Safety Relief Valves
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Catalog excerpts

Safety Relief Valves - 1

Safety relief valves The most effective protection against overpressure from 5 mbar to 45 bar / 0.07 psi to 650 psi SECURE YOUR SYSTEMS AND COMPONENTS WITH SAFETY RELIEF VALVES FROM WITT DAVID BREIL, SALES MANAGER – WITT-GASETECHNIK

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Safety Relief Valves - 2

PROTECTION AGAINST OVERPRESSURE WITT safety relief valves safeguard pipes, pressure vessels and system components from excessive gas pressure For operators of pressurised systems and components they are the last line of defense before excess pressure becomes a disaster: Safety relief valves. Safety relief valves from WITT provide effective protection against overpressure by blowing off vapours and gases from pipes, pressure vessels and system components. WITT offers individually tested safety relief valves with individually adjustable opening pressures from 5 mbar to 45 bar / 0.07 psi to...

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Safety Relief Valves - 3

› MATERIALS WITT safety relief valves are made from high-quality materials. They are extremely robust and suitable for a wide variety of gases and applications. Brass is normally the standard material used for housings in numerous applications. For aggressive and corrosive gases, the housings are made from high-quality stainless steel (1.4541/AISI 321, 1.4404/AISI 316L, 1.4305/AISI 303 or 1.4571/AISI 316Ti). Depending on the gas type and customer requirement, diverse sealing materials are available, ensuring safety even under the most demanding conditions. › CONNECTIONS You can order WITT...

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Safety Relief Valves - 4

> SV805 AND SV805A • A classic among WITT safety relief valves • Reliably protects tanks and pipes against excess pressure • Individual opening pressure between 0.5 and 45 bar / 7 psi and 652 psi • Maximum volume flow up to approx. 665 m3/h / 23,470 scfh for air • Compliant with Pressure Equipment Directive 97/23/EC • Compact size • Installation irrespective of position • Suitable for numerous applications • On request, also available with a condensate outlet • Model SV805A also has a ventilation function, allowing functionality testing at any time when installed • TUV individual...

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Safety Relief Valves - 5

> SPECIALIST IN HYDROGEN VEHICLES > AV319 • High safety in mini format - the AV654 is the smallest WITT safety valve • Also protects against lowest overpressures • Very sensitive response with individual opening pressure in the range from 10 to 80 mbar / 0.14 to 1.14 psi • Maximum blow-off volume of approx. 0.9 m3/h / 32 scfh for air • Minimum weight and compact dimensions • Ideal for applications in a closed space or with special weight requirements • Installation irrespective of position • TUV certificate varifies the individually set opening pressure on request > SV811L • Specially...

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Safety Relief Valves - 6

Single certification (Modul F) Manufactured and certified according to EN ISO 4126-1 AD 2000 bulletin A2 and VdTÜV-bulletin 100 Manual ventilation Inlet filter (optional) Opening pressure With condensation outlet Technical information Stainless steel Stainless steel Aluminium anodized

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Safety Relief Valves - 7

Single certification (Modul F) Stainless steel Manufactured and certified according to EN ISO 4126-1 AD 2000 bulletin A2 and VdTÜV-bulletin 100 Manual ventilation Stainless steel Inlet filter (optional) With condensation outlet Opening pressure Technical information Approved by the KraftfahrtBundesamt (German Federal 4,5 bar–45 bar Motor Transport Authority) 65 psi–652 psi for use in hydrogen-powered motor vehicles (according to Regulation (EC) 79/2009 and (EC) 406/2010) OUR PROMISE HIGH-QUALITY SAFETY TECHNOLOGY VERY GOOD PRICE/PERFORMANCE RATIO INDIVIDUAL SAFETY RELIEF VALVES AND SPECIAL...

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Safety Relief Valves - 8

OUR PRODUCT RANGE GAS CONTROL EQUIPMENT Gas mixing systems Gas metering systems Gas analysers Leak detection systems Gas pressure vessels Engineering of customised systems GAS SAFETY EQUIPMENT Flashback arrestors Non-return valves / check valves Quick couplers Safety relief valves Stainless steel devices Gas filters Pressure regulators Outlet points Lance holders Ball valves Automatic hose reels Test equipment Accessories Customised safety equipment Please contact us for partners in your country

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