Asha Enterprises

Ammonia Check Valve is self-activating safety that permit gases and liquids to flow in only one direction. The purpose of a check valve is to prevent process flow from reversing in the system which could damage equipment or upset the process

Product Details:

• Quick and simple valve maintenance. It requires less effort to replace the top assembly and no welding is required.
• Modular concept: Each valve body is available with a number of different sizes and connection types.
• Possible to transform/convert msva-s into any other product of msvl family
• Check valves, regulating valve and strainer) by replacing the entire top part.
• Optional accessories:
• For frequent operation heavy duty hand wheel.
• For infrequent operation seal cap.
• Available in angleway and straightway forms with standard neck.
• The valves and seal caps are prepared for sealing, to avoid operation by unauthorised person.
• Internal  back seating
• Internal metal backseating : dn 15 - 65 (½ - 2½ in. ).
• Internal teflon backseating : dn 80 - 200 (3-8 in. ).
• Can be used for flow in both directions.
• Furnished with stainless steel bolts
• Valve body and bonnet material is low temperature steel as per ped norms.
• design connections
• Msva are available with the following connections:-
• Butt-weld din(en10220)- dn 15 - 200(1/2 - 8 in. ).
• Butt-weld ansi(b36. 10 schedule80)-dn15-40(½ – 1 ½ in. ).
• Butt-weld ansi(b36. 10 schedule40)-dn50-200(2 – 8 in. ).
• Socket weld (ansi b 16. 11)-dn 15 - 50(½ - 2 in. ).

Introduction

• Applicable to all common non flammable refrigerants including R717 and non corrosive gases/liquids dependent on sealing material compatability. For further information pl ease see installation instruction for CSVA
• Temperature range: Standard version : - 46/+150 Degree c

Pressure range

• The valves are designed for max. working pressure
• CSVA-2 DN-15 to DN-40: 25 bar (362 psgi  ) CSVA-4 ON 15 to ON 200 :40 bar (580 psig)

• 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.