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Gauge & Instrument Guards

Griffco diaphragm gauge guards and instrument isolators are designed to enhance the performance of chemical feed systems. The addition of gauges to the system ensures optimal pressures are maintained. Diaphragm isolators protect instruments against chemical attack. Also known as diaphragm isolators.

Available Sizes

1/4″, 3/8″, and 1/2″ (NPT, BSPT, Socket, Union, Flange)
Gauge Port Size: 1/4″

No Gauge
0 – 160 psi (Standard)

Economy Gauge
Brass Case w/Brass Connection
0 – 60 psi

Mid-Range Gauge
304 SS Gauge Case w/Brass Connection
0 – 100 psi

Premium Gauge
304 SS Gauge Case w/316 SS Connection
(Glycerin Filled)
0 – 200 psi

PVC (Max Temp: 140°F / 60°C)
CPVC (Max Temp: 190°F / 87°C)
Polypropylene (Max Temp: 190°F / 87°C)
PTFE
PVDF (Max Temp: 300°F / 150°C)
316L SS
Alloy 20

Top
Noryl®

O-Ring

Viton®

Connections

Standard: Viton®
Optional: PTFE, Hypalon®, Kalrez®

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Description
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GG050P32
Gauge – 60 psi – Viton – 70/30 Glycerin Filled
GG050P32T
Gauge – 60 psi – PTFE – 70/30 Glycerin Filled
GG050P33
Gauge – 100 psi – Viton – 70/30 Glycerin Filled
GG050P33H
Gauge – 100 psi – Hypalon – 70/30 Glycerin Filled
GG050P33M
Back Mount Gauge – 100 psi – Viton – 70/30 Glycerin Filled
GG050P33T
Gauge – 100 psi – PTFE – 70/30 Glycerin Filled
GG050P34
Gauge – 200 psi – Viton – 70/30 Glycerin Filled
GG050P34M
Back Mount Gauge – 200 psi – Viton – 70/30 Glycerin Filled
GG050P34T
Gauge – 200 psi – PTFE – 70/30 Glycerin Filled
GG050P35
Gauge – 300 psi – Viton – 70/30 Glycerin Filled
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