The pressure relief valve (PRV) is a type of valve used to control or limit the pressure in a system or which can build up for a process upset, instrument or equipment failure, or fire. The pressure is relieved by allowing the pressurised fluid to flow from an auxiliary passage out of the system.
The pressure is relieved by allowing the pressurised fluid to flow from an auxiliary passage out of the system. The relief valve is designed or set to open at a predetermined set pressure to protect pressure vessels and other equipment from being subjected to pressures that exceed their design limits.
PRV size are available: 1/16” to 2” and 3mm to 50mm.
End connections are available in ODT / Screwed / Socket Weld / Flanged.
Clients need to suggest set pressure.
We can set pressure from 1 bar to 700 Bar.
We also have stock for 1/2'' NPT PRV.
High pressure & Low-pressure PRV are of a compact construction. Working temperature depending upon sealing material. Easy handling even at high pressure. Working pressure up to 100 to 1000bar depending on design Individual 100% pressure testing ensures safety. Various PRV are available. If the PRV are to be used for gas, oxygen or any other special application, please give full details when ordering with temperature and pressure. Other metallic finish on request. Are also manufactured in stainless steel, Brass and other material upon request.
Specifications/standards given in the following table are followed for threaded & Flanged end.
End Connection |
Reference Specifications |
NPT |
ASME B1.20.1, SAE AS71051 |
ISO/BSP Parallel |
ISO 228 |
ISO/BSP Tapered |
ISO 7, BS EN 10226-1 |
SAE (Unified) |
ASME B1.1 |
Flanged End |
ASME – B16.5 |
♦ Always use thread sealants on pipe threads. Do not apply sealant / PTFE on tube end.
♦ Always use O-rings / Gaskets with parallel threads.
All the PRV body & PRV component manufactured by us are ultrasonically cleaned and free from oil and other impurities.