Series WE20 Butterfly Valve - - Dwyer Instruments | Mercoid Controls

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Series WE20 Butterfly Valve

Loại sản phẩm: Đo độ ẩm Dwyer

Mã sản phẩm: ATD02

Nhà cung cấp:

Xuất Xứ:

Hãng sản xuất: Dwyer Instruments

Giá : Vui lòng liên hệ

Series WE20 Butterfly Valve

Lug or Wafer, EPDM or PTFE, Electric or Pneumatic Actuators

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The Series WE20 is offered in lug or wafer body styles and is equipped with a PTFE or EPDM liner. The most critical aspect of the Series WE20 Butterfly Valves is the cartridge seat design, which alleviates installation problems associated with common "dove tail design" seats. Valve torques are lower and more consistent as the seat dynamics are not dependent on being coupled between two flanges. Precision machining of the disc and body allow the cartridge design to maintain a tighter disc to seat tolerance, providing a perfect low torque seal each and every time the valve is cycled. The seat to disc seal is independent of flange support and capable of full rated dead end service. Actuators are directly mounted creating a compact assembly for tight spaces. Limit switches are able to be mounted directly to the valves allowing for remote position indication. The Series WE20 can be configured with either an electric or pneumatic actuator. Electric actuators are available in weatherproof or explosion-proof, a variety of supply voltages and two-position or modulating control. Two-position actuators use the supply voltage to drive the valve open or closed, while the modulating actuator accepts a 4-20 mA input for valve positioning. Actuators feature thermal overload protection and permanently lubricated gear train. The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports, with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve, and internally loaded springs return the valve to the closed position.

The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve and internally loaded springs return the valve to the closed position. Also available is the SV3 solenoid valve to electrically switch the air supply pressure between the air supply ports for opening and closing the valve. Actuators are constructed of anodized and epoxy coated aluminum for years of corrosion free service.

Model Chart

WE20-X-X-XXX-OPT   WE20 ELECTRIC BUTTERFLY VALVE

        1ST SYMBOL (1ST X) RANGE

           ATD02   2  IN ELECTRIC TWO-POSITION
           BTD02   2-1/2 IN ELECTRIC TWO-POSITION
           CTD02   3  IN ELECTRIC TWO-POSITION
           DTD03   4  IN ELECTRIC TWO-POSITION
           ETD04   5  IN ELECTRIC TWO-POSITION
           FTD04   6  IN ELECTRIC TWO-POSITION
           GTD05   8  IN ELECTRIC TWO-POSITION
           HTD06   10 IN ELECTRIC TWO-POSITION
           ITD07   12 IN ELECTRIC TWO-POSITION
           AMD02   2  IN ELECTRIC MODULATING
           BMD02   2-1/2 IN ELECTRIC MODULATING
           CMD02   3  IN ELECTRIC MODULATING
           DMD03   4  IN ELECTRIC MODULATING
           EMD04   5  IN ELECTRIC MODULATING
           FMD04   6  IN ELECTRIC MODULATING
           GMD05   8  IN ELECTRIC MODULATING
           HMD06   10 IN ELECTRIC MODULATING
           IMD07   12 IN ELECTRIC MODULATING
           ATH03   2  IN EXP ELECTRIC TWO-POSITION
           BTH03   2-1/2 IN EXP ELECTRIC TWO-POSITION
           CTH05   3  IN EXP ELECTRIC TWO-POSITION
           DTH05   4  IN EXP ELECTRIC TWO-POSITION
           ETH06   5  IN EXP ELECTRIC TWO-POSITION
           FTH08   6  IN EXP ELECTRIC TWO-POSITION
           GTH09   8  IN EXP ELECTRIC TWO-POSITION
           HTH10   10 IN EXP ELECTRIC TWO-POSITION
           ITH11   12 IN EXP ELECTRIC TWO-POSITION
           AMH03   2  IN EXP ELECTRIC MODULATING
           BMH03   2-1/2 IN EXP ELECTRIC MODULATING
           CMH05   3  IN EXP ELECTRIC MODULATING
           DMH05   4  IN EXP ELECTRIC MODULATING
           EMH06   5  IN EXP ELECTRIC MODULATING
           FMH08   6  IN EXP ELECTRIC MODULATING
           GMH09   8  IN EXP ELECTRIC MODULATING
           HMH10   10 IN EXP ELECTRIC MODULATING
           IMH11   12 IN EXP ELECTRIC MODULATING
        
