653B Exhaust Throttle Valves with High-Speed Motor/Gear Assembly

The 653B features a high speed motor and gear/driver assembly to provide a fast response to a given set point to quickly achieve desired pressure and increase system throughput. High accuracy is attained by microstepping the flapper to give more precise control, and no drift, of pressure at the desired set point. The 653 has sufficient torque to operate sealing valves up to four inches and non-sealing valves to 12 inches to prevent clogging from contamination build-up.

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Showing 10 of 15 total products

Description	Compatibility	Flange Type	Flange Size	Nominal Inside Diameter	Price
653B-1-40-1Exhaust Throttle Valve, High Speed, 1.27 in. ID, NW40 ISO-KF, Flapper O-ring	UNIVERSAL	ISO-KF	NW40	1.270 in. (32 mm)	$3,526
653B-1-40-2Exhaust Throttle Valve, High Speed, 1.27 in. ID, NW40 ISO-KF	UNIVERSAL	ISO-KF	NW40	1.270 in. (32 mm)	$3,526
653B-10-250-2Exhaust Throttle Valve, High Speed, 9.70 in. ID, NW250 ISO-MF	UNIVERSAL	ISO-MF	NW250	9.700 in. (246 mm)	$8,024
653B-2-50-1Exhaust Throttle Valve, High Speed, 1.886 in. ID, NW50 ISO-KF, Flapper O-ring	UNIVERSAL	ISO-KF	NW50	1.886 in. (48 mm)	$3,891
653B-2-50-2Exhaust Throttle Valve, High Speed, 1.886 in. ID, NW50 ISO-KF	UNIVERSAL	ISO-KF	NW50	1.886 in. (48 mm)	$3,891
653B-20-40-1Exhaust Throttle Valve, High Speed, 0.779 in. ID, NW40 ISO-KF, Flapper O-ring	UNIVERSAL	ISO-KF	NW40	0.779 in. (20 mm)	$3,526
653B-20-40-2Exhaust Throttle Valve, High Speed, 0.779 in. ID, NW40 ISO-KF	UNIVERSAL	ISO-KF	NW40	0.779 in. (20 mm)	$3,526
653B-3-80-1Exhaust Throttle Valve, High Speed, 2.886 in. ID, NW80 ISO-MF, Flapper O-ring	UNIVERSAL	ISO-MF	NW80	2.886 in. (73 mm)	$4,288
653B-3-80-2Exhaust Throttle Valve, High Speed, 2.886 in. ID, NW80 ISO-MF	UNIVERSAL	ISO-MF	NW80	2.886 in. (73 mm)	$4,288
653B-4-100-1Exhaust Throttle Valve, High Speed, 3.885 in. ID, NW100 ISO-MF, Flapper O-ring	UNIVERSAL	ISO-MF	NW100	3.885 in. (99 mm)	$4,620

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Specifications

Type
653B Exhaust Throttle Valve with High-Speed Motor/Gear Assembly
Valve Type
Exhaust Throttle/Butterfly Valve
For Use With
651, 1651 Flow Valve Controllers
Operating Temperature
Standard: 0 - 100°C
Optional: 0 - 150°C
Valve Motor Ambient Operating Temperature
-20 to 40°C
Exposed Materials
316L S.S., Viton®
External Leak Rate
1x10^-8 scc/sec He at shaft seal

Closed Leakage
<10-7 (Torr l/s)
(valves with a flapper o-ring)
Valve Speed
1.7 sec
Drive Output Torque
800 in-oz
Resolution
1/12,000
Drive
Direct gear drive
Differential Pressure Across Valve
1 atm. (15 psig) max.

Accessories

Other Accessories

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		CB652-1-10Throttle Valve Cable, 651 Controller to 653 Valve, 10 ft.	UNIVERSAL			$231

Resources

Manuals

653B Exhaust Throttle Valve Manual(172.1 kB, PDF)
653B Exhaust Throttle Valve Pin-outs(22.3 kB, PDF)