253
Safety Relief Valves
Description:
For solar systems.
Working temp range: -20° - 360°F
Normal pressure: 150 psi
Opening over pressure: 10%
Closing differential: 20%
Discharge capacity: 171,000 Btu
Connections:
- Inlet, ½" female
- Discharge, ¾" female
Approval: TÜV certified to TRD-721-SV100 7.7
Meets: ANSI Z21.22 Standard
TÜV Rheinland is an approved U.S. Nationally Recognized Testing Laboratory (NRTL) Certification Body for Pressure Equipment. Meets ANSI Z21.22 "Relief Valves for Hot Water Supply Systems."
Downloads
Product Catalog
Technical brochure
Technical brochure
Declaration of conformity
idronics
Visio stencils
Certifications:
Drawings:
| code | description | weight (lbs) |
| 253042 | factory set to 35 psi | 0.3 |
| 253043 | factory set to 45 psi | 0.3 |
| 253044 | factory set to 60 psi | 0.3 |
| 253046 | factory set to 90 psi | 0.3 |
| 253048 | factory set to 120 psi | 0.3 |
| 253040 | factory set to 150 psi | 0.3 |