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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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Product
Description
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GG050PP32XL
Gauge – 60 psi – 70/30 Glycerin Filled
GGS050PP52T
Plated 15 – 60 psi Pressure Switch – PTFE – 70/30 Glycerin Filled
GGS050PP57T
Plated 40 – 150 psi Pressure Switch – PTFE – 70/30 Glycerin Filled
GG050T21
Range Gauge – 160 psi – PTFE – 70/30 Glycerin Filled
GG050T0T
PTFE
GG050T31
Gauge – Viton – 160 psi – 70/30 Glycerin Filled
GG050T31T
Gauge – 160 psi – PTFE – 70/30 Glycerin Filled
GG050T32T
Gauge – 60 psi – PTFE – 70/30 Glycerin Filled
GG050T33
Gauge – 100 psi – 70/30 Glycerin Filled
GGS050P62
15 – 60 psi Pressure Switch – 70/30 Glycerin Filled
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