Skip to content

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®

Sort by Product A - Z
Filters Sort results
Reset Apply
Image
Product
Description
Add to Project
GG050S23XL
Range Gauge – 100 psi – Viton – 70/30 Glycerin Filled
GG050S24XL
Range Gauge – 200 psi – Viton – 70/30 Glycerin Filled
GG050S11
Gauge – 160 psi – 70/30 Glycerin Filled
GG050S12
Gauge – 60 psi – 70/30 Glycerin Filled
GG050S12T
Gauge – 60 psi – PTFE – 70/30 Glycerin Filled
GG050S13
Gauge – 100 psi – 70/30 Glycerin Filled
GG050S13T
Gauge – 100 psi – PTFE – 70/30 Glycerin Filled
GG050S14
Gauge – 200 psi – 70/30 Glycerin Filled
GG050S14T
Gauge – 200 psi – PTFE – 70/30 Glycerin Filled
GG050S34HFXLSPECIAL
Flanged – No Gauge – Customer will provide gauge (Wika 4″ Premium Glycerin Filled – Special
12367