Model 41-03 Pressure Relief, Sustaining, and Back Pressure Valve

Product Name: Model 41-03 Pressure Relief, Sustaining, and Back Pressure Valve
Size：DN50~DN500 Flange
DN50 Thread

Temperature: 0℃~100℃, Water

Features:
1. Accurate Pressure Control;
2. Optional Check Feature;
3. Fast Open to prevent damage;
4. Slow Close to avoid harmful water hammer;
5. Automatic Operation.

Application of Pressure Relief Valve:
To protect the system against high pressure surges when pumps are shut down, this fast opening – slow closing relief valve dissipates the excess pressure.

Application of pressure Sustaining Valve
When installed in a line between an upper zone and a lower area of heavy demand, the valve acts to maintain desired upstream pressure to prevent "robbing" of the upper zone.

Material：
Body：Ductile Iron or Stainless Steel
Scheme：Copper or Stainless Steel
Stem：Stainless Steel
Spring：Stainless Steel
Diaphragm：NBR

Pilot Specification：
Pressure Range：       0.1~5kgf/cm2，5~9kgf/cm2，
7~17 kgf/cm2。
Temp.：0℃~100℃，Water。
Material：Zinc Alloy or Stainless Steel

Safety/ Quality Approvals
ISO 9001 Certificate