Over-Pressure Valves

Over-Pressure Valves
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Over-Pressure Valves

Product catalog summary
Features and Benefits:
  • Standard W60/W80 components with modular design for cost efficiency.
  • Adjustable-spring actuator for easy relief cracking pressure setting.
  • Actuator piston allows full valve opening for CIP cleaning without over-pressurization.
  • Multiple body styles for efficient cleaning and processing.
  • Various control options for feedback and automation.
  • W80 stem flush adapter available for aseptic applications.
Materials:
  • Product Wetted: ASTM 316L
  • Non-Product: ASTM 304
  • Seat Material: Tef FlowTM "P" (standard) and metal (optional)
  • Elastomers: FKM or EPDM
  • Finish: < 32Ra (<0.8 µm)
Sizes:
  • Actuator diameters: 4” (102mm), 5” (127mm), and 6” (152mm).
  • W61 air-to-raise valves: 1.5” (38mm) – 4” (102mm).
  • W63 air-to-lower: 2” (51mm) - 4” (102mm).
Pressure Ratings:
  • Varies with temperature and valve size, e.g., at 70ºF (20ºC), 1.0"/1.5" valves can handle 500 PSI (34.5 bar).
Applications:
  • Beverage: Beer, Cider, Soft Drinks, etc.
  • Food: Soups, Sauces, Vegetable Juices, etc.
  • Dairy: Milk, Cream, Whey, etc.
  • Pharmaceutical: Emulsions, Extracts, etc.
  • Chemical: Additives, Detergents, etc.
Notes:
  • Not ASME rated or suitable for tanks or pressure vessels.
  • Valves require adjustment and calibration upon installation.
Options and Accessories:
  • Port Options: Weld, S-Line, I-Line, etc.
  • Adapter Options: Standard and W80 adaptors for various applications.
  • Seat Options: Tef-Flow™ "P" and Metal for different temperature and pressure requirements.
Control Top Options:
  • Transparent Control Top for visibility of electrical components.
  • Various connector and interface options available.
  • Position indication and solenoid valve options for enhanced control.
Configurations and Theory of Operation:
  • Over-pressure protection using adjustable-spring actuators.
  • Air-to-Raise and Air-to-Lower configurations for different applications.
  • Pressure rise and reseating pressure considerations for optimal performance.
Specifications:
Detailed specifications for WR61 and WR63 series valves, including pressure ratings and actuator sizes. Pressure ratings are given in PSI and bar for various plug sizes ranging from 1.5 inches to 4 inches. Data on pressure changes per turn of the adjusting screw and maximum holding pressures are included.

Procedures:
Instructions for reseating pressure, indicating the total relief line pressure must drop by a specified amount for reseating to occur, detailed for different actuator relief scenarios.

Technical Data:
Additional technical data for different actuator sizes and their corresponding pressure ratings, highlighting variations in pressure changes due to differences in springs.

Design and Features:
The W60 series valves are described as safe, strong, and sanitary, with features such as long-radius bodies for superior cleaning, stationary seals, and spin-cleaning PTFE seats. Designed for long-lasting performance and easy maintenance, with modular bonnets and rugged control tops.

Recommendations:
Emphasizes reviewing valve features and port connections to determine pressure limitations. Notes that the WR63 is not available with a 1.5-inch body size due to pressure adjustment limitations.

Company Information:
SPX Corporation, based in Charlotte, North Carolina, is a global manufacturing leader. Includes contact information for SPX Flow Technology and notes that design features and materials are subject to change without notice.
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Catalog excerpts

Over-Pressure Valves-1

OVER-PRESSURE RELIEF VALVES >Waukesha Cherry-Burrell

 Open the catalog to page 1
Over-Pressure Valves-2

Protect your pump with an external overpressure relief valve. If pump discharge Over-Pressure Relief Valves pressure exceeds the set cracking-pressure, the valve will open to a relief path. • Utilizes standard W60/W80 single seat components offering machined-from- The adjustable-spring actuator allows bar bodies, modular design, and low cost of ownership users to set the desired relief cracking • Adjustable-spring, maintenance-free actuator allows easy setting of desired pressure right at the valve by simply turning relief cracking pressure the adjustment screw. The relief pressure • Actuator...

 Open the catalog to page 2
Over-Pressure Valves-3

Typical product applications Beverage Beer Cider Fruit Drinks Liquid Sugar and Glucose Soft Drinks Wine Wort Food Animal Oils Flavorings Pet Food Soups and Sauces Exterior Adjustment with sealed cap to safeguard threaded area. There are no exposed threads. Vegetable Juices Vegetable Oils Vinegars Dairy Cream Positive-Stop prevents overloading of spring and engages with the sealed cap to lock in the setting. Cracking pressure adjustment range from zero (fully unloaded) to maximum published holding pressure of standard, heavyspring actuators. Milk Milk Concentrate Raw Milk Skimmed Milk Whey Whey...

