Sorry, this family of products is no longer available. The replacement family of products is T2BA EtherCAT®, RS232, RS485, DeviceNet®, and Analog/TTL I/O Exhaust Throttle Valves with Integrated Controller.
253B Exhaust Throttle Valves
Overview
The 253B Exhaust Throttle Valve regulates the removal of gas from a processing system. Its flapper is positioned to modulate gas flow, thereby controlling process pressure. The 253 has a patented non-linear actuator placed between the flapper shaft and the motor drive shaft in order to generate a linear valve transfer characteristic and provide smooth linear pressure control.
Specifications
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Type253 Exhaust Throttle Valve
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Valve TypeButterfly/Throttle Valve
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Operating TemperatureStandard: 0 - 100°C
Optional: 0 - 150°C -
Valve Motor Ambient Operating Temperature-20 to 40°C
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Exposed Materials316L S.S., Viton®
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External Leak Rate1x10-8 scc/sec He (at shaft seal)
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Closed Leakage<10-7 (Torr l/s)
(valves with a flapper o-ring) -
Valve Speed1.7 sec (open to close)
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Drive Output TorqueStandard speed: 600 in-oz
High-speed: 170 in-oz
(with 651 Controller) -
Resolution1/12,000
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DriveDirect gear drive
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Differential Pressure Across Valve1 atm. (15 psig) max
Resources
Manuals
- 253B Throttling Valve Manual (0, PDF)
Ultra-High Velocity