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PY 45 Series DN 15-50 PN40

PY45 series pneumatic on-off valves are the most effective response to water, air, oil and unexplosive gasses interception.

The construction flexibility of this valve allows a standard on-off use that can be normally closed, normally open or double effect.

The steady materials and the specifically selected gaskets guarantee an efficent operation even under critical conditions of valve opening/closing in very reduced times.

This valve can reach and normally operate at temperatures up to 180°C. This valve has reduced overall dimensions and a wide range of connections in order to meet the sepecific requirements of every single plant.

The large number of applications of this valve makes it an universal model. This is ensured by remarkable costruction details such as:

  • AISI 316 body from DN15 up to DN50 made by precision casting with the lost-wax methud.
  • The hive of the piston is made of Fiberglass EPTM charged Ntlon 66 The heat conductivity of this material less than steel. So the heat of the fluid does not conduct to the working items in the piston.
  • Plug gasket made of carbon charged PTFE for an exellent resistance to high temperature.
  • PTFE and viton stuffling box suitable for both high and low temperature, installed in a self adjusting stable position to have minimum stress for a constant operation.
  • This valve has open valve visual indicator
  • This valve has threaded, flanged and socet alternatives in the connections.

A. Normally Closed Feeding

B. Normally Open Feeding

C. Inflow

D. Outflow

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PY 45 DN15-50 VALVES
1) Media Steam, Water, Air, Oil
2) Nominal Pressure PN40
3) Min. Working Temperature -10°C
4) Max. Working Temperature +180°C
5) Actuator Working Temperature -10°C+100°C
6) Pilot Entrance Air
7) Pilot Pressure 4-6 Bar

 

Entrance Orifice Size Piston Actuator Medium Pressure Pilot Pressure
DN15 50 14 4-6
DN15 80 32 5-6
DN20 50 14 6-6
DN20 80 28 7-6
DN25 50 6 8-6
DN25 80 16 9-6
DN32 50 4.5 10-6
DN32 80 12 11-6
DN32 100 20 12-6
DN40 80 12 13-6
DN40 100 18 14-6
DN50 80 6 15-6
DN50 100 10 16-6

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PY45 DN15-50 VALVES
DN Rp/Ntp Piston Actuator H D B C L G I AA2 AA1 kv m3/h kg
DN15 1/2" 50 160 140 70 16.5 65 G1/8" 38.5 30 25 3.8

0.9

DN15 1/2" 80 181 171 110 16.5 65 G1/4" 57 30 25 - -
DN20 3/4" 50 167 147 70 17 75 G1/8" 38.5 30 31 8.4 1.1
DN20 3/4" 80 190 178 110 17 75 G1/4" 57 30 31 - -
DN25 1" 50 179 157 70 19.5 90 G1/8" 38.5 30 39 - -
DN25 1" 80 190 203 110 19.5 90 G1/4" 57 30 39 15.2 1.3
DN32 1.1/4' 50 199 181 70 20.5 110 G1/8" 38.5 30 48.5 - -
DN32 1.1/4" 80 220 207 110 20.5 110 G1/4" 57 30 48.5 23 2.7
DN32 1.1/4" 100 236 226 137 20.5 110 G1/4" 69 30 48.5 - -
DN40 1.1/2" 80 230 207 110 26.5 120 G1/4" 57 30 54.5 38 2.8
DN40 1.1/2" 100 245 229 137 26.5 120 G1/4" 69 30 54.5 - -
DN50 2" 80 249 234 110 27 150 G1/4" 57 30 68 - -
DN50 2" 100 270 248 137 27 150 G1/4" 69 30 68 52 4.6
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