Product Code : VF--ZCC-A27-CU
Double lever safety valve
Product caliber: DN25-150
Product pressure: 0.6 ~ 10.0MPa
Manufacturing standards: China GB, JB, HG, API, ANSI, DIN, JIS, JPI, BS production. Body material: copper, cast iron, cast steel, carbon steel, WCB, WC6, WC9, 20#, 25#, forged steel, A105, F11, F22, stainless steel, 304, 304L, 316, 316L, chromium molybdenum steel, low temperature steel, titanium alloy steel, etc. Working pressure 1.0Mpa-50.0Mpa. Operating temperature: -196℃-650℃. Connection method: internal thread, external thread, flange, welding, butt welding, socket welding, sleeve, clamp. Driving mode: manual, pneumatic, hydraulic, electric
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double lever safety valve is an important pipeline protection device, often used to cut off the pipeline medium to ensure the safety of equipment, suitable for the temperature ≤450℃ power station boiler and pressure vessel to prevent the pressure from exceeding the maximum allowable value, the medium can be steam, air
Structure and working principle
The double lever safety valve works on the lever principle. It is characterized by horizontally placed levers hinged in turn on the valve disc, bracket and weight. The valve disc is close to the support, and the weight is far away from the support. When the force of the lever and the weight is transmitted to the valve disc, the valve seat is closed, so as to prevent the pressure equipment and vessel from bursting due to the internal pressure exceeding the limit
Double lever safety valves are widely used in various industrial fields where pressure control is required , especially in liquid and gas systems. Its main application areas include:
power station boiler and pressure vessel : The double lever safety valve is suitable for the power station boiler and pressure vessel whose temperature is less than or equal to 450℃, to prevent the pressure from exceeding the maximum allowable value. It can effectively prevent media such as steam and air under high pressure to cause equipment explosion
steam pipeline and hot water system : suitable for nominal diameter DN50mm~500mm steam pipeline and hot water system gas medium control occasions
Packing of Standard Packing
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 442 gallon liquid totes Special package is available on request. ATTs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
