Bellowless Poppet

Bellowless Poppet Valves

Right angle bellowless poppet valves are typically used for applications with large differential pressures or "dirty" processes that cause frequent bellows failures. Poppet shafts are sealed with double O-rings.

Specifications

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Bellowless Poppet Valves

SPECIFICATIONS
Port ODs: 3/8 and 1-1/2 inch

Materials: 
   Body: Electropolished 304 stainless steel
   Bonnet seal: Viton 
   Poppet seal: Viton
      Other O-ring compounds available

Actuation: Normally closed 3/8 to 1-1/2 inch ODs: Air-to-open, spring-to-close 
Operating Pressure: 60 to 80 psig 
Differential pressure:  
   Port side: Maximum 100 psi
   Poppet: Maxiumu 20 psia
Maximum temperatures with Viton seals: 
   Sustained: <= 150°C
   Intermittent: <= 204°C
Vacuum range: >= 1 x 10-10 Torr - High vacuum
Options: Fittings, O-rings, air solenoids, micro-switches and actuators

Additional Information

MODEL NUMBER PORT
NOM. OD
FLANGE
TYPE
CONDUCTANCE
(molecular-l/sec.)
A B C D
ESVP-0382-NWB-5 3/8 KF-10B 0.66 1.65 3.77 5.92 2.25
ESVP-0752-NWB-5 3/4 KF-16B 5.00 2.15 4.27 6.41 2.25
ESVP-1002-NWB-5 1 KF-25B 12.00 2.03 4.03 6.17 2.25
ESVP-1502-NWB-5 11/2 KF-40B 128.00 2.40 5.13 7.71 3.00