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″
Instrument Gauge Guards
Features
- Molded Noryl Top
- 316 SS Gauge Connection
- Calibration Screw for Zeroing
- Available with or without Gauge
Gauge Options
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
Griffco Benefits
- Reliable Instrument Protection
- Will perform in any position
- Multiple Diaphragm Options
- No Metal Fasteners
Wetted Materials
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®
| TITLE | DESCRIPTION | DATE MODIFIED | DOWNLOAD |
Image | Product | Description | Add to Project |
|---|---|---|---|
 GG050K0F | 150# Flange | | |
| GG050K0FTG5 | PTFE – 1/2″ Gauge Port – 150# Flange | | |
| GG050K0G5 | 1/2″ Gauge Port | | |
| GG050K0T | PTFE | | |
| GG050K0TG5 | PTFE – 1/2″ Gauge Port | | |
 GGPD050K0 | 1/2″ Gauge Port – Viton Diaphragm – Special to Accommodate XL Non Griffco Gauges | | |
| GG050K34T | Gauge – 200 psi – PTFE – 70/30 Glycerin Filled | | |
| GG050K35T | Gauge – 300 psi – PTFE – 70/30 Glycerin Filled | | |
| GG050K36T | Gauge – 30 psi – PTFE – 70/30 Glycerin Filled | | |
| GG050K31 | Gauge – 160 psi – Viton – 70/30 Glycerin Filled | |