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PV25PKA

Activair.cz > Products > Vacuum valves > Pneumatic valves > Pneumatic valve PVPK > PV25PKA
PV25PKA - Pneumatic valve PVPK

The range of single acting cylinder, spring return pipeline valves is designed for high speed actuation from standard pneumatic lines, and are offered in sizes NW10, 16, 25, 40 and 50. The NW16, 25, 40 and 50 versions of the valve are available in both right-angle and in-line styles, to give you more options when you design your vacuum system.

The valves are designed for long life duties, with a MTTF of 5000000 cycles for both bellows and ‘O’ ring sealed versions providing long intervals between services.

Features and Benefits

  • Improved lifetime, mean-time-to-failure now 5000000 cycles
  • Right-angle and in-line versions available
  • Fast acting - 20 ms to close (PV16)
  • Available in aluminum or stainless steel
  • Choice of bellows or ‘O’ ring shaft sealing with aluminum bodies
  • Bellows sealed valves 100 grease free vacuum
  • Optional control valves available in a wide range of operating voltages
  • Valve and microswitch bakeable to 100 °C
  • The PVPK valves have been improved and now feature a mean-time-to-failure of 5000000 cycles for even longer life.
  • The range of single acting cylinder, spring return pipeline valves is designed for high speed actuation from standard pneumatic lines, and are offered in sizes NW10, 16, 25, 40 and 50. The NW16, 25, 40 and 50 versions of the valve are available in both right-angle and in-line styles, to give you more options when you design your vacuum system.
Technical data  
Valve actuation type Single acting, pneumatically opened, spring closed
Pressure range 1 x 10-9 to 2100 mbar / 8 x 10-10 to 1575 Torr
Max pressure differential
  Opening 1000 mbar / 750 Torr
  Closing 2100 mbar / 1575 Torr
Leak rate < 1 x 10-9 mbar ls- 1
  < 8 x 10-10 Torr ls- 1
Pneumatic connector Rp 1/8 (1/8 inch BSP) *
Pneumatic operating pressure 2.8 to 4.2 bar / 41 to 61 psi
Electrical indicator Single microswitch ‡
Microswitch electrical rating 24 V, 1.5 A a.c. or d.c.
Max cycle frequency 900 h-1
Bellows reliability, MTTF 5000000 cycles
Ambient operating temp 5 - 100 °C
Maximum baking temp 100 °C
Construction materials
PVPKA HE30TF aluminium
PVPKS AISI304 stainless steel
Bellows AISI316L stainless steel
O-ring Fluoroelastomer
Molecular conductance (ls-1) Right angled
  PV25PK 10


‡ Twin microswitch versions are available on request.

  Time to open (ms)* Time to close (ms)*
PV25PK 15 41
Weight Aluminium Stainless Steel
PV25PK 610g / 21.4oz 980g / 34.3oz

* With optional control valve fitted