        2ND SYMBOL (2ND X) BODY TYPE AND LINER OF BUTTERFLY VALVE
           WE      WAFER EPDM
           WP      WAFTER PTFE
           LE      LUG EPDM
           LP      LUG PTFE
          
        3RD SYMBOL (3RD X) ACTUATOR VOLTAGE (ELECTRIC ACTUATORS)
           N       NO SOLENOID
           A       110 VAC
           B       220 VAC
           C       24 VAC
           D       24 VDC

     

Series WE20 Butterfly Valve

Lug or Wafer, EPDM or PTFE, Electric or Pneumatic Actuators

Bookmark and Share

The Series WE20 is offered in lug or wafer body styles and is equipped with a PTFE or EPDM liner. The most critical aspect of the Series WE20 Butterfly Valves is the cartridge seat design, which alleviates installation problems associated with common "dove tail design" seats. Valve torques are lower and more consistent as the seat dynamics are not dependent on being coupled between two flanges. Precision machining of the disc and body allow the cartridge design to maintain a tighter disc to seat tolerance, providing a perfect low torque seal each and every time the valve is cycled. The seat to disc seal is independent of flange support and capable of full rated dead end service. Actuators are directly mounted creating a compact assembly for tight spaces. Limit switches are able to be mounted directly to the valves allowing for remote position indication. The Series WE20 can be configured with either an electric or pneumatic actuator. Electric actuators are available in weatherproof or explosion-proof, a variety of supply voltages and two-position or modulating control. Two-position actuators use the supply voltage to drive the valve open or closed, while the modulating actuator accepts a 4-20 mA input for valve positioning. Actuators feature thermal overload protection and permanently lubricated gear train. The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports, with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve, and internally loaded springs return the valve to the closed position.

The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve and internally loaded springs return the valve to the closed position. Also available is the SV3 solenoid valve to electrically switch the air supply pressure between the air supply ports for opening and closing the valve. Actuators are constructed of anodized and epoxy coated aluminum for years of corrosion free service.

Product Applications

WE20-X-X-XXX-OPT   WE20 PNEUMATIC BUTTERFLY VALVE

        1ST SYMBOL (1ST X) RANGE

           AHD00   2  IN HAND OPERATED
           BHD00   2-1/2 IN HAND OPERATED
           CHD00   3  IN HAND OPERATED
           DHD00   4  IN HAND OPERATED
           EHD00   5  IN HAND OPERATED
           FHD00   6  IN HAND OPERATED
           GHD00   8  IN HAND OPERATED
           HHD00   10 IN HAND OPERATED
           IHD00   12 IN HAND OPERATED
           ADA03   2  IN DOUBLE ACTING
           BDA03   2-1/2 IN DOUBLE ACTING
           CDA04   3  IN DOUBLE ACTING
           DDA05   4  IN DOUBLE ACTING
           EDA06   5  IN DOUBLE ACTING
           FDA07   6  IN DOUBLE ACTING
           GDA08   8  IN DOUBLE ACTING
           HDA09   10 IN DOUBLE ACTING
           IDA11   12 IN DOUBLE ACTING
           ASR04   2  IN SPRING RETURN
           BSR04   2-1/2 IN SPRING RETURN
           CSR06   3  IN SPRING RETURN
           DSR07   4  IN SPRING RETURN
           ESR08   5  IN SPRING RETURN
           FSR09   6  IN SPRING RETURN
           GSR10   8  IN SPRING RETURN
           HSR11   10 IN SPRING RETURN
           ISR11   12 IN SPRING RETURN
2ND SYMBOL (2ND X) BODY TYPE AND LINER OF BUTTERFLY VALVE
           WE      WAFER EPDM
           WP      WAFTER PTFE
           LE      LUG EPDM
           LP      LUG PTFE
3RD SYMBOL (3RD X) SOLENOID (PNEUMATIC ACTUATOR ONLY)
           N       NO SOLENOID
           A       NEMA 4X NAMUR SOLENOID
4TH SYMBOL (4TH X) SOLENOID VOLTAGE (PNEUMATIC ACTUATOR ONLY)
                   NO SYMBOL FOR ELECTRIC ACTUATORS
           N       NO SOLENOID
           A       110 VAC
           B       220 VAC
           C       24 VAC
           D       24 VDC
           E       12 VDC
OPTIONS (OPT) (PNEUMATIC ACTUATORS ONLY)
                   
         -NO       FAIL OPEN SPRING RETURN ACTUATOR

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