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vapor h valve clark johnson co

Refrigerant Shut-off Valves

 

Vapor Safety Relief Valves- H

parker refrigeration Clark Johnson Co

The H Series of Safety Relief Valves are designed to protect refrigeration systems from overpressure situations and feature a high flow capacity. The H Series are flanged for easy replacement and can be used in a single or dual relief combination.

 

  Product Overview

     Specification

 The MVS electronic control valve provides precise management of flow for a variety of industrial and commercial refrigeration applications. Due to this precise control systems it will run more efficiently and with less charge which reduces operating costs and increases system safety. As an additional benefit the MVS is a normally closed valve which means that it will move to a fully closed position in the event of a power loss. This feature reduces complexity by eliminating the need for an upstream solenoid valve or power backup module.

MVS valves can be applied to manage liquid levels in vessels, liquid injection for compressor cooling, superheat for direct expansion evaporators, brine temperature in chillers, hot gas for defrost, and countless other installations.

Markets:

• Industrial Refrigeration

• Commercial Refrigeration

 

Features and Benefits:

• Suitable for Liquid, Expansion or Vapor Service

• Stainless Steel Valve Construction

• NEMA 3R (IIP65) Electrical Construction

• Hermetically Sealed

• Outfitted with Position Feedback

• Fast Response (0-100% Open < 1 Sec.)

• On-Board Diagnostics

• Replaceable Capacity Cartridges

• Corrosion Resistant Construction

• Spring Return Offers Tight Shut-Off in the Event of a Power Failure

 

Application:

• Liquid level management in vessels

• Superheat for direct expansion evaporators

• Brine temperature in chillers

• Hot gas for defrost

• Various other installations

 

MAXIMUM OPERATING TEMPERATURE (C)

150°

 

MAXIMUM OPERATING TEMPERATURE (F)

300°

 

MINIMUM OPERATING TEMPERATURE (C)

-40°

 

MINIMUM OPERATING TEMPERATURE (F)

-40°

 

MAXIMUM AMBIENT TEMPERATURE (C)

94°

 

MAXIMUM AMBIENT TEMPERATURE (F)

200°

 

MINIMUM AMBIENT TEMPERATURE (C)

-29°

 

MINIMUM AMBIENT TEMPERATURE (F)

-20°

 

MAXIMUM WORKING PRESSURE (BARG)

27.6

 

 

MAXIMUM WORKING PRESSURE (PSIG)

400

 

SEAT MATERIAL

PTFE

 

VALVE MATERIALS

External: Cast Iron, Internal: Stainless Steel

 

VALVE TYPE

H2 to H5

 

FLOW CAPACITY (SCFM AIR)

302 to 5849

 

FLOW CAPACITY (LBS. PER MIN AIR)

23 to 469

 

INLET CONNECTION

3/4" FPT to 1 1/4" FPT

 

OUTLET CONNECTION

1"FPT to 2"FPT

 

ORIFICE SIZE (MM)

15.875 mm to 34.925 mm

 

ORIFICE SIZE (INCH)

0.625" to 1.375"

 

PRESSURE RELIEF SETTING (BAR)

3.5 to 20.7 bar

 

PRESSURE RELIEF SETTING (PSIG)

50 to 300 psig

 

APPLICATION

Vapor Only

Clark Johnson Company, Inc.       2016