4" NPT Horizontal Check Valve, Brass Non Return Swing Check Valve to
Prevent Water Backflow, Level One Way Counterflow Valve to Prevent the Medium Backflow for Oil Water Gas Air（4", DN100）USD $115.59
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- ONE WAY FLOW CONTROL -- It is a kind of valve that relies on the pressure of the medium to produce the effect of preventing the backflow of the medium. Only allows the medium to flow in one direction, to prevent the medium backflow.
- EXPLOSION-PROOF & WEAR-RESISTANT -- The valve body is characterized by pressure, explosion resistance and durability... It has uniform wall thickness, high wear-resistant strength and long service life.
- SUPERB CRAFTSMANSHIP -- The brass check valve inner wall polishing treatment, smooth surface, no scaling, no clogging, practical and durable.
- WIDE RANGE OF USES -- A variety of specifications are available for most piping systems. Widely used in chemical, construction, petroleum, light and heavy industry, fire fighting, electric power, aerospace, shipbuilding ...
- INSTRUCTION -- Maximum working pressure: 1.6 MPa / 232.06 psi. Applicable temperature: FROM -20℃ TO +150℃（FROM -4℉ TO 302℉）, Flow direction: unidirectional, media range: water, oil, non-corrosive flammable gas. Please select the appropriate size horizontal check valve according to the size chart.
- Color: Yellow
- Size: 4 Inch
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