 to 100 Direct attachment to Type 3277 Actuator, to NAMUR ribs, rod-type yokes, VDI/VDE 3845 Reference variable 4 20 ma Communication HART communication II 2 G EEx d IIC T6 and EEx de IIC T6 and II2DIP65T80 Cacc. to ATEX FM, CSA, NEPSI approvals Binary contact, position feedback, forced venting, EXPERT + T EN Fig. 10 Type Ex d Positioner with HART communication or Type Positioner with FOUNDATION fieldbus communication Type Ex d Positioner with FOUNDATION fieldbus communication Smart, bus-powered field devices according to FOUNDATION fieldbus specification based on EN transmission technology. Integrated Function Blocks: PID Process Controller, Analog Output (AO), 2 Discrete Inputs (DI) and Link Master Capability. Travel 3.6 to 200 mm Angle of rotation 24 to 100 Communication Direct attachment to Type 3277 Actuator, to NAMUR ribs, rod-type yokes, VDI/VDE 3845 FOUNDATION fieldbus communication II 2 G EEx d IIC T6 and EEx de IIC T6 and II2DIP65T80 Cacc. to ATEX FM, CSA, NEPSI approvals Binary input, limit switch, forced venting, external position sensor T EN Fig. 11 Type 3731 Ex d Positioner, terminal compartment and cover for operating button opened TROVIS-VIEW Operator Interface TROVIS-VIEW is a standard operator interface, allowing the user to configure and parameterize various SAMSON instruments using a device-specific database module. Data is transferred between the TROVIS-VIEW software and the SAMSON device either directly using a connecting cable or infrared adapter or indirectly using a memory pen or memory module. A direct connection enables both online and offline operation. This means that data can be changed in the device immediately, or they can be saved on the PC first and later downloaded to the device on site. The device-specific modules contain a database providing the characteristic properties of each device type, such as parameters, data points, user levels, etc. Refer to T 6661 EN for details. Fig. 12 TROVIS-VIEW Operator Interface with Type 3730 Positioner 7 T 8350 EN
8 Electropneumatic and pneumatic positioners Type 3766 Pneumatic Positioner Type 3767 Electropneumatic Positioner Single- or double-acting p/p (Type 3766) or i/p (Type 3767) positioners for pneumatic linear and rotary actuators. Travel 7.5 to 120 mm Angle of rotation Up to 90 Direct attachment to Type 3277 Actuator, to NAMUR ribs, rod-type yokes, VDI/VDE 3845 Reference variable Type 3766: bar (3 15 psi) Type 3767: (0)4 20 ma II 3 G EEx na II T6 acc. to ATEX FM, CSA, GOST, JIS approvals Type 3766 also with IECEx TSA (Australia) approval or Ex d with Type 6116 i/p Converter Fig. 13 Type 3766 Positioner, attachment acc. to IEC (NAMUR) Limit switch, solenoid valve, position transmitter T 8355 EN Type 4763 Electropneumatic Positioner Type 4765 Pneumatic Positioner Single-acting electropneumatic (Type 4763) or pneumatic (Type 4765) positioner for pneumatic linear actuators. Travel 7.5 to 90 mm NAMUR ribs, rod-type yokes Reference variable Type 4763: (0)4 20 ma Type 4765: bar for Type 4763 Type 4765 II 3 G EEx na II T6 acc. to ATEX FM, CSA approvals Ex d with Type 6116 i/p Converter Special version with oxygen as operating medium T 8359 EN Fig. 14 Type 4763 Electropneumatic Positioner with pressure gauges Type 3760 Electropneumatic Positioner and Pneumatic Positioner Cost-effective, single-acting pneumatic or electropneumatic positioner designed for direct attachment to Type 3277 Pneumatic Actuator. Travel 5 to 15 mm Direct attachment to Type 3277 Actuator Reference variable bar (3 15 psi) (0)4 20mA,1 5mA II 3 G EEx na II T6 acc. to ATEX FM, CSA, JIS, AUS approvals Ex d with Type 6116 i/p Converter Limit switch T 8385 EN Fig. 15 Micro-flow valve with EEx d positioner (Type 3760 Positioner and Type 6116 Electropneumatic Converter) 8 T 8350 EN
9 Type 3761 Electropneumatic Positioner for rotary actuators Single-acting or double-acting pneumatic or electropneumatic positioner for attachment to rotary actuators. Angle of rotation Max. 90 According to VDI/VDE 3845 Reference variable bar (3 15 psi) or 4 20mA II 2 G EEx ia IIC T6 Limit switch T 8386 EN Fig. 16 Type 3761 Electropneumatic Positioner attached to Type 3278 Rotary Actuator 9 T 8350 EN
