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Internal thread globe valve S type
Internal thread globe valve S type
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Internal thread globe valve S type

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Product description
Parameters

  Features
  -1/Z~2, (DN15-DN50)
  - W.P,: 200WOG (PN16)
  - W.T.:425*C
  一 Investment casting
  - Rising stem
  - Thread end: ASME B 1.20.1 (NPT),
  DIN 259/DIN 2999, BS 21,
  ISO 288-1, ISO 7-1
  - Socket weld end: ASME B16.11

Internal thread globe valve operating principle

1. When the handwheel is turned clockwise, the valve stem moves downward, and the valve disc descends to make the sealing surface close and cut off the passage. When it is reversed, it opens, and the valve stem lifts to the point where the seal works.

 

2. An upper seal is added to the valve. When the valve is open, it has a two-layer sealing effect together with the packing, and has a certain protective effect on the packing.

 

3. The valve adopts nylon product as the sealing surface, the packing is soft formed packing, the upper seal is also made of soft material, and the sealing performance is good.

 

The structural forms of the internal thread globe valve body are straight-through type, direct-current type and right-angle type. Straight-through is a common structure, but its fluid resistance. The direct-flow fluid resistance is small, and it is mostly used for fluids containing solid particles or high viscosity. The right-angle valve body is mostly forged, which is suitable for the globe valve with smaller passage and higher pressure.

 

  Material List

 

 

No. PARTS MATERIAL
1 BODY WCB CF8 CF8M
2 DISC CF8 CF8 CF8M
3 STEM 304 304 316
4 GASKET PTFE
5 BONNET WCB CF8 CF8M
6 WASHER 304 304 316
7 PACKING PTFE
8 GLAND 304
9 BONNET NUT WCB CF8 CF8M
10 HANDWHEEL ZL101
11 TO FLAT PAD 304
12 NUT 304

 

  Dimensions

 

 

SIZE d L H W D J
1/2' DN15 15 60 88 70 21.8 9.5
Mar-41 DN20 20 70 93 70 27.2 12.5
1' DN25 25 80 110 70 33.9 12.5
1-1/4' DN32 32 89 116 80 42.7 12.5
1/1/2021 DN40 40 104 132 100 48.8 12.5
2' DN50 50 118 145 100 61.2 16
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Wenzhou Kaishimu Valve Industry Co., Ltd.

Building 2, No. 696, Binhai Fifth Road, Wenzhou Economic and Technological Development Zone, Zhejiang

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Wenzhou Kaishimu Valve Industry Co., Ltd.
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