Marquest Scientific, Inc.
Marquest Scientific, Inc.
2950 Airway Avenue, Bldg C-5
Costa Mesa, California U.S.A.
Tel: (714) 491-9191
Toll Free: (866) 452-2349
Fax: (714) 491-9199
Email: sales@marquestscientific.com
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Series TG TUFF GUARD Gauge Isolators
PVC, CPVC, Polypropylene, & PVDF Gauge Guards w/ All Stainless Ashcroft 1008s, Glycerin Filled 2.5" Dia. Gauge Installed. Assembly Internals Aqueous Glycerin Filled. Please contact factory to request part number and pricing for Silicone, Mineral Oil, or Halocarbon assembly internal filling.
Protect and Isolate Pressure Sensing Instruments. 
  • Gauge Installed is U.S. Made Ashcroft 1008s All Stainless 63mm (2.5") Glycerin Filled Gauge, Accuracy is +-1% of span
  • Modified PTFE Diaphragm Standard, Viton or EPDM Available
  • Diaphragm is Convoluted for Accurate Pressure Transmission.
  • Stainless steel reinforced instrument connection. Integrally molded. "Unbreakable!"
  • Reinforced process connection with compressive spoke ribs to transfer the tensile stress into compression.
  • Wall thickness meet or exceed ANSI Schedule 120.
  • Sufficient displacement to handle the required volumetric displacement of all instrument sizes and pressure ranges.
  • Integral wrench provisions for field service and maintenance. Diaphragm is Replaceable.
  • Low Profile Design eliminates Dead Volume
  • 3 year limited warranty

PLEASE CLICK ITEM # BELOW TO VIEW ADDITIONAL SPECIFICATIONS & DOWNLOADS

Product Image
Unit of Measure
Items TG-SS-PVC
TG-22T030SS-PVC
1/4" Inlet Female NPT Connection, PVC Body, PTFE Diaphragm, 0-30 PSI Ashcroft All Stainless 2.5" Gauge
List Price $264.50
 TG-SS-PVC
TG-22T060SS-PVC
1/4" Inlet Female NPT Connection, PVC Body, PTFE Diaphragm, 0-60 PSI Ashcroft All Stainless 2.5" Gauge
List Price $264.50
 TG-SS-PVC
TG-22T100SS-PVC
1/4" Inlet Female NPT Connection, PVC Body, PTFE Diaphragm, 0-100 PSI Ashcroft All Stainless 2.5" Gauge
List Price $264.50
 TG-SS-PVC
TG-22T160SS-PVC
1/4" Inlet Female NPT Connection, PVC Body, PTFE Diaphragm, 0-160 PSI Ashcroft All Stainless 2.5" Gauge
List Price $264.50
 TG-SS-PVC
TG-22T200SS-PVC
1/4" Inlet Female NPT Connection, PVC Body, PTFE Diaphragm, 0-200 PSI Ashcroft All Stainless 2.5" Gauge
List Price $264.50
Inlet Connection N/A 1/4" Female NPT
Materials N/A PVC, PTFE Diaphragm
Installed Gauge N/A 0-30 PSI, All Stainless N/A 0-60 PSI, All Stainless N/A 0-100 PSI, All Stainless N/A 0-160 PSI, All Stainless N/A 0-200 PSI, All Stainless
Scope N/A

Body:

  • PVC: Polyvinyl Chloride
  • CPVC: Chlorinated Polyvinyl Chloride
  • PP: Polypropylene homopolymer, glass & mineral reinforced

Membrane:

  • Standard: PTFE®, also available in:
  • FPM: Viton®, Fluorine elastomer
  • EPDM: Ethylene Propylene elastomer
 		N/A
  • Protects and isolates pressure sensing instruments
  • Total isolation from system media
  • Low profile design eliminates dead volume
  • Convoluted diaphragm allows accurate transmission of system pressure
  • Optimum pressure containment spherical design
  • Low in original cost and maintenance
  • Simple installation
 		N/A

Body:

  • PVC: Polyvinyl Chloride
  • CPVC: Chlorinated Polyvinyl Chloride
  • PP: Polypropylene homopolymer, glass & mineral reinforced

Membrane:

  • Standard: PTFE®, also available in:
  • FPM: Viton®, Fluorine elastomer
  • EPDM: Ethylene Propylene elastomer
 		N/A
  • Protects and isolates pressure sensing instruments
  • Total isolation from system media
  • Low profile design eliminates dead volume
  • Convoluted diaphragm allows accurate transmission of system pressure
  • Optimum pressure containment spherical design
  • Low in original cost and maintenance
  • Simple installation
 		N/A

Body:

  • PVC: Polyvinyl Chloride
  • CPVC: Chlorinated Polyvinyl Chloride
  • PP: Polypropylene homopolymer, glass & mineral reinforced

Membrane:

  • Standard: PTFE®, also available in:
  • FPM: Viton®, Fluorine elastomer
  • EPDM: Ethylene Propylene elastomer
Materials of Construction N/A

Body:

  • PVC: Polyvinyl Chloride
  • CPVC: Chlorinated Polyvinyl Chloride
  • PP: Polypropylene homopolymer, glass & mineral reinforced

Membrane:

  • Standard: PTFE®, also available in:
  • FPM: Viton®, Fluorine elastomer
  • EPDM: Ethylene Propylene elastomer
 		N/A

Body:

  • PVC: Polyvinyl Chloride
  • CPVC: Chlorinated Polyvinyl Chloride
  • PP: Polypropylene homopolymer, glass & mineral reinforced

Membrane:

  • Standard: PTFE®, also available in:
  • FPM: Viton®, Fluorine elastomer
  • EPDM: Ethylene Propylene elastomer
 		N/A

Body:

  • PVC: Polyvinyl Chloride
  • CPVC: Chlorinated Polyvinyl Chloride
  • PP: Polypropylene homopolymer, glass & mineral reinforced

Membrane:

  • Standard: PTFE®, also available in:
  • FPM: Viton®, Fluorine elastomer
  • EPDM: Ethylene Propylene elastomer
 		N/A
  • Protects and isolates pressure sensing instruments
  • Total isolation from system media
  • Low profile design eliminates dead volume
  • Convoluted diaphragm allows accurate transmission of system pressure
  • Optimum pressure containment spherical design
  • Low in original cost and maintenance
  • Simple installation
 		N/A
  • Protects and isolates pressure sensing instruments
  • Total isolation from system media
  • Low profile design eliminates dead volume
  • Convoluted diaphragm allows accurate transmission of system pressure
  • Optimum pressure containment spherical design
  • Low in original cost and maintenance
  • Simple installation
Features N/A
  • Protects and isolates pressure sensing instruments
  • Total isolation from system media
  • Low profile design eliminates dead volume
  • Convoluted diaphragm allows accurate transmission of system pressure
  • Optimum pressure containment spherical design
  • Low in original cost and maintenance
  • Simple installation