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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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GGU050P24
Connection – PVC – Mid Range Gauge – 200 psi – Viton – 70/30 Glycerin Filled
GGU050P24D
Connection – PVC – Mid Range Gauge – 200 psi – Viton – 70/30 Glycerin Filled – Metric Socket Connectors
GGU050P24H
Connection – PVC – Mid Range Gauge – 200 psi – Hypalon – 70/30 Glycerin Filled
GGU050P24T
Connection – PVC – Mid Range Gauge – 200 psi – PTFE Diaghragm – 70/30 Glycerin Filled – Socket Connectors – Viton O-Ring
GGU050P24TE
Connection – PVC – Mid Range Gauge – 200 psi – PTFE Diaghragm – 70/30 Glycerin Filled – Socket Connectors – EPDM O-Rings
GGU050P24TT
Connection – PVC – Mid Range Gauge – 200 psi – PTFE Diaghragm – 70/30 Glycerin Filled – Socket Connectors – PTFE Encapsulated O-Rings
GGU050P24TXL
Connection – PVC – 4″ Mid Range Gauge – 200 psi – PTFE Diaghragm – 70/30 Glycerin Filled – Socket Connectors – PTFE Encapsulated O-Rings
GGU050P25
Connection – PVC – Mid Range Gauge – 300 psi – Viton – 70/30 Glycerin Filled
GGU050P25T
Connection – PVC – Mid Range Gauge – 300 psi – PTFE Diaghragm – 70/30 Glycerin Filled – Socket Connectors – Viton O-Ring
GGU050P30T
Connection – PVC – Premium Gauge – 100 psi – PTFE – 70/30 Glycerin Filled – Socket Connectors
148495067