Ammonia Valves

Product Details:

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.

Product Details:

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. ).

Product Details:

Product Details:

Ammonia Weldable Valve Angle are designed for heavy duty refrigeration service including ammonia and non corrosive gases. They eliminate flanged or screwed connection, decreasing weight and simplifying installation. Valves are directly welded on the pipe line.

Advantages :

• Easy to Install
• Low Pressure Drop
• Easy Maintenance
• Light Weight
• Compact Eliminates leakage from flanged or Screwed joints Can accept flow in both direction.

• Non metallic front and back seating
• Individual box packing
• No need to change complete seat nut as only
• Teflon can be changed

Product Details:

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:

Product Details:

Product Details:

Regulating Valve a device used to regulate temperature, pressure, flow rate, and other parameters. Regulating valves are used in automatic control and regulating systems and influence the course of technological and heat-and-power engineering processes in accordance with the supplied instructions

Product Details:

Product Details:

Technical Data

• Applicable for the refrigerants R717 (ammonia, Nh3), HFC, HCFC  (e.g. R22, R134a, R404a) and other refrgi erants dependent  on  sealing  materials  compatibility  within  a temperature range of- 3o·cI +1oo·c
• Flammable hydrocarbons are not recommended.

Pressure

• Pressure settingrange:10-25 bar (145- 363 psig).the valve is designed for strength test : 40 bar (580psig). leakage safety: Same as setpressure.
• For  further information  pel ase contact  your local Castle Sales Distributor.

Important:

• The CSRVA safety relief  valve is dependent on the back pressure ( if the back pressure is higher than the atmospheric
• pressure, the opening pressure willbe higher than stated set pressure).
• Special circumstances such as vibrations (which should be avoided) and oscillatingpressure may
• require  an increased  difference between  the operational pressure and the closingpressure.

Pressure Setting:

• The operating pressure of the plant should be at least 15% below the set pressure.Thisallows a perfectre-sealing of the safety relief valve after havni g been activated.
• Temperature Range:-30/+1oo•c