• Non-return Valve and stainless steel vacuum components

SMS 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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SMS Weld Non-return Valve | SMS Weld Non-return Valve

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Fig 1. Non-return valve
Fig 1. Non-return valve
Flow direction

Fig.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 direction Fig.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 diagram

Fig.2 NOTE For the following applies:
Medium:Water(20°C)
Measurement:In accordance with VDI 2173
Pressure drop/capacity diagram Fig.2 NOTE For the following applies: Medium:Water(20°C) Measurement:In accordance with VDI 2173
SMS Weld Non-return Valve
SMS Weld Non-return Valve

Designation

NO NAME
1 Body
2 Disc
3 Seal Ring
4 Spring
5 Plate
6 Ring
7 Clamp

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

SMS Weld Non-return Valve

Size ID
mm
OD
mm
L1
mm
L2
mm
DN25 22.1 25.4 23.5 35
DN38 35.5 38.0 28.5 45
DN51 48.5 51.0 28.5 45
DN63.5 60.3 63.5 28.5 45
DN76 72.9 76.1 28.5 45
DN104 100 104.0 42 75

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