10 System 6000 Converters for direct current signal Type 6116 Electropneumatic Converter Devices used to convert a direct current input signal into a pneumatic output signal for measuring and control. Especially suitable as intermediate element between electric measuring devices and pneumatic controllers or between electric control devices and pneumatic control valves. The electropneumatic converter can be combined with various pneumatic positioners to provide a flameproof version. Input Output Supply air 4 20 ma bar ( psi) or bar ( psi) Special ranges available Min. 0.4 bar above upper signal pressure range II 2 G EEx d IIC T6 acc. to ATEX FM, CSA, GOST, JIS, AUS approvals Pressure gauge; extended temperature range T 6116 EN Fig. 17 Type 6116 Electropneumatic Converter mounted on Type 3766 Pneumatic Positioner Type 6151 u/i Module The Type 6151 u/i Module converts a DC voltage into a current signal. It is suitable for attachment to devices with an electrical connection according to DIN EN The standard housing connector or a special device connector for different versions may be used. Input Output Auxiliary power 0(2) 10 V 0(4) 20 ma V DC T 6151 EN Fig. 18 Type 6151 u/i Module 10 T 8350 EN
11 Limit switches, position transmitters The limit switches supply a signal when an adjusted limit value is exceeded in either direction. This signal is suitable for initiating visual or audible alarms as well as pilot valves or other switching units. Moreover, the limit switches can be connected to central control or alarm systems. Type 4746 Electric or Pneumatic Limit Switch Limit switch for attachment to pneumatic or electric control valves as well as for attachment to Type 4763 Electropneumatic Positioners or Type 4765 Pneumatic Positioners. Contacts Supply air 2 contacts optionally inductive, electric or pneumatic Actuators with cast yokes or rod-type yokes acc. to IEC Type 4763 Electropneumatic Positioner Type 4765 Pneumatic Positioner 1.4 bar for pneumatic limit switch II 3 G EEx na II T6, Zone 2 acc. to ATEX FM, CSA, GOST, NEPSI approvals T 8365 EN Fig. 19 Type 4746-x2 Inductive Limit Switch Type 3776 Limit Switch (SAMSOMATIC) Limit switch with inductive or electric contacts and solenoid valve for linear actuators or rotary actuators according to VDI/VDE Travel range Rotational angle mm or adjustable Contacts Max. 3 pieces inductive proximity switches, inductive double proximity switches or electric microswitches Solenoid valve Safety integrity level SIL 4 acc. to IEC or 2 integrated pilot valves Nominal signals 6/12/24 V DC or 24/115/230 V AC Supply air 2.2 to 6 bar Fig. 20 Type 3776 Limit Switch for linear actuators Direct attachment to Type 3277 and Type Actuators to actuators with NAMUR rib acc. to IEC Rotary actuators acc. to VDI/VDE 3845 with fixing levels 1 or 2 II 3 G EEx na II T6 acc. to ATEX GOST approval Integrated AS-Interface module with bus connection T 3776 EN Fig. 21 Type 3776 Limit Switch for rotary actuators according to VDI/VDE T 8350 EN
12 Type 3768 Inductive Limit Switch Limit switch with two inductive switches (proximity switches) and optionally one 3/2-way solenoid valve, which registers a binary signal issued by a control device and converts it into a binary signal pressure. When the solenoid valve is in de-energized state, the actuator moves the valve to the fail-safe position. Travel range Contacts Option mm 2 inductive proximity switches Direct attachment to Type 3277 Actuator to actuators with NAMUR rib acc. to IEC to rotary actuators acc. to VDI/VDE 3845 II 3 G EEx na II T6; Zone 2; acc. to ATEX FM, CSA, GOST, NEPSI approval 3/2-way solenoid valve T 8356 EN Fig. 22 Type 3768 Inductive Limit Switch Type Electronic Limit Switch Electronic limit switch for on/off applications to indicate the end position of rotary actuators. Optionally with integrated solenoid valve. Proven operation concept already used in Series 373x Positioners: Menu-driven, on-site operation using one rotary pushbutton, display easy to read in any mounting position. Additionally, communication connection for convenient parameter settings and documentation using TROVIS-VIEW software. Range of rotation Min. 0 30, max Sensor Contacts acc. to NAMUR IEC Solenoid valve Electric power supply Indications Wear-free magnetoresistive travel sensor A: Limit switch for fail-safe position B: Limit switch for operating position C: Signal when target range reached during advanced partial stroke test STAT: Status message or error message Using mounting platform acc. to VDI/VDE 3845, fixing level 2 External: 24 V DC, max. 18 W Internal: 3/2-way or 5/2-way-function Supplied over a two-wire system solely from the NAMUR signal LC display with reversible reading direction, LED for solenoid valve status II2GExiaIIC/IIB T6: Type II2Ge[ia] IIC T4: Type T 8390 EN Fig. 23 Type Electronic Limit Switch mounted on a piston actuator 12 T 8350 EN
