The characteristics of pneumatic water seal gate valve, applications, standards and design ( 1)

4, name of main parts information product type parts of pneumatic valve, pneumatic valve cover, support pneumatic valve stem gate, pneumatic valve, sealing surface pneumatic valve seat sealing surface air valve stem nut filler alloy steel ( IWCBCrMolCrMoVA carbide cobalt base alloy aluminum bronze type flexible graphite carbon steel ( CWCBCr CrCr stainless steel or hard alloy stainless steel aluminum bronze flexible graphite

water seal brake pressure pneumatic valve is suitable for the work. ~。 MPa working temperature ~ ℃ fire power station backwater condensation system and on petroleum, chemical industry requirements and atmosphere insulated pipeline, & lt; Pneumatic water seal gate valve is suitable for the working pressure. ~。 MPa working temperature ~ ℃ fire power station backwater condensation system and on petroleum, chemical industry requirements and atmosphere insulated pipeline. Cut off or connect medium, applicable medium: water, oil, steam and non-corrosive gases.
usually adopt double ram two-way elastic seal; Products are simple, compact and reasonable structure, convenient maintenance, long service life; Piping for opening and closing device, a, characteristics and use S/Z series of opening and closing flexible, fast and reliable sealing. Required is in full open or full closed position, shall not be used to adjust flow; Pneumatic valve flange and welding machine has two connection way, drive mode for manual and electric and complicated structure. Pneumatic valves according to the sealing surface can be divided into the wedge disc brake pneumatic valve, pneumatic valve and parallel disc brake wedge disc brake pneumatic valve gate type single, double disc and flexible disc. Parallel disc brake pneumatic valve can be divided into single ram and double ram. According to the threads of the pneumatic valve stem position, can be divided into pneumatic rising stem gate valves and pneumatic non-rising stem gate valve two kinds.
2, pneumatic water seal gate valve design and manufacturing standards of design and manufacturing: GB flange dimensions: GBJB pressure temperature: JB/TGB structure length: GB/T test and test: JB/TGB
3, the main performance specifications of nominal pressure ( MPa shell strength test. 。 。 。 。 。 Sealing test. 。 。 。 。 。 The sealing test. 。 。 。 。 。 Gas seal test. 。 。 。 。 。 Scope of product type is used for temperature ( ℃ for medium carbon steel type or less water, steam, oil, non corrosive gas alloy or less