Manifold Valves
Kriloha Gaskets, your premier partner in industrial sealing and fluid control, offers an elite range of Manifold Valves within our Valve and Fitting Accessories department. Manifold valves are engineered to consolidate multiple valves into a single, compact body. This integration is critical for connecting pressure transmitters, gauges, and switches to process lines while minimizing leak paths and simplifying installation. From 2-way to 5-way configurations, our manifolds provide the robust interface required for the most demanding environments in India and abroad.
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What is a Manifold Valve?
A manifold valve is a functional assembly that combines several valves—typically isolation, bleed, and equalization valves—into one manifold block. By replacing multiple individual fittings and lengths of pipe, manifolds reduce the number of potential leak points, a factor that is vital for maintaining system integrity and environmental compliance.
The Core Functions:
Isolation (Block): Stops the process fluid from reaching the instrument.
Bleed (Vent): Relieves trapped pressure from the instrument side for safe removal or calibration.
Equalization: Balances pressure across the high and low sides of a differential pressure (DP) transmitter to prevent over-range damage.
Technical Specifications and Material Science
At Kriloha Gaskets, we treat every manifold as a critical safety component. Our manufacturing process focuses on precision machining and high-grade metallurgy.
Available Materials:
SS 316 / 316L: The gold standard for chemical, pharmaceutical, and offshore applications due to its high molybdenum content.
Carbon Steel (ASTM A105): A durable, cost-effective solution for non-corrosive hydraulic and oil-based systems.
Monel 400 & Hastelloy C276: Engineered for extremely aggressive media, including hydrofluoric acid and sour gas service.
Duplex & Super Duplex Steel: Designed for high-chloride environments where traditional stainless steels might suffer from stress corrosion cracking.
Design Parameters:
Pressure Ratings: Standard configurations are rated for 6,000 PSI, with specialized heavy-duty blocks reaching 10,000 PSI.
Temperature Range: Capable of operating from cryogenic levels up to 538°C (1,000°F) when equipped with Grafoil packing.
Safety Factor: Our manifolds feature a 4:1 safety factor, ensuring they can withstand surges well beyond their rated working pressure.
Available Profile Configurations
Why Kriloha Gaskets is the Preferred Choice
While many provide valves, Kriloha Gaskets provides integrated sealing solutions. Our heritage in gasket manufacturing allows us to design manifolds with superior internal sealing characteristics.
1. Precision Metal-to-Metal Seats
Our valves feature a non-rotating, self-centering stem tip. This design ensures a bubble-tight shut-off without the “galling” that often ruins the seat of cheaper valves.
2. Space and Weight Savings
By consolidating valves into a single block, our manifolds reduce the footprint of your instrumentation by up to 60%. This is particularly valuable in offshore rigs and skid-mounted systems.
3. Rigorous Testing
Every manifold is subject to hydrostatic and pneumatic testing at our facility. We verify that the “equalization” and “isolation” functions work perfectly under maximum load before the product leaves our warehouse.
Installation and Maintenance Best Practices
To ensure the long-term reliability of your manifold system, follow these industrial standards:
Mounting: Use the dedicated mounting holes on the manifold block to secure it to a pipe stand or wall. Do not rely solely on the tubing to support the weight of the manifold and transmitter.
Packing Adjustment: If a leak is detected around the stem, our manifolds feature an externally adjustable packing nut. A slight turn can often reseat the packing without interrupting the process.
Cleanliness: Ensure all process lines are flushed before installation. Small metal shavings or debris can lodge in the manifold seat, preventing a complete seal.
Frequently Asked Questions (FAQ's)
Q: How do I choose between a 3-way and a 5-way manifold?
A: Choose a 3-way manifold for standard differential pressure applications where cost and space are primary concerns. Opt for a 5-way manifold if your process requires independent venting of the lines or for high-accuracy gas flow measurement where zero-leakage is critical.
Q: What is the benefit of the "non-rotating stem tip"?
A: Standard stems rotate as they close, which can “grind” the seat over time. A non-rotating tip moves vertically into the seat, providing a “compression” seal that lasts significantly longer and prevents leaking.
Q: Can these manifolds be used in "Sour Gas" (H2S) environments?
A: Yes. We manufacture NACE MR0175 / ISO 15156 compliant manifolds using specially treated materials to resist sulfide stress cracking.
Q: Do your manifolds come with mounting kits?
A: We offer optional “Pipe Mounting Kits” (U-bolts and brackets) that allow for easy installation on 2-inch pipes. Please specify this requirement at the time of inquiry.
Q: What connection types are available?
A: Our standard connections are 1/2″ NPT (Male or Female), but we also provide flanged “IEC 61518” connections for direct mounting to transmitters.
Contact Kriloha Ltd. Today
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