• The Original Seat Valve and stainless steel vacuum components

The Original Double Seat 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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The Original Double Seat Valve | The Original Double Seat Valve

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The Original Double Seat Valve
The Original Double Seat Valve
The Original Double Seat Valve
The Original Double Seat Valve
Double Valve Body Combination
Double Valve Body Combination

The Original Double Seat Valve

Caution, opening/closing time:

  • Opening/closing time will be effected by the following:
  • The air supply(air pressure).
  • The length and dimensions of the air hose.
  • Number of valves connected to same air hose.
  • Use of single solenoid valve for serial connected air
  • actuator functions.
  • Product pressure.

Air connections

  • Compressed air: R1/8"(BSP), internal thread.

Designation

NOPART NAMEQTYMATERIAL
1Piston1SUS 304
2Cyinder1SUS 304
3Spring assembly1SUS304
4O-ring1NBR
5O-ring1NBR
6Bracket1SUSB04
7O-ring1NBR
8O-ring1NBR
9Lock wire clip1SUS 304
10Stop ring1PE
11Clip complete1SUS 420
12Stem1SUS 316
13Seal ring2EPDM
14Middle piece1SUS 316
15Washer1SUS 316
16O-ring1O-ring
17Screws1SUS316
18Lip seal-EPDM1EPDM
19Valve body-upper1SUS 316
20Valve body-lower1SUS 316
21Valve body seal ring1EPDM
22Clamp2SUS 304
23Air connection1Cupper
24Air outlet filter1Cupper

Technical Date

  • Max. product pressure (depending on valve specifications): 1000kpa(10 bar)
  • Min. product pressure: full vacuum.
  • Temperature range: 10°C to +140°C(EPDM)
  • Air pressure: 5 to 7 bar.

Materials

  • Product wetted steel parts: Steel AISI 316L.
  • Finish: Semi bright.
  • Other steel parts: Stainless steel AISI 304.
  • Plug stem : AISI 316L with hard chrome planted stemm surface.
  • Product wetted seals: EPDM rubber.
  • Other seals: NBR.

Ordering

Please state the following when ordering:

  • Size.
  • Connections if not welding ends.
  • Valve body combination.
  • Actuator function, NC, NO, or A/A.
  • Options.

Specification

SizeID
mm
OD
mm
A0
mm
A1
mm
A2
mm
ØD
mm
C
mm
E1
mm
E2
mm
t
mm
L/Clamp
mm
L/SMS Male
mm
L/IDF Male
mm
L/RJT Male
mm
25.422.125.4202142586055.650.5381.6521.51921.521.5
38.134.738.12872542687806068.51.6521.52321.521.5
50.847.550.836125454879268.568.51.6521.52321.521.5
63.560.263.5385254938710879821.6521.52721.521.5
76.172.976.145332581133128103.5103.51.6521.52721.521.5
101.697.6101.648132630133148103.5103.5221.5303030

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