Fluid path - gaskets

BioPure Gauge Guard


Gauge guard

Protect the faces of your gauges to stop corrosion without sacrificing gauge performance. Sizes from ½” through 1 ½” can be placed on the face of your gauge so that caustic and acidic fluids won’t come into contact with the gauge diaphragm. A thin membrane is moulded in place, favouring one side of the gasket ring so that the membrane is flush with the gauge face.

Features and benefits

  • Available in silicone or EPDM
  • USP Class VI compliant and Animal Derived Component Free (ADCF)
  • Compliant with FDA regulations CFR 21 177.2600
  • Lot numbering enables product traceability
  • Irradiated EPDM gaskets available on request

Technical summary

Gasket typeIsolator 
Certification and complianceADCF, ISO Class 7, USP Class VI 
Shelf life5 years
Gamma stabilityMax 50 kGy 

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


Technical specifications

Silicone RXPX Gauge GuardEPDM Gauge Guards
Gasket typeIsolator Isolator 
Internal diameter35.56 mm9.65 - 35.56 mm
Internal diameter1.4 in0.38 - 1.4 in
External diameter50.29 mm21.59 - 50.29 mm
External diameter1.98 in0.85 - 1.98 in
Size1.5 in0.5, 0.75, 1, 1.5 in
Quantity25 PCS25 PCS
Certification and complianceADCF, ISO Class 7, USP Class VI ADCF, USP Class VI 
Operating temperature range -55 °C to 210 °C-57 °C to 154 °C
Operating temperature range -67 °F to 410 °F-70 °F to 310 °F
Shelf life5 years5 years
Gamma stabilityMax 50 kGy 

Silicone RXPX Gauge Guard dimensions

Size ID (in) OD (in)
1.5 1.4 1.98

EPDM Gauge Guards dimensions

Size ID (in) OD (in)
S 0.5 0.38 0.85
0.75 0.63 0.85
L 1 0.9 1.98
1.5 1.4 1.98

Materials of construction

MaterialEPDM, Silicone



  1. Gauge Guard brochure.pdf
    PDF - 60,8kb


  1. Silicone RXPX Gauge Guard datasheet (US).pdf
    PDF - 690,7kb
  2. EPDM Gauge Guards datasheet (US).pdf
    PDF - 466kb

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