- Electropolished body with better than 25 Ra finish in diaphragm cavity
- Bubble tight shutoff
- Adjustable control ranges are 10, 25, 50, 100, 250 and 500 psig
- Proof pressure is 2 times maximum working pressure
- Burst pressure is 4 times maximum working pressure
- Weight: 1.1 lbs (0.50 kg)
- Mounting style is surface or panel (see Outline and mounting dimensions)
Maximum Temperature & Control Pressures
| Seat Material |
Maximum Temperature* |
|
Maximum Control Range |
| Viton® |
250° F (121° C) |
@ |
250 psig (1.72 MPa) |
| Kalrez |
300° F (148° C) |
@ |
250 psig (1.72 MPa) |
| Tefzel® |
175° F (80° C) |
@ |
500 psig (3.44 MPa) |
| Polyimide |
500° F (260° C) |
@ |
500 psig (3.44 MPa) |
* Temperatures in excess of 175° F (80° C) require the use of a metal knob or the Tamper Proof option