13 Type 4744 Electric Limit Switch for hazardous areas Limit switch with one or two momentary-contact limit switches in type of Flameproof enclosure EEx de IIC T6. Type Limit Switch with one momentary-contact switch for mounting to a rod-type yoke of V2001 Series Valves Travel range mm Contacts Type 4744: 1 or 2 Type : 1 Type 4744: to actuators with NAMUR rib acc. to IEC Type : Rod-type yoke of V2001 Series Valves II 2 G EEx ed IIC T6 and II2DIP65T80 Cand II 2 G EEx de IIC T6 and II2DIP65T80 Cacc. to ATEX Type : II 2 G EEx d IIC T6/T5 GOST approval T 8367 EN Type 4748 Analog Position Transmitter Analog position transmitter for attachment to control valves as well as Type 4763 Electropneumatic Positioner or Type 4765 Pneumatic Positioner to convert the valve travel into a continuous output signal between 4 to 20 ma. Connection as two-wire transmitter. Fig. 24 Type 4744 Electric Limit Switch Fig. 25 Type Electric Limit Switch Travel range Output signal mm 4 20 ma to actuators with NAMUR rib or pillar-type yoke acc. to IEC Type 4763 Electropneumatic Positioner Type 4765 Pneumatic Positioner II 3 G EEx na II T6 Zone 2 acc. to ATEX T 8363 EN Fig. 26 Type 4748 Analog Position Transmitter 13 T 8350 EN
14 Accessories Type 3770 Ex d/ex i Field Barrier Field barrier with flameproof enclosure serving as an interface between intrinsically safe and non-intrinsically safe circuits in hazardous areas. The field barrier is suitable for operating positioners, smart positioners using HART protocol, electropneumatic converters, solenoid valves, or limit switches. Refer to T 8379 EN for more details. Type 3701 Solenoid Valve (SAMSOMATIC) The pilot-controlled solenoid valve converts electric binary signals into binary pneumatic signals. Solenoid valve 3/2-way or 5/2-way to actuators with NAMUR rib, rod-type yokes or to rotary actuators with NAMUR interface Fig. 27 Type 3770 Ex d/ex i Field Barrier with Type 3780 Positioner Nominal signal Supply air 6/12/24 V DC or 24/48/115/230 V AC bar (20 90 psi) II 2 G EEx ia IIC T6; Zone 1 and II 3 G EEx na II T6; Zone 2; acc. to ATEX CSA, FM approvals Safety approval SIL 4 or TÜV T 3701 EN Type 3963 Solenoid Valve (SAMSOMATIC) Solenoid valve series consisting of a 3/2-way pilot valve and diverse 3/2-way, 5/2-way or 6/2-way booster valves. Low power consumption between 20 and 150 mw. Fig. 28 Type Solenoid Valve Pilot valve Nominal signal Supply air Booster valve e/p binary converter 6/12/24 V DC or 24/48/115/230 V AC bar (20 90 psi) 3/2, 5/2, 5/3 or 6/2 function to actuators with NAMUR rib acc. to IEC or to rotary actuators with NAMUR interface acc. to VDI/VDE 3845 II 2 G EEx ia IIC T6 or II 3 G EEx na II T6 acc. to ATEX CSA, FM, GOST, NEPSI approvals SIL 4 acc. to IEC T 3963 EN Fig. 29 Type Solenoid Valve 14 T 8350 EN
15 Type 3962 Pilot Valve (SAMSOMATIC) The pilot valve is used to control booster or diaphragm valves as well as valves conforming to ISO 5599/1 with CNOMO interface. Construction Nominal signal Supply air For controlling Solenoid coil and seat valve with return spring 24 V DC or 24/115/230 V AC bar ( psi) Type 3756 Booster Valve ( T 756-1/5 EN and T EN) Type Diaphragm Valve ( T EN) Valves acc. to ISO 5599/1 with CNOMO interface to actuators with NAMUR rib acc. to IEC or to rotary actuators with NAMUR interface acc. to VDI/VDE 3845 EEx em T5/T6 or EEx d IIC T4/T5/T6 T EN Fig. 30 Type x04 EEx d Pilot Valve with Type 3756 Booster Valve Type 4708 Supply Pressure Regulator Supply pressure regulators provide pneumatic measuring and control equipment with a constant air supply. The pressure regulator reduces and controls the pressure of a