PR-7LF Series High Sensitivity Pressure Reducing Regulator
General Details
The PR-7LF Series pressure reducing regulator is designed to furnish precise low outlet pressure control to analytical instrumentation. With the combination of the large diaphragm sensing area of the PR-7 Series regulator and the low flow seat assembly of the PR-1 Series pressure regulator, pressure control down to 10 inches of water is easily obtainable.
Features
- Gas or liquid service
- 316L stainless steel or Brass (alloy 360) construction
- PTFE/Viton® diaphragm
- Electropolished body (316L) with better than 25 Ra finish in diaphragm cavity
- 20 micron inlet filter
- Bubble tight shutoff
- Outlet pressure ranges are 6, 25, 50, 75, and 125 psig
- Proof pressure is 2 times maximum working pressure
- Burst pressure is 4 times maximum working pressure
- Weight: 3.2 lbs (1.45 kg)
- Mounting style is surface or panel (see Outline and mounting dimensions)
Maximum Temperature & Control Pressures
| Seat Material | Maximum Temperature* | Maximum Operating Inlet Pressure | |
| PTFE | 150º F (66º C) | @ | 3600 psig (24.82 MPa) |
| Tefzel® | 150º F (66º C) | @ | 3600 psig (24.82 MPa) |
| PCTFE | 175º F (80º C) | @ | 3600 psig (24.82 MPa) |
| Viton® | 250º F (121º C) | @ | 300 psig (2.07 MPa) |
| Kalrez® | 250º F (121º C) | @ | 300 psig (2.07 MPa) |
* Temperatures in excess of 175º F (80º C) require the use of a metal knob or the Tamper Proof option
Documents