Gauge Valves
In the demanding world of fluid dynamics and industrial processing, the accuracy of your pressure readings is only as reliable as the valves protecting your gauges. Kriloha Gaskets, a leader in high-performance sealing and fluid handling, presents our specialized range of Gauge Valves.
As a vital subcategory within our Valve and Fitting Accessories line, these valves are engineered to provide a secure interface between your process piping and sensitive measurement instruments. Whether you are operating in a refinery, a chemical plant, or a high-pressure steam facility, our gauge valves ensure safety, ease of maintenance, and unparalleled precision.
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What is a Gauge Valve?
A gauge valve is a specialized block-and-bleed component designed specifically for the mounting of pressure gauges and transmitters. Unlike standard isolation valves, a gauge valve allows the operator to isolate the instrument from the process media and, crucially, vent the residual pressure trapped between the valve and the gauge.
This functionality is essential for:
Calibration: Safely removing the gauge for testing without shutting down the entire system.
Safety: Preventing “pressure traps” that could cause accidental discharge during maintenance.
Longevity: Shielding delicate instruments from process surges and pulsations.
Technical Excellence: Materials and Engineering
At Kriloha Gaskets, we recognize that instrumentation is the “eyes and ears” of your facility. Therefore, our gauge valves are manufactured to the highest metallurgical standards.
Premium Material Options:
Stainless Steel 316/316L: Our most popular choice, offering superior resistance to pitting and crevice corrosion in harsh environments.
Carbon Steel (A105): Zinc-plated or phosphate-treated for excellent durability in oil and gas applications.
Duplex & Super Duplex: Specifically for offshore and seawater applications where standard stainless steel might fail.
Monel & Hastelloy: Available for highly specialized chemical processes involving hydrochloric or sulfuric acids.
Design Features:
Non-Rotating Tip: Prevents galling and ensures a bubble-tight seal every time the valve is closed.
Back-Seating Design: Provides a secondary seal when the valve is fully open, protecting the packing from process pressure and extending its lifespan.
High-Pressure Ratings: Standard configurations support up to 6,000 PSI (413 bar), with heavy-duty versions available up to 10,000 PSI.
Available Profile Configurations
Industrial Applications
Kriloha Gaskets’ gauge valves are trusted across a spectrum of critical industries:
Petrochemical & Refining: Handling volatile hydrocarbons where leak prevention is a regulatory mandate.
Power Generation: Protecting gauges on high-pressure boiler feed lines and turbine steam inlets.
Water & Wastewater: Regulating pressure in filtration systems and chemical dosing skids.
Marine & Offshore: Withstanding the corrosive salt-spray environments of oil rigs and shipping vessels.
The Kriloha Advantage: Sealing Expertise
Why buy a valve from a gasket company? Because at Kriloha Gaskets, we understand the Science of Sealing. A gauge valve is only as good as its internal and external seals.
We apply our decades of expertise in gasket manufacturing to the packing and seats of our valves. When you choose a Kriloha Gauge Valve, you are benefiting from:
Low Torque Operation: Our valves are designed to operate smoothly even under maximum pressure.
Environmentally Friendly: Low-emission (Low-E) packing comes standard, helping your facility meet modern environmental standards.
Traceability: Every valve comes with a MTC (Material Test Certificate) to ensure compliance with project specifications.
Installation and Maintenance Tips
To maximize the ROI of your instrumentation accessories, keep these best practices in mind:
Venting Direction: When using the bleed function, ensure the vent port is pointed away from personnel or toward a collection system.
Thread Protection: Always use high-quality PTFE tape or pipe sealant on NPT connections to prevent galling.
Regular Inspection: Periodically check the stem packing for signs of weepage. Kriloha valves feature adjustable packing nuts to stop minor leaks without removing the valve from service.
Frequently Asked Questions (FAQ's)
Q: What is the difference between a Needle Valve and a Gauge Valve?
A: While both use a needle-like plunger, a Gauge Valve typically includes extra ports for venting or calibration. A standard needle valve is for flow regulation, whereas a gauge valve is specifically for instrument isolation and safety.
Q: Can I use these valves for high-temperature steam?
A: Absolutely. For steam service, we recommend our Stainless Steel hard-seat series with Graphite packing, which can handle temperatures exceeding 450°C.
Q: Does the valve come with a bleed plug?
A: Yes, most of our multi-port and block-and-bleed models come with a standard 1/2″ or 1/4″ NPT vent plug included.
Q: Are Kriloha Gauge Valves NACE compliant?
A: We offer specific models that meet NACE MR0175/ISO 15156 requirements for sour gas service (H2S), utilizing specially heat-treated materials.
Q: What are the standard connection sizes?
A: Our stock includes 1/2″ NPT Male-to-Female, 1/2″ NPT Female-to-Female, and various metric sizes upon request.
Contact Kriloha Ltd. Today
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