compressed air network to the pressure adjusted at the set point adjuster. Versions for installation in pipelines or control panels or for direct attachment to positioners or pneumatic actuators. Set point range bar (8 90 psi) or bar (3 23 psi) Operating pressure Max. 12 bar (175 psi) Versions Aluminum or stainless steel body Filter Optionally with plastic, aluminum or stainless steel filter receptacle Adapter For attachment to positioners or pneumatic actuators Option Pressure gauge T 8546 EN Fig. 31 Type Supply Pressure Regulator with pressure gauge and filter Type with ½ connections and increased air capacity Fig. 32 Type Supply Pressure Regulator with ½ connection 15 T 8350 EN
16 Type x Service Unit Model (SAMSOMATIC) for purifying and controlling compressed air The service unit model is used to supply compressed air to pneumatic converters, controllers and positioners. It cleans the compressed air, removing any dirt particles, water and oil. In addition, it regulates the air pressure to a constant output pressure. Set point range bar (8 145 psi) adjustable Operating pressure Max. 16 bar (230 psi) Version Pipe or wall mounting Filter unit Coarse filter, submicro filter, pressure regulator with secondary venting, pressure gauge Condensate Automatic over float valve or solenoid valve drainage Pressure switch or differential pressure switch, solenoid valves T EN Fig. 33 Type x Service Unit Model Type Filter Regulator (SAMSOMATIC) The filter regulator is used to supply compressed air to volume boosters for large actuators. It cleans the compressed air, removing any dirt particles, water and oil. In addition, it regulates the air pressure to a constant output pressure. Set point range Operating pressure p 1 Version Filter unit Condensate drainage bar (8 145 psi) adjustable Max. 16 bar (230 psi) With mounting bracket Filter, pressure regulator and pressure gauge Manually over drainage valve T EN Type 3759 Pneumatic Remote Adjuster A precision pressure regulator which can be manually adjusted. It is designed for use in pneumatic control loops as either a set point adjuster or manual remote adjuster and can be used as an adjustable precision pressure regulator for measuring, calibration and testing equipment. Set point ranges bar (0 9 psi) bar (0 23 psi) 0 4 bar (0 60 psi) 0 6 bar (0 90 psi) Operating pressure p 1 Max. 7 bar (100 psi) Version Panel mounting or installation T 8510 EN Fig. 34 Type Filter Regulator Fig. 35 Type 3759 Pneumatic Remote Adjuster Type 3709 Pneumatic Lock-up Valve Pneumatic lock-up valve for shutting off the signal pressure line of pneumatic actuators upon failure of the supply air. Signal pressure Supply air Up to 6 bar (90 psi) Max. 12 bar (175 psi) T 8391 EN Fig. 36 Type 3709 Pneumatic Lock-up Valve 16 T 8350 EN
17 Type 3710 Reversing Amplifier The reversing amplifier allows double-acting pneumatic actuators to be operated using single-acting positioners. The positioner creates an output signal pressure Y 1, to which the air pressure Y 2 is added. The reversing amplifier uses the supply pressure Z as auxiliary power. The following rule applies: Y 1 + Y 2 = Z Supply pressure Threaded connections Ambient temperature range Degree of Max. 6 bar (90 psi) ISO 228/1-G ¼ or ¼-18 NPT C ( F) IP 65 Pressure gauge for Y 1 and Y 2 or a pressure gauge for Y 2 in conjunction with Type Supply Pressure Regulator T 8392 EN Fig 37 Type 3710 Reversing Amplifier with two pressure gauges Type 3755 Pneumatic Volume Booster The volume booster is used together with positioners to increase the positioning speed of pneumatic actuators. It supplies an air flow output at the actuator port whose pressure corresponds exactly with the signal pressure, except that it has a much higher volume output. Supply pressure Signal and actuator pressure Max. 10 bar (150 psi) Max. 7 bar (105 psi) Pressure ratio Signal to output = 1:1 Ambient temperature range 40 to 80 C ( F) Fig. 38 Type 3755 Pneumatic Volume Booster Flanged-on exhaust port NPT threads T 8393 EN 17 T 8350 EN
18 Specifications subject to change without notice. SAMSON AG MESS- UND REGELTECHNIK Weismüllerstraße Frankfurt am Main Germany Phone: Fax: Internet: T 8350 EN
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