Dimensions & Weights

Wafer Pattern EPDM Seat Dimension Diagram
Valve Size (mm)506580100125150200250300350400450500600
H1 (mm)147155173183211223248304329360415439488536
H2 (mm)677591101127139169219244309348372423536
H3 (mm)1919242424243232326060606565
H4 (mm)194202236246274286325381406431516540623671
C (mm)125145160180210240295355410470525585650770
D1 (mm)180180180180230230350-------
D2 (mm)8080110110110110170250250360360360500500
L1 (mm)122122135135150150180250250350350350400400
D (mm)90104124146176206257312364407466522575680

Pressure / Temperature

Wafer Pattern EPDM Seat Pressure/Temperature Graph

Pressure / Temperature Rating


Test Pressures (Hydraulic)

Shell test - Hydrostatic - 24 bar
Seat test - Hydrostatic - 17.6 bar
Seat test - pneumatic - 6 bar 


BearingPolyacetal and glass filled PTFE
BodyDuctile Iron
DiscStainless Steel
OperatorAluminium die-cast
Seat and O-RingEPDM
Stem / Bottom Stem410 Stainless Steel


Wafer Pattern EPDM Seat

Wafer Pattern EPDM Seat

  • EPDM seat
  • WRAS approved
  • Suitable for various flanges
  • Spherical design for discs and seats
  • Integral ISO 5211 actuator mounting flange
  • Low valve operating torque
  • Light designed for operation efficiency
  • Emission-free stem sealing mechanism

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