Garlock ONE-UP Pump Diaphragm 2″ for Almatec/ Dellmeco PA0025

From: £688.06 From: £584.84

Compatible with:

  • ALMATEC: AD50, A50 (2″) –  1-50-031-67
  • DELLMECO: DM50 (2″)
  • TAPFLO: T400 & T420 (2″)
  • UNITEC: Ua4, UH4, 1-25-031-67

Backing Options

As standard, this diaphragm is supplied with a 0.89mm thick PTFE product contact face bounded to a Neoprene rubber backing, suitable for maximum operating temperatures of 93 Degree C. This diaphragm is also available with high temperature / enhanced chemical resistant EPDM rubber backing (137 Degree C) or Viton rubber backing (176 Degree C) materials. For high abrasion applications, the PTFE product contact face can be supplied in a thicker layer of 1.45mm, giving a 38% increase in wear resistance. Please make your selection below.

Product Description

Garlock ONE-UP Pump Diaphragm PA0025 

Compatible with:

  • ALMATEC: AD50, A50 (2″) –  1-50-031-67
  • DELLMECO: DM50 (2″)
  • TAPFLO: T400 & T420 (2″)
  • UNITEC: Ua4, UH4, 1-25-031-67

GARLOCK ONE-UP Pump Diaphragms are durable and versatile. Containing high performance PTFE GORE sheet on the wetted side, they last significantly longer than other conventional PTFE diaphragms. These diaphragms provide a dramatic improvement in service life and are considerably stronger, with greater flex life. Excellent chemical resistance makes GARLOCK ONE-UP Pump Diaphragms extremely versatile. They are suitable for use with most chemicals and in elevated temperatures and pressures, and are ideally suited for general-service pumps that are used for a variety of pumping tasks.


– Longer lasting: replace diaphragms less often

– Versatile: diaphragms work with most chemicals

– Lower cost: maintenance and operating costs


– Contains high performance, PTFE GORE sheet

– Bonded to a reinforced Neoprene backing

– Patented rib construction

– Chemically inert and temperature resistant

– Greater flex life

– Available for most makes of pumps and sizes

Not for use in food, drug, cosmetic or medical device manufacturing, processing or packaging operations.

Material: Proprietary 100% PTFE on wetted side Construction: One-piece design

Temperature Range:
– Neoprene backing: 14F to 200F (-10C to 93C)

– EPDM Backing: 14F to 280F (-10C to 137C)

– Viton Backing: 32F to 350F (0C to 176C)

Chemical Resistance: Resistance to all media in the 0-14ph range except molten alkali metals and elemental fluorine.

Flex Life: More than 70MM cycles (ASTM-D-2176, 0.020in. thick, 0.600in. wide)

Impact Strength: 30.4 ft.lbs./in. (ASTM-D-256, 0.220 in.thick)

GORE is a registered trademark of W.L.Gore & Associates

Click for Data Sheet

Additional information

Weight 1 kg
Pump Manufacturer

Almatec, Dellmeco, Unitec – Wilden


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