Highlights :

• Applicable to R717(Ammonia), R744(CO2), HCFC and HFC.
• Also utilized in chemical and petrochemical applications.
• Quick and simple valve maintenance. It requires less effort to replace the top part and no welding is required.
• Designed to operate at very low differential pressure of 0.58 psi g(0.04bar).
• Modular Concept:
• Each valve body is available with a number of different sizes and connection types.
• Possible to transform/convert MSCA-S and MCHV into any other product of MSVL family (stop valve, regulating valve and strainer) by replacing the entire top part.
• Each valve type is clearly mentioned with type, size and operating range.
• Designed with an integrated damping chamber preventing valve flutter in case of low refrigerant velocity and/or low density.
• Quite easy to disassemble for inspection and maintenance.
• Damping facility provide protection against pulsation.
• Internal backseating enables the replacement of the packing gland (spindle seal) while MSCA valve is in working condition.
• Optimal flow characteristics ensure quick opening to the fully open condition.
• Valve body and bonnet material is low temperature steel as per PED norms.
• Maximum working pressure: - 754 psi g (52 bar g).
• Operating temperature range: - 60 to +150°C (– 76 to 302°F).

Introduction

Refrigerants : Shut off valves are applicable to all common non-flammable refrigerants including R717 and non-corrosive gases/liquids dependent on sealing material compability. For further information please see installation instruction for CSVA. These Shut off Valves are used in the Industrial Refrigeration system.

Temperature range

Standard version : - 46/+150°C

Pressure range shut off valves are designed for max, working pressure CSVA-2 DN-15 to DN-40 : 25 bar (362 psig) CSVA-4 DN 15 to DN 200:40 bar (580 psig)

Features

• Housing : Made of special, cold resistant steel.
• Valve cone : Shut off valves cone can be turned on the spindle, thus there will be no friction between the cone and the seat, when the valve is opened and closed.
• Spindle : Made of polished stainless steel so that PTFE and Graphite gaskets are not damaged.
• Sealing : Spindle sealing is done with PTFE and Graphite gaskets assuring 100% sealing.

Design

• Housing : Made of special, cold resistant steel.
• Connections : Available with the following connections: - Butt-weld ANSI DN15-40(B 36.10 Schedule 80) Butt-weld ANSI DN 50(B 36.10 Schedule 40) Butt-weld ANSI Socket weld (ANSI B 16.11) - DN 15 - 40 % -1% in.).
• Spindle : Made of polished stainless steel so that PTFE and Graphite gaskets are not damaged.
• Sealing : Spindle sealing is done with PTFE and Graphite gaskets assuring 100% sealing.

Introduction

• Refrigerants : Applicable to HCFC, HFC, R717(Ammonia) and R744 (CO2). For further information please see installation information for COFV.
• Standard version : - 46/+150°C
• Pressure range : The valves are designed for max, working pressure 40 bar g(580 psig)

Features

Three functions in one valve. The OFV valve combines the functions of an overflow valve, a check valve and a stop valve COFV are angle-way overflow valves, which have adjustable opening pressure and cover the differential pressure range 2-8 bar (29-116 psi). The valve can be closed manually, during plant service and have back seating, enabling the spindle seal to be replaced with the valve still under pressure. The valves are specially designed to prevent fluttering due to low velocity In consequence it is possible to apply the valves with wide fluctuations in capacity demands and maximum performance to part load. A flexible O-ring provides perfect sealing over the seat.

Installation

The valve is designed to resist very high internal pressure, but as to the pipe system in general, hydraulic pressure caused by thermal expansions in entrapped refrigerants should be avoided.

Introduction : 

• Refrigerants : Applicable to all common non flammable refrigerants including R717 and non corrosive gases/liquids dependent on sealing material compatibility.
• Standard version : - 46/+150°C
• Pressure range : Range The valve are designed for max. working pressure 40 bar g (580 psig).

Features

The valve Designed to open at a very low differential pressure of 0.04 bar (0.58 psig) Designed with a built-in damping chamber preventing valve flutter, due to low refrigerant velocity and low density Easy to disassemble for inspection and service Internal back seating enables replacement of the spindle seal whilst the valve is active in under pressure Optimal flow characteristics ensuring quick opening to the fully open position.

Housing : Made of special, cold resistant steel.

Valve cone : The valve cone can be turned on the spindle, thus there will be no friction between the cone and the seat, when the valve is opened and closed.

Spindle : Made of polished stainless steel so that PTFE and Graphite gaskets are not damaged.

Sealing : Spindle sealing is done with PTFE and Graphite gaskets assuring 100% sealing.