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Fakai Valve Factory Site: Yongxing Industrial Zone, Longwan District, Wenzhou City Tel: 0577-88767789
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Internally threaded swing check valve

Release Date: November 10, 2015

Overview of Female Threaded Swing Check Valves Female Threaded Swing Check Valves are precision cast valve bodies manufactured by our factory. The introduction of foreign advanced processing technology, reasonable structure, beautiful shape. The valve seat adopts an elastic sealing structure, which is easy to open and close and reliable. It is used to prevent the medium in the pipeline from flowing backward. Applicable media: water, oil, steam, acid media, etc.

Check valve
Internal threaded swing check valve working principle Internal threaded swing check valve uses a built-in swing arm swing check structure. All the valve's opening and closing parts are installed inside the valve body and do not penetrate the valve body, except for the middle flange. The parts are sealed with gaskets and seal rings, and there is no external leakage point as a whole, which prevents the possibility of leakage of the valve. Has been widely used in chemical, metallurgy, pharmaceutical and other fields.
Features of female screw-in check valve
1. Simple structure, small size and light weight.
2. The flow channel is unobstructed and the fluid resistance is small, and the valve flap can be fully opened under a small pressure difference.
3. Convenient maintenance, simple structure of ball valve, seal ring is usually movable, and it is more convenient to disassemble and replace.
4. Multiple thread types: G · NPT.BSPT.BSP DIN259 / 2999 is available.

Check valve
Application Specification for Internal Thread Swing Check Valves Nominal Pressure: 2.5MPa
Applicable temperature range: -20 ~ 232 ℃ ~ 350 ℃
Applicable medium: water, oil, gas and some corrosive liquids (WOG)
Thread type: G · NPT.BSPT.BSP DIN259 / 2999

Material of main parts of female thread check valve

Serial number

Part Name

Material

1

Valve body

Stainless steel CF8M / CF8

2

cap

Stainless steel CF8M / CF8

3

Rocker pin

Stainless steel 316/304

4

Disc

Stainless steel CF8M / CF8

5

Screw plug

Stainless steel 316/304

6

Plug washer

Teflon PTFE

Internal connection size and weight of swing check valve

SIZE

1/2 ″

3/4 ″

1"

11/4 ″

11/2 ″

2"

21/2 ″

3 ″

A

15

20

25

32

40

50

65

H

42

51

60

67

75

81

93

104

L

65

80

90

105

120

140

180

200