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Edwards SP40K Speedivalve with Fluoroelastomer diaphragm | C33455000

Product Details

This Edwards SP40K Speedivalve is KF40 with an Fluoroelastomer diaphragm. It is used as an in-line, isolation valve in vacuum systems. The construction consists essentially of a flexible elastomeric dia­phragm which is sealed onto a lightly polished seat by a screw thread mechanism. The mechanism is isolated from the system by the diaphragm resulting in an extremely rugged and ‘dirty’ system tolerant valve.

This Edwards Speedivalve terminates in NW40 flange and is pipeline supported only.

Features and Benefits

  • Leak tight to better than 10-6 mbar ls-1 / 8 x 10-7 Torr ls-1
  • Diaphragm completely isolates mechanism from vacuum system
  • Extremely rugged and ‘dirty’ system tolerant
  • Will withstand 9 bar overpressure (SP10K to SP40K, with Co-Seal)

DigiVac can help you build out your vacuum system based on your particular application requirements. Call our technical sales team today. We offer a number of manual speedivalves available including a KF16 and KF25

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Technical Specifications

Construction materials
Body Aluminium alloy to BS1490
Hand wheel and bonnet Glass reinforced plastics
Diaphragms Nitrile or Fluoroelastomer
Leak rate (1 bar / 14.5 psi differential)
Valve (overall and across seat) 10-6 mbar ls-1
8 x 10-7 Torr ls-1
Coupling 10-7 mbar ls-1
8 x 10-8 Torr ls-1
Molecular conductance
  SP10K, SP16K 1.7 ls-1
  SP25K 9.0 ls-1
  SP40K 23.3 ls-1
Pressure rating using Co-Seal 9 bar / 131 psi
Ambient operating range 0 to 40 °C
Ambient storage range -10 to 40 °C
Panel thickness 3 mm / 0.117 in maximum
  SP10K 230 g / 8.1 oz
  SP16K 240 g / 8.4 oz
  SP25K 760 g / 26.6 oz
  SP40K 2300 g / 80.5 oz
Baking temperature
Edwards SP40K Speedivalve | C33455000
Edwards SP40K Speedivalve, Fluoroelastomer diaphragm, KF40 | C33455000