Home 9 Products 9 Static Seals 9 Diaphragms

For industrial and sanitary needs

Garlock manufactures the most durable and long-lasting pump and valve diaphragms available, reducing equipment downtime and increasing productivity.


GYLON® Style 3522

Exclusive to Garlock, this time proven product is made using a proprietary process which optimizes quality and
uniformity. Using the best available technology GYLON® PTFE diaphragms offer the longest cycle life in the industry, and continue to outperform all competitive materials.

Features & Benefits
  • 10 N/mm2 minimum load (140 N/mm2 maximum load)
  • Wide temperature range
  • Stopped cold flow
  • High resilience
  • High pressure & vacuum duties
  • Excellent chemical resistance
  • Available with inner-/outer eyelet
  • Good electrical insulating properties
  • Unlimited shelf-life
  • Weather and UV resistant
  • Temperature: -268 °C to +260 °C
  • Pressure: up to 55 bar
  • Shore hardness: D59
  • Available Thicknesses: 0.5mm, 0.7mm, 0.8mm, 1.0mm, 1.25mm, 1.6mm, 1.72mm, 2.0mm (more thicknesses on request)
  • Compressibility (ASTM F36) 20-25%
  • Recovery (ASTM F36) 5%
  • 100% pure PTFE (No filler)


Pump diaphragms are the solution for sanitary applications of air operated diaphragm pumps. Garlock offers
GYLON ONE-UP ® pump diaphragms for the most demanding sanitary applications such as food and pharmaceutical applications.

Features & Benefits
  • FDA compliant
  • Available in all of the sizes and pump offerings as the industrial Garlock ONE-UP® pump diaphragm
  • One-piece design is easy to install
  • Temperature Minimum +4°C (+40°F)
  • Temperature Maximum +149°C (+300°F)

Garlock ONE-UP®

Chemical resistance is the property that makes Garlock ONE-UP ® pump diaphragms so versatile. Suitable for use with most chemicals and in elevated temperatures and pressures, these diaphragms are ideally suited for those general service pumps that are likely to be put to one use today and another use tomorrow.

Features & Benefits
  • Contains high performance PTFE sheet
  • Bonded to a reinforced rubber backing
  • Patented rib construction
  • Chemically inert & temperature resistant
  • Greater flex life
  • Available for most brands of pumps & sizes
  • Replace diaphragms less often
  • Diaphragms work with most chemicals
  • Lowers maintenance and operating costs
  • Neopren backing: -10°C to 93°C ( 14°F to 200°F)
  • EPDM backing: -10°C to 137°C (14°F to 280°F)
  • VITON® baking: 0°C to 176°C (32°F to 350°F)
Garlock GmbH
Falkenweg 1
41468 Neuss
+49 2131 349-0
garlockgmbh @ garlock.com

© 2024 Garlock GmbH, Germany

Garlock Global Website

Career Site Europe