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parker refrigeration Clark Johnson Co

Refrigerant Solenoid Valves

 

Solenoid Valves- S7A, S7AL, S7F

Type S7A is a very versatile pilot operated, positive lift, solenoid valve that may be used in most liquid, or hot gas lines.

  Product Overview

     Specification

Parker’s S7 series solenoid valves are available in a low pressure drop version that are capable of opening with a pressure drop less than 1 psi across the valve. This feature makes them ideal for applications where low pressure drop is important, such as low pressure liquid feed lines. The S7 is a pilot operated, positive lift, cast iron bodied valve. The valve may be opened by means of the manual opening stem for servicing or in case of electrical power failure. The Type S7 Solenoid Valve is furnished with FPT Internal NPT (U.S. Standard Taper Pipe Thread), Socket Weld, Weld Neck or ODS (solder over copper tubing of given diameter) connections.

 

Markets:

• Industrial Refrigeration

• Commercial Refrigeration

 

Features and Benefits:

 

• Standard Coil Housing Meets NEMA 3R and NEMA 4- Rain Tight

• Coil Housing Surpasses NEMA Salt Spray Test

• Molded Class “F” Coil Construction

• Pilot Light Available

• Stainless Steel Needle

• Manual Opening Stem

• Design Pressure (MRP): 27.6 bar (400 PSIG)

• Positive Lift, Held Open Electrically

 

Application:

• S7A - Most Liquid or Hot Gas Lines

• S7AL- Low Pressure Drop, Liquid Transfer from Intermediate to Low Pressure Vessels, and Equalizer Lines

 

VALVE TYPE

S7A, S7F, S7AL

 

MAXIMUM RATED PRESSURE (BAR)

27.6bar or 28bar

 

MAXIMUM RATED PRESSURE (PSIG)

400psig or 406psig

 

MINIMUM WORKING TEMPERATURE (C)

-50°C

MAXIMUM WORKING TEMPERATURE (C)

105°C

 

MINIMUM WORKING TEMPERATURE (F)

-60°F

MAXIMUM WORKING TEMPERATURE (F)

220°F

 

FLOW COEFFICIENT (KV)

8.7 Kv, 9.2 Kv, 42 Kv

 

FLOW COEFFICIENT (CV)

10 Cv, 11 Cv, 49 Cv

 

PLATING

No Plating

 

SEAT MATERIAL

PTFE

 

OPERATION STYLE

Standard, Electrically Lifted Seat, Low Pressure Differential

 

PORT SIZE

3/4" to 2"

 

STRAINER TYPE

Without Strainer or With Strainer

 

FLANGE TYPE

FPT, ODS, SW, Weld Neck, No Flange

 

CONNECTION

None or 3/4" to 2"

 

COIL TYPECHECK VALVE TYPE

None or with CK-4

 

BODY MATERIAL

Gray Iron, GGG-40.3

s7a solenoid valve clark johnson co

Clark Johnson Company, Inc.       2016