Pressure Gauge & Sight Glass Insulation Covers
Form-fitted removable thermal covers with transparent high-temperature viewing windows for pressure gauges, differential transmitters, sight glasses, and level indicators.
Live Dial Monitoring with Full Freeze & Heat Protection
Pressure gauges, level glasses, and differential pressure impulse lines in outdoor chemical and power plants are vulnerable to winter freezing, impulse line plugging, and solar UV radiation degradation.
Heaton Pressure Gauge & Sight Glass Covers feature optically clear, high-temperature fluoropolymer viewing windows that allow operators to read dial gauges and liquid levels without removing the jacket or breaking thermal containment.
Pressure Gauge Cover Technical Matrix
Engineered for 2.5", 4", 6" dial gauges, tubular level indicators, and reflex sight glasses.
| Parameter | Round Dial Pressure Gauges | Tubular / Reflex Level Gauges | DP Transmitter Manifolds |
|---|---|---|---|
| Dial / Gauge Sizes | 63mm, 100mm, 150mm, 200mm dials | Standard center-to-center lengths | 3-way, 5-way valve manifolds |
| Operating Temp Range | -40°C to 200°C | -40°C to 260°C | -40°C to 250°C |
| Viewing Window | High-clarity FEP / PTFE film window | Full-length clear viewing slot | Optional hinged inspection flap |
| Outer Jacketing | Silicone Impregnated Glass Fabric | PTFE Chemical-Resistant Fabric | Silicone / Weatherproof Shell |
| Closure Mechanism | Wrap-around Velcro & drawstrings | Industrial Nomex Hook & Loop | Stainless Steel D-Rings & Straps |
Protect Your Process Instrumentation
Send us your gauge dial dimensions, mounting styles, and temperature requirements for a custom quote.