The Original Double Seat Valve

The Original Double Seat Valve / Everfit Technology CO., LTD. (EFT) is a vacuum component, vacuum fitting, processing equipment and system provider with almost 50 years of experience.

The Original Double Seat Valve
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The Original Double Seat Valve

The Original Double Seat Valve

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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Vacuum Component | The Original Double Seat Valve Manufacturer - EFT

Based in Taiwan, EVERFIT TECHNOLOGY CO., LTD. is a The Original Double Seat Valve | vacuum component supplier for various industries, including semi-conductor, pharmaceutical, bio-technology, cosmetics, food processing and structural engineering. Main product: 316Ti Stainless steel pipe, progressing cavity pump part, pipe tee fitting, valve actuator component, diaphragm valve, ferrule, KF flange, etc.

5,500 square meter plant, cleanroom (class 10,000) and ultra-pure water system to deliver the cleanest pipe fittings. Between the robot arm and adjustment of fixture and jig, EFT is moving toward to becoming a manufacturer of pipe fittings with high technology.

EFT has been offering customers high-quality stainless steel vacuum components since 1976, both with advanced technology and 47 years of experience, EFT ensures each customer's demands are met.

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