Description
1. Overview of Three Valve Manifold MT-M300MV
The Three Valve Manifold MT-M300MV is an essential component in differential pressure measurement systems, designed to provide reliable isolation, equalization, and venting functions for pressure transmitters, pressure switches, and differential pressure gauges. By integrating two isolate valves and one vent/equalizing valve, this manifold ensures safe operation, easy calibration, and dependable maintenance procedures without disrupting the process line.
The MT-M300MV is engineered for high-pressure applications, delivering maximum performance with a working pressure capacity of up to 6000 psi. Manufactured from SS 316 AISI with corrosion-resistant wetted parts, it guarantees long service life even in harsh industrial environments. Its remote mounting configuration makes it ideal for installations where the manifold must be positioned separately from the primary instrument, providing flexibility in complex piping layouts.
Constructed with a metal conical stem tip for tight sealing and PTFE packing to ensure leak-free operation, the Three Valve Manifold MT-M300MV ensures accurate measurement results and stable performance in both gas and liquid service applications. This makes the product particularly valuable in oil and gas, petrochemical, power generation, water treatment, and instrumentation panels.
2. Key Functional Features
The Three Valve Manifold MT-M300MV incorporates several performance-oriented features designed to enhance reliability and efficiency:
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Two Isolate Valves for Process Shut-Off
These valves allow operators to safely disconnect the differential pressure transmitter or gauge from the process line during servicing or maintenance. -
One Vent / Equalizing Valve for Calibration Control
The equalizing valve balances pressure between high-pressure and low-pressure sides, essential for zeroing the instrument before operation. -
Back-Seating Design for Stem Safety
The valve stem is engineered with a back-seat design to prevent blowout, ensuring safety in high-pressure conditions. -
Suitable for Both Gas and Liquid Service
The manifold supports stable sealing performance whether installed in compressible gas systems or liquid media pipelines. -
High Shut-Off Integrity
The metal conical stem tip ensures tight sealing and repeatability over long-term use cycles.
These features make the MT-M300MV a dependable solution for stable differential pressure measurement and safe isolation procedures.
3. Technical Specifications (Standard Parameters)
| Parameter | Specification |
|---|---|
| Mounting Type | Remote Mounting |
| Wetted Material | SS 316 AISI |
| Instrument Connection | ½” NPT (F) x 2 or ½” BSP (F) x 2 |
| Process Connection | ½” NPT (F) x 2 or ½” BSP (F) x 2 |
| Stem Packing | PTFE Packing |
| Stem Tip | Metal Conical Tip |
| Maximum Working Pressure | 6000 psi (approx. 414 bar) |
| Maximum Working Temperature | 240°C |
| Handle Type | SS 316 AISI T-Bar Handle |
| Vent Port | Plugged, for controlled venting |
The use of SS 316 AISI offers excellent resistance to chloride stress corrosion cracking and chemical attacks, making the manifold suitable for aggressive industrial environments.
4. Performance Advantages of MT-M300MV
The Three Valve Manifold MT-M300MV is designed to deliver consistent measurement accuracy and simplified maintenance procedures. The following advantages make it stand out:
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Enhanced Safety in Pressure Measurement Systems
By allowing safe isolation and venting, the MT-M300MV prevents accidental overpressure on sensitive measuring instruments. -
Improved Instrument Calibration Efficiency
The equalizing valve enables smooth balancing of pressure, critical for obtaining precise base-line zero readings. -
Leak-Free Operation with PTFE Packing
The PTFE seal prevents leakage and internal bypass, ensuring accurate readings and safe service. -
Minimal Downtime
Instruments can be removed, inspected, or replaced without shutting down the entire process, improving operational continuity. -
Long-Term Durability
SS 316 AISI construction and hard-seated stems offer resistance to wear, extending product service life. -
Reliable in Harsh Environments
With high temperature and pressure capabilities, the manifold is suitable for refinery units, offshore platforms, and chemical service.
These benefits make the MT-M300MV a preferred choice where precision, reliability, and safety are essential.
5. Applications Across Industrial Sectors
The Three Valve Manifold MT-M300MV is widely used in process control and pressure measurement systems across industries, including:
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Oil & Gas Upstream, Midstream, and Downstream Systems
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Refineries and Petrochemical Plants
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Power Generation Facilities (Steam, Gas, and Combined Cycle Units)
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Chemical Processing Plants
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Pharmaceutical Manufacturing Systems
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Water Treatment and Desalination Plants
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Hydraulic and Pneumatic Instrumentation Circuits
In these applications, the manifold ensures precise control and safe maintenance of differential pressure transmitters and gauges, directly contributing to operational efficiency and measurement accuracy.
6. Why Choose Three Valve Manifold MT-M300MV
Organizations choose the MT-M300MV for its durability, precision, and safe instrumentation isolation capabilities. Key reasons include:
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Reliable performance in high-pressure and high-temperature operations
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Compatibility with various transmitter brands and industrial systems
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Easy calibration and pressure balancing via equalizing valve
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Reduced maintenance costs due to corrosion-resistant materials
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Safe, leak-free operation ensuring long-term system stability
Whether used in new installations or system upgrades, the Three Valve Manifold MT-M300MV delivers trusted control and protection for critical measurement systems.





