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Parker Electronic Valve - PEV
Parker's PEV series of electronic modulating valves provide enhanced control for industrial refrigeration systems.
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Installation Bulletin - Parker Electronic Valve (PEV)
Product Bulletin 24-00 D - Parker Electronic Valve (PEV)
Description
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The PEV provides precise control of flow for liquid level, expansion, superheat, and temperature control applications. The stainless steel construction helps overcome corrosion problems encountered in harsh environments. The valve's weld-in feature design reduces potential for connection leaks. This design has a higher working pressure, a greater working temperature range and higher flow capacities than competitive products. These valves provide long-term performance with replaceable internal components.
Market:
• Industrial Refrigeration
• Commercial Refrigeration
Features and Benefits:
• Suitable for ammonia, CO2, R-134a, R-404a, R-410a and other common refrigerants
• Stainless steel construction increases product life cycle
• Lightweight construction
• Cartridge based design simplifies service and eliminates body wear
• Interchangeable with other P-Series offerings
• Works with any 4-20 mA controller
• Bright LED Display
• Password protection prevents tampering
• Alarm notification
• IP67/NEMA 6 rated
• Parker Backup Module (PBM) available
Function and Design:
• The Parker Electronic Valve (PEV) is an electronically controlled valve that modulates the flow of refrigerant in industrial refrigeration applications. Common applications include those where load fluctuations are great such as chilling and cooling applications and where precise control over temperature or humidity is important. The PEV consists of two major components; the electronic actuator and the sealed valve body.
• The actuator is contained in an IP67 (NEMA 6) housing. The valve body is made entirely from stainless steel, designed to resist corrosion, and work in a variety of industrial refrigeration applications. The PEV is powered by 24 VDC and accepts a 4-20 mA control signal. The PEV will modulate the flow of refrigerant by opening and closing based on the control signal input. The actuator is automatically calibrated when power is established. When the 4-20 mA signal comes back in range after being out of range, or when manually requested by the user. At 4 mA the valve will be closed, and at 20 mA the valve will be 100% open, unless the direction has been reversed at the time of setup.
• The PEV is available with an optional Parker Backup Module (PBM) that will place the valve in a user-defined position in the event of a power loss. After the calibration cycle, the PEV actuator will position the valve based on the control signal input.
• The PEV valve is comprised of a stainless steel 52 bar (754 psi) rated housing. The PEV valve is modulated by means of a magnetic coupling. The magnetic coupling drives a screw mechanism which opens and closes the valve plug.
Application:
• Industrial Refrigeration
• Liquid Level Control
• Expansion Control
• Superheat Control
• Temperature Control
Description
Performance Characteristics
Model Number
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Maximum Operating Pressure
52 bar
754 psig
Minimum Liquid Temperature
-60 °C
-76 °F
Maximum Liquid Temperature
120 °C
248 °F
Minimum Ambient Temperature
-40 °C
-40 °F
Maximum Ambient Temperature
50 °C
122 °F
Maximum Pressure Differential
52 or 28 bard
754 psig or 406 bard psid
Electrical Requirements
24 VDC @ 1.3 Amp
Enclosure Type
IP67 / NEMA 6
Port Size
25 to 40 mm
1" to 1-1/2" inch
Capacity Plug Type
40% Reduced Plug or Standard Plug (based on port size)
Flow Coefficient
4.3 to 26.9 Kv
5 to 31.1 Cv
Connection Type
Butt Weld DN (BW DN), Butt Weld ANSI (BW ANSI) or Socket Weld (SW)
Connection Size
20 to 32 mm
3/4" to 1-1/2" inch
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users having technical expertise. The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors. To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems...
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