The characteristics of pneumatic water seal gate valve manufacturing standard 2)

pneumatic valve sealing work pressure. 吗? 。 MPa working temperature? ℃ fire station condensate recovery system and oil pipe and air separation and chemical aspects of the requirements. Applicable medium: oil, water, steam and non corrosive gas. First, the characteristics and USES, at ordinary times two-way double plate elastic seal; - / Z series opening and closing flexible, fast, reliable sealing.
, the product structure is simple, compact, is reasonable, easy maintenance, long service life; Necessary, fully open or fully closed position, and equipment for the opening and closing ceremony of the pipeline. Shall not be used to adjust flow; Driving mode for manual, electric, more complex structures.
with flange connections and welding of two pneumatic valves. Single wedge gate type pneumatic valve type, door type double plate and elastic. Pneumatic valve in accordance with the sealing surface configuration can be divided into pneumatic wedge type gate type gate valve and parallel disc type pneumatic valve. Parallel disc brake pneumatic valve can be divided into single ram and double ram. Non-rising stem brake pneumatic valve, pneumatic valve can be divided into non-rising stem gate two. Location divided by pneumatic valve stem threads.
2, sealed pneumatic valve design and manufacturing standards of design and manufacturing: GB flange dimensions: GBJB pressure and temperature: JB/TGB structure length: GB/T inspection and testing: JB/TGB three, the main performance index rated pressure ( MPa shell strength test. 。 。 。 。 。 Sealing test. 。 。 。 。 。 The sealing test. 。 。 。 。 。 Gas seal test. 。 。 。 。 。 Product type temperature range ( ℃) In carbon or less water, steam, oil, no corrosive gas alloy type 4 or less, the major parts material part name product model of pneumatic valve, pneumatic valve cover, support dry door, pneumatic valve seat sealing surface sealing, pneumatic valve, pneumatic valve stem seal nut surface alloy steel ( IWCBCrMolCrMoVA cobalt base alloy aluminum bronze alloy type flexible graphite carbon ( CWCBCr CrCr stainless steel stainless steel or aluminum bronze alloy flexible graphite