Instrumentation & Tubing

Gauge Cocks

Brass gauge cocks with a 1/2" NPT connection and a stainless steel ball check that connect sight glasses to tanks, vessels and treaters.

Trilogy brass gauge cocks with handwheel
Overview

About Gauge Cocks (Gauge Valves)

Trilogy gauge cocks connect sight glasses to tanks, vessels and treaters so operators can read liquid levels at a glance. A handwheel-operated stem isolates the gauge glass for service or replacement.

An internal stainless steel check ball closes automatically if the gauge glass breaks, limiting product loss. The brass body installs with a 1/2" NPT connection, and integral mounting ears provide added support.

Specifications

Specifications at a Glance

Download Spec Sheet (PDF)
SpecificationDetail
Body materialBrass
Connection1/2" NPT
Gauge glass port16 mm (0.63")
Overall height3.9" (10 cm)
Max. pressure232 psi (16 bar)
Max. temperature212°F (100°C)
Safety feature304 stainless steel ball check
PackingPTFE
Weight1.14 lb
Sizes and Specs

Get the Right Part the First Time

Sizes and configurations vary by application. Send us the details below and our team will confirm the spec, check stock and come back with a firm quote.

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What to Include in Your Request

  • Connection size
  • Sight glass size
  • Quantity
  • Service conditions (fluid, pressure and temperature)
Documentation

Spec Sheets and Downloads

Download the full spec sheet with dimensional drawings, or ask our team for material documentation for your order.

Gauge Cocks Spec Sheet

PDF, includes dimensional drawings

Download

Material Documentation

Available on request

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