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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
View All Product Images
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
View All Product Images
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