Valves - diaphragms

EPDM and EPDM plus diaphragms

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Overview

EPDM and EPDM plus diaphragms

Ethylene propylene diene monomer (EPDM) is fairly chemical resistant and offers quality performances in applications with repetitive steam-in-place (SIP) cycles.

We currently have two types of EPDM diaphragm available:

  • EPDM a relatively low cost material widely used in pharmaceutical applications
  • EPDM Plus a Parylene surface treated version which improves the longevity of the EPDM and greatly reduces the stickiness of the diaphragm.

Features and benefits

  • All our diaphragms are laser-etched with cure dates and batch numbers, ensuring that they are completely traceable
  • Wide temperature range; good in steam applications
  • 不并le for use with solvents or petroleum agents
  • Parylene surface treated version available

Technical summary

Compatible actuators AJS, AKS, AKS (0.5", 1", 1.5")
Material specification EPDM with Parylene surface treatment, Ethylene propylene diene monomer (peroxide cured)
Standards ASME BPE, USP VI

Technical Summary table lists features available within the range. See ‘Specifications’ tab for model specific information.

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Specifications

Technical specifications

EPDM diaphragms EPDM plus diaphragms
Colour Black Black
Compatible actuators AJS, AKS, AKS (0.5", 1", 1.5") AJS, AKS, AKS (0.5", 1", 1.5")
Diaphragm variant(s) Bellows, Parylene surface, Straight Parylene surface, Straight
Material specification Ethylene propylene diene monomer (peroxide cured) EPDM with Parylene surface treatment
Parylene treatment No, Yes No, Yes
Sizes 0.5", 0.75", 1.0", 1.5", 2.0", 3.0", 4.0" 0.5", 0.75", 1.0", 1.5", 2.0", 3.0"
Standards ASME BPE, USP VI ASME BPE, USP VI
Operating temperature range -51 to 135°C -35 to 135°C
Operating temperature range -60 to 275 °F -30 to 275 °F

Materials of construction

Material EPDM, EPDM Plus

Literature

Brochures

  1. ASEPCO weirless radial diaphragm valves (EN).pdf
    PDF - 600,3kb

Datasheet

  1. ASEPCO diaphragms datasheet (EN).pdf
    PDF - 234,5kb

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