The 46 flange connection swing check valve for domestic traditional use has the disadvantages of large volume, large fluid resistance, high water hammer pressure during valve closing, difficult installation, difficult maintenance, short service life and the like. The valve supply net has the advantages of short structure, small volume, light weight, quick closing of the valve clack, small water hammer pressure, convenient installation and small fluid resistance, The invention has the characteristics of sensitivity, good sealing performance, short valve clack stroke, small impact force of the valve, simple and compact structure, long service life, high reliability and the like. The double-flap type check valve consists of a valve body, a valve clack, a valve rod and a spring. As the closing stroke of the valve clack is short and the spring is loaded, the closing speed is high, and the water hammer phenomenon can be obviously reduced. The product has the characteristics of small volume, light weight, sensitive action, reliable sealing, convenient installation and the like, can be installed horizontally or vertically, and can be applied to various media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and the like.
1/2" ~ 48"
(DN15 ~ DN1200)
Class 150 ~ 2500
(PN16 ~ PN1200)
-196℃ ~ +560℃
Water, Steam, Oil products, Nitric acid, Acetic acid
Carbon steel, Stainless steel, Alloy steel, Bronze
Design and Manufacture Stand: API 594
End to End Dimension Standard: API6D
Flange End Dimension Standard: ANSI B16.5
Inspection and Test Standard: API 598