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Where can I buy this type of low-pressure safety valve

2009-04-10View Original

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Does anyone know which company’s low-pressure safety valve can meet the requirements: set pressure of 0.116 MPa, an overpressure of 21%, i.e., 0.119 MPa, temperature of 50°C, and the medium being liquid resin?
Reply #22009-04-10
This type of safety valve is nothing special either; a micro-opening safety valve designed for liquids will suffice to meet your needs. Just do a search online – there are many manufacturers that can produce them.
Reply #32009-04-10
Is there a safety valve that can lift a 200mm water column?
Reply #42009-04-10
I searched online, but still couldn’t find one that meets the requirements. The safety valve is required to have a set gauge pressure of 0.015 MPa, with a discharge pressure of 20%; it should also start discharging when the pressure exceeds approximately 0.002 MPa (with only 0.02 kg of flow rate). It’s really difficult to find such a valve!! Which company manufactures safety valves with these specifications?
Reply #52009-04-10
The low-pressure safety valve (dust breather valve) is a safety protection device suitable for low-pressure containers handling dust-based media. The under-pressure safety valve consists of a dust collector, an exhaust valve, and an intake valve. Nominal pressure: PN 0.25 Mpa; Nominal diameter: DN 300mm. Applicable medium: Air (with dust); Operating temperature: ≤90℃. Main materials: The housing is made of aluminum alloy, the internal components are made of carbon steel, and the valve seat seal is made of Stellite/soft seal. Product standard: Q/(JB)DF04. Parameters for breathing action: Opening pressure of the exhaust valve/inlet valve, Pk: 200±20mmH2O; Opening vacuum level, Pk: 100±20mmH2O; Discharge pressure: ≥1.1Pk; Full-opening vacuum level: ≥1.1Pk; Seal testing pressure: 0.75Pk. Opening height: ≥25mm
Reply #62009-04-10
It is recommended to use the pressure transmitter in conjunction with a pneumatic valve for better results

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