Type 4900 MPV Modular Pilot-Operated Safety Relief Valve

Fully Integrated Pilot-Operated Safety Relief Valve

The Type 4900 MPV features a unique pilot-operated safety relief design that incorporates internal passages between the main valve and pilot valve sub-assemblies. This tubeless assembly provides inherent advantages by minimizing potential damage to external tubing and helps to reduce overall assembly, disassembly and maintenance complexity. However, it still provides the flexibility and versatility found in all Dresser Consolidated pilot-operated safety relief valve designs.

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Selection Criteria

The Type 4900 MPV pilot-operated safety relief valve is an excellent solution in applications with harsh or corrosive atmospheres or installations with tight space limitations. It is also an effective solution in situations where potential damage to tubing is likely due to the operating system or environment. This includes service conditions such as those typically found in offshore applications and process systems with high levels of noise or vibration. The Type 4900 MPV is suitable for use with a range of liquids, gases and steam.

Key Features

One of the Type 4900 MPV modular pilot-operated safety relief valve's key features is the fully integrated design that eliminates the external tubing and fittings used in standard POSRV's. The Type 4900 MPV main valve construction is a top-entry design providing easy access to the valve's internal components. The standard pilot valve assemblies can be configured as pop action or modulating action depending on the specific application requirements.

Benefits

The Type 4900 MPV's modular design is easy to install, operate, and maintain. Tubings and fittings are eliminated for simple assembly and disassembly. Additionally, its streamlined engineering addresses issues of tubing damage potentially caused by harsh environments and rough use. Plus, the top-entry design ensures easy access to the main valve components. The result is reduced maintenance and operating costs.