IBR Approved POP Type Screwed Safety Valve

Overview

An IBR-approved pop-type safety valve designed to protect systems from overpressure conditions. The pop-type mechanism opens suddenly to release excess pressure and reseats tightly once pressure returns to safe levels. Built with WCB/CF8/CF8M body and metal-to-metal seat for steam and high-temperature service up to 300°C, with screwed end connection and adjustable set pressure across 0 to 20 BAR. Supplied, set and serviced for steam systems across Nepal.

Features & Benefits

• ✓The pop-type action gives a sudden, full-lift opening once set pressure is reached rather than a gradual crack-open, which discharges large volumes fast — essential for steam systems where pressure can build rapidly and a slow-opening valve would not relieve quickly enough.
• ✓IBR approval is legally required for safety valves on boiler-connected steam systems, so this certification is not just a quality marker but a compliance prerequisite for the target market.
• ✓Metal-to-metal seat withstands the thermal cycling and high temperature of steam service better than soft seats, which would degrade and lose reseat tightness over repeated lift events.
• ✓Adjustable set pressure across 0 to 20 BAR lets one valve model cover a wide range of system pressures, with high-pressure variants available on request for demanding applications.
• ✓Clean reseating after relief prevents continuous leakage (simmer) once the overpressure clears, which conserves steam and avoids the seat erosion that comes from prolonged partial flow.
• ✓Screwed end connection suits small-bore boiler mountings and branch lines up to 100MM where flanged connections add unnecessary cost and weight.
• ✓WCB/CF8/CF8M material options let the same design serve carbon steel steam systems or stainless-required corrosive and clean-service applications without redesign.