Introduces the multifunctional water pump control pneumatic valve's standard technical specification 1

the peace of diaphragm material should comply with the regulations of GB/T. When applied to drinking water.
multifunctional water pump control pneumatic valve technical specification is applicable to the various specification of nominal pressure for PN. MPaPN。 MPa nominal diameter for DNmmDNmm multi-function water pump control pneumatic valve.
now will introduce technical requirements specification is as follows:
. Pressure - Temperature degree level
multifunctional water pump control pneumatic valve pressure - Temperature level by shell, internal parts and material stress control tube system - Determine the temperature level. Multifunctional water pump control pneumatic valve at a certain temperature, the maximum allowable working pressure from shell in a pipe system and control material in the maximum allowable working pressure temperature value of little value.
iron shell pressure - Temperature rating shall comply with GB/T. Rules.
steel casing pressure - Temperature level should comply with the regulations of GB/T.
according to the provisions of the relevant specification or design. For GB/T. GB/T provision of the pressure - Temperature rating data.
。 Pneumatic valve pneumatic valve flange

technical conditions should comply with GB/T. Provisions; Steel flange type and size should comply with GB/T. Regulation, the flange should be pneumatic valve body and the whole. Steel flange type and size should comply with GB/T. Rules. Technical conditions should comply with the regulations of GB/T. Pneumatic valve body, the minimum wall thickness

the minimum wall thickness of casting steel pneumatic valve body should comply with the regulations of JB/T table. Cast iron pieces of pneumatic valve body, the minimum wall thickness should comply with the regulations of GB/T table.
。 Pneumatic valve diaphragm seat cover
pneumatic valve cover and the diaphragm, diaphragm and pneumatic valve connection type flange should be adopted.
diaphragm with pneumatic valve shall not be less than the number of connecting bolts.
pneumatic valve cover and the minimum wall thickness according to the diaphragm. Requirements.
pneumatic valve cover and diaphragm flange should be circular. Flange sealing surface model can be used flat, tu surface or concave and convex.
。 Pneumatic valve stem, slow breath pneumatic valve plate, the main valve plate
slow breath pneumatic valve plate and valve stem should tighten, reliable connection.
slow breath pneumatic valve plate and the main valve plate seal type of metal seal model should be adopted.
the main pneumatic valve plate and valve stem must be sliding flexible and reliable.
the main pneumatic valve plate and the main pneumatic valve plate seal can be used for sealing metal and nonmetal seal two type.
。
diaphragm of diaphragm performance should comply with the regulations of table please turn over.
the appearance quality of the diaphragm should comply with the regulations of HG/T.