V07
Miniature pressure relief valve
info@nortrade.ro | +40 31 425 17 06/07
info@nortrade.ro | +40 31 425 17 06/07
Pneumatic pressure relief valves protect compressed-air systems from over-pressurisation by automatically venting excess pressure once the set point is exceeded. Norgren offers five product families: the miniature V07 (G1/8–G1/4), the Excelon-series modular V72G/V74G (1/4–3/4 inch), the Excelon Plus V84G (3/8–3/4 inch), the Olympian Plus plug-in V64H/V68H (1/4–1 1/2 inch, with threaded relief port for piped exhaust) and the simple Watson-Smith 1002 / 61B2 pop-type valve (R1/4) for compact installations. Most ranges comply with category O (S.E.P.) and category 1 of the Pressure Equipment Directive 97/23/EC.
Miniature pressure relief valve
Excelon pressure relief valve
Excelon pressure relief valve
Excelon Plus pressure relief valve
Olympian Plus pressure relief valve
Olympian Plus pressure relief valve
Pop-type relief valve
Whenever the downstream system can be damaged or operators harmed by over-pressurisation. Most regulators have an internal relief that vents the chamber above the regulator only — a separate downstream relief valve protects the entire system, regardless of which component fails.
Typically right after the regulator (or the FRL stack), but before downstream components. On Olympian Plus systems, the V64H/V68H threaded relief port can be piped to a silencer or away from operators — important so that vented air does not blow onto people or sensitive equipment.
V-series valves (V07, V72G, V74G, V84G, V64H, V68H) are diaphragm-style with continuous, modulating relief and automatic reset. The 1002 / 61B2 pop-type is a simple poppet valve that snaps open at the set point and stays open until manually reset (pull-ring). Pop-type is cheaper, more rugged and gives a visible indication, but requires manual reset; V-series is the standard choice for most industrial systems.
Most V-series ranges (V72G, V74G, V84G, V64H) comply with category O (S.E.P.) and category 1 of the EU Pressure Equipment Directive 97/23/EC. The V84G additionally has ATEX 2014/34/EU DoC. Always check the specific datasheet for the model and configuration ordered.
