• Non-return Valve and stainless steel vacuum components

Inch Size Weld Non-return Valve

Semi-conductor, pharmaceutical, Bio-technology, food processing, structural engineering

Everfit Technology CO., LTD. (EFT) is one of the stainless steel pipe fittings manufacturers based in Taiwan with over 36 years of experience. EFT provides 316, 316Ti stainless steel pipe fittings, pipe reducer, eccentric pipe reducer, vacuum pump, valve actuator - ISO, EN11435, DNV, TSSA CRN, BPE, 3-A SSI certified.

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Inch Size Weld Non-return Valve | Inch Size Weld Non-return Valve

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Fig 1. Non-return valve
Fig 1. Non-return valve
Flow directionFig.3. Show the optimal built-in situation.
Other positions permitted are e.g.
horizonal.The four guide legs of the valve cone
ensures good alignment.
Flow directionFig.3. Show the optimal built-in situation. Other positions permitted are e.g. horizonal.The four guide legs of the valve cone ensures good alignment.
Pressure drop/capacity diagramFig.2 NOTE For the following applies:
Medium:Water(20°C)
Measurement:In accordance with VDI 2173
Pressure drop/capacity diagramFig.2 NOTE For the following applies: Medium:Water(20°C) Measurement:In accordance with VDI 2173
Inch Size Weld Non-return Valve
Inch Size Weld Non-return Valve

Designation

NONAME
1Body
2Disc
3Seal Ring
4Spring
5Plate
6Ring
7Clamp

Technical Date

  • Required differential pressure for opening the valve when fitted in a vertical pipe, as shown in fig.3, is approx. 6kpa(0.06bar).
  • Max. product pressure: 1000kpa(10bar).
  • Max. temperature: 140°C(EPDM).
  • Min. temperature: -10°C.

Materials

  • Steel parts: Stainless steel AISI 304 or acid-resistant steel AISI 316l.
  • Seal ring: EPDM rubber.
  • Finish: Semi bright.

Connections

  • The valve is available with welding ends for
    tubes according to 3A,SMS,BS,DIN 11850.

Options

  • Material grades
  • A) Product wetted seal rings of nitrile(NBR) or Fluorinated rubber (FPM).

Ordering

  • Please state the following when ordering:
    • Size.
    • Steel garde, AISI 304 or AISI 316L.
    • Rubber garde if not EPDM.

Specification

Inch Size Weld Non-return Valve

SizeID
mm
OD
mm
L1
mm
L2
mm
1/2"9.512.73045
3/4"15.819.053045
1.0"22.125.423.535
1.5"34.838.128.545
2.0"47.550.828.545
2.5"60.363.528.545
3.0"72.976.228.545
4.0"97.6101.64275

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