MSVA Ammonia Stop Valves are accessible with Standard neck (MSVA-S) in angle way and straightway variants. Ammonia stop valves are specially designed to meet all modern refrigeration application necessities and favorable flow characteristics. These Ammonia Stop valves are very easy to disassemble and repair when required. The Ammonia stop valve cone is intended to ensure perfect sealing and withstand a high pulsation and vibration, which can be present particularly in the discharge line. The MSVA is furnished with internal back seating support/enabling the shaft seal (packing gland) to be replaced while the Ammonia stop valve is still under working condition.
Highlights
Applicable to R717(Ammonia), R744(CO2), HCFC and HFC.
Also utilized in chemical and petrochemical applications.
Each valve type is clearly mentioned with type, size and operating range.
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 (stop/check valves, regulating valve and strainer) by replacing the entire top part.
Optional accessories:
For frequent operation heavy duty hand wheel can be supplied.
For infrequent operation seal Cap can be supplied
Available in angleway and straightway forms with Standard neck.
The valves and seal caps are prepared for sealing, to avoid operation by unauthorised person, utilizing a seal wire.
Internal back seating:
Internal metal backseating: -DN 15 - 65 (�½ - 2�½ in.).
Internal TEFLON backseating: DN 80 - 200 (3-8 in.).
Can be used for flow in both directions.
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 +150C ( 76 to 302F).
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Nominal diameter: DN15-DN250 Nominal pressure: 4MPa Applicable medium: R12, R22, R502, R134a, R404a, R507, R717 and other refrigerants. Applicable temperature: -50 + 150
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