CH8 Series High-Temperature Pneumatic Valves, 1/2" Orifice, 2-way , Normally Open Tube
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Notes:
- Not all configurations are permitted. Contact Entegris if multiple special order features are required.
- Contact Entegris if “SpaceSaver” port connections are to be used in media containing a fluorinated surfactant.
- Pillar nuts, inserts and gauge rings included as standard.
- High-temperature, ultrapure and corrosive chemical handling
- Photoresist stripping applications with high temperature sufuric and phosphoric acid
- Wet etch and clean (WEC) process chemical applications
- Chemical line sizes in 1/4" and 1/2" pipe, 1/2" and 3/4" tube
Specifications
Port Connection | Flow Factor CV | Flow Factor KV | Dimensions | ||
A | B | C | |||
1/4" PureBond1 | 1.8 | 25.7 | 4.76" (120.9 mm)1 | 0.69" (17.5 mm) | 3.97" (100.8 mm) |
1/2" Super 300 Type Pillar fitting | 2.4 | 34.3 | 4.06" (103.1 mm) | 0.69" (17.5 mm) | 3.97" (100.8 mm) |
1/2" PrimeLock | 2.4 | 34.3 | 4.22" (107.2 mm) | 0.69" (17.5 mm) | 3.97" (100.8 mm) |
1/2" PureBond1 | 3.2 | 45.7 | 4.76" (120.9 mm)1 | 0.94" (23.9 mm) | 4.22" (107.2 mm) |
3/4" Super 300 Type Pillar fitting | 3.4 | 48.6 | 4.44" (112.8 mm) | 0.94" (23.9 mm) | 4.22" (107.2 mm) |
3/4" PrimeLock | 3.4 | 48.6 | 4.76" (120.9 mm) | 0.94" (23.9 mm) | 4.22" (107.2 mm) |
1For CH8 valves with tube pilot port configurations and PureBond weld lengths less than standard, we recommend rotated tube pilot ports. Contact Entegris to order alternate pilot port orientations.
Remote Position Indication Option (shown in 5th drawing above)
A remote position indication option is available to monitor valve open and close positions electronically.
Note: To enable the remote position indication option you must order the Omron® sensor (-OM) on the valve. In addition, order the Omron Position Sensor indicator (EE-SX771R or EE-SX771A), which are sold separately.
Restricted Open/Closed (shown in 6th drawing above)
Note: Height dimension includes stem in open position
- Restricted open option allows for a manual variable limit control on the open travel of a pneumatically controlled valve
- Restricted closed option allows for a manual variable limit control on the closed travel of a pneumatically controlled valve
- Both options are offered in normally closed and normally open pneumatic actuators
Materials: | |||
All wetted parts | PFA, PTFE | ||
Exterior actuator parts | PVDF, Viton® | ||
Interior actuator parts | PVDF, SST, Viton®, PTFE | ||
Mounting base | PVDF | ||
Operating conditions: | |||
Media pressure at | 21°C (70°F) | Inlet /outlet | 913 mbar (27” Hg) vacuum to 552 kPa (80 psig)1 |
200°C (392°F) | Inlet /outlet | 206.9 kPa (30 psig)1 | |
Actuation pressure | 414 – 552 kPa (60 – 80 psig) | ||
Temperature range | Ambient | 21°– 50°C (70°–122°F) | |
Fluid | 21° - 200°C (70° - 392°F) | ||
Pneumatic supply port: | 1/4" tube stub | ||
Environmental compliance: | RoHs, WEEE |
1Actual valve performance varies with pressure and temperature; refer to actual ratings in performance data.
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CH8-2UT-RKIT
Repair kit for 1/2" CH8 Series high-temperature, pneumatic, normally open, tube valves