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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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GGPD050CPE0
1/2″ Gauge Port – EPDM Diaphragm – Special to Accommodate XL Non Griffco Gauges
GGPD050CPV0
1/2″ Gauge Port – Viton Diaphragm – Special to Accommodate XL Non Griffco Gauges
GG050CP01T
GG050CP31
Gauge – 160 psi – Viton – 70/30 Glycerin Filled
GG050CP31H
Gauge – 160 psi – Hypalon – 70/30 Glycerin Filled
GG050CP31T
Gauge – 160 psi – PTFE – 70/30 Glycerin Filled
GG050CP32
Gauge – 60 psi – Viton – 70/30 Glycerin Filled
GG050CP32T
Gauge – 60 psi – PTFE – 70/30 Glycerin Filled
GG050CP32TF
Gauge – 60 psi – PTFE – Flanged – 70/30 Glycerin Filled
GG050CP33
Gauge – 100 psi – Viton – 70/30 Glycerin Filled
114151667