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Over-Pressure Valves-4

H i g h Te m p High Pressure Pressure Relief High Pressure High Flow Large Particulate port Options W = Weld S = S-Line I = I-Line (female - 15I) 14I = I Line (male - 14I) B = Bevel Seat (male threaded end) F = Flange Q = Q-Line ADAP T E R Options The ‘standard’ adaptor is used on all models of short and long stroke W60 Series valves. Machined from SS 316L bar with a thick cross-section, the adaptor adds strength to the valve body and provides alignment for the stem. The outer perimeter seals to the valve body with an O-ring that is located forward to the product zone to minimize crevices. The...

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Over-Pressure Valves-5

C ontrol TOP O ptions WC B B R A N D E D C ONTR OL TOPS WR 6 3 / W R 8 3 O nly Product Benefits And Features • Transparent Control Top keeps all electrical components visible. • Maintainable, designed with the user in mind, making assembly and troubleshooting worry free and easy. • SPX uses the industry’s most widely recognized electrical components, so access to off the shelf replacement parts is easy, ensuring quick delivery and less down time. • NEMA 4x (IP64) • Stainless Steel Control Top Option Connector Options • S/O Cord Grip for hard wire (std) • Quick Disconnect Pin Connectors Interface...

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Over-Pressure Valves-6

Over-Pressure Protection on a Positive-Displacement Pump using the Adjustable-Spring Actuator Capacity Example: • Model 30 Universal PD Relief Path • Air-to-Raise Configuration Use the W61 Holding Pressure Charts in the Operation and Maintenance OUT manual or datasheet DS-1201 to select a maximum holding-pressure higher than the desired cracking pressure for a given plug size. Use the heavy-duty actuator listings i.e. 4HAR. WR61 holding pressures also listed on page 10. W61 AR/HAR (air-to-raise) - Standard Stroke Valve S ize - inches ( mm ) - P ressure in P S I ( bar ) Actuator S ize in ( mm...

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Over-Pressure Valves-7

Over-Pressure Protection on a Positive-Displacement Pump using the Adjustable-Spring Actuator For Free-draining, minimal dead-leg relief piping, use the WR63 valve, CD body and an Air-to-Lower, adjustable-spring actuator. If pump discharge pressure exceeds the set cracking-pressure, the valve will open and relieve the over-pressure to pump suction. Cracking pressure adjustment range from zero (fully unloaded) to maximum published hold pressure of standard, heavy-spring actuators. • Piston for full opening/by-pass. Heavy-Duty construction with (3) bearing locations and sealed, welded construction....

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Over-Pressure Valves-8

Over-Pressure Protection using a Reduced-Seat Valve and the Adjustable-Spring Actuator Reduced-Seat Valve Bodies Capacity Example: • Model 220 Universal PD • 4" (102mm) Ports, 115 gpm (26m³/hr) • Cracking Point: 170 psi (12 bar) • Cross-flow, minimal dead-leg • Air-to-lower (AL) configuration Use the W63 Holding Pressure Charts in the Operation and Maintenance manual or datasheet DS-1201 to select a maximum holding-pressure higher than the desired cracking pressure for a given plug size. Use the heavy-duty actuator listings i.e. 4HAR. WR63 holding pressures also listed on page 10. W63 AL/AHL...

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Over-Pressure Valves-9

A D D I T I O N A L T E C H N I CA L DATA WR61/WR63 Over-Pressure Valve Pressure Rise Utilizing either Air-to-Rise or Air-to-Lower adjustable-spring actuators respectively WR61T 1.5" (38) 4RHAR Actuator Relief @ 25 gpm (6 m3/hr) will produce 20 psi (1 bar) added pressure rise. (See notes below) Reseating Pressure: Total relief line pressure must drop by 20 psi (1 bar) for reseating. WR63CD 4.0"(102mm)/ 2.5"(64mm) 6RHAL Actuator Relief @ 115 gpm (26 m3/hr) adds 45 psi (3 bar) pressure rise with the 2.5" (64 mm) plug. (See notes below) Reseating Pressure: Total relief line pressure must drop by...

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Over-Pressure Valves-10

A D D I T I O N A L T E C H N I CA L DATA W R 6 1 DATA Maximum Holding Pressure* Per Valve Size From W61 Valve Chart Actuator S ize psi ( bar ) Pressure* Change Per Turn of Adjusting Screw P lug S ize inches ( mm ) Ac t u a l p r e s s u r e ch a n g e p e r t u r n o f a d j u s t i n g s c r e w m a y b e d i f f e r e n t d u e t o variations between springs. W R 6 3 DATA Maximum Holding Pressure* Per Valve Size From W63 Valve Chart P lug S ize inches ( mm ) Pressure* Change Per Turn of Adjusting Screw Ac t u a l p r e s s u r e ch a n g e p e r t u r n o f a d j u s t i n g s c r e w m a...

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Over-Pressure Valves-11

W 6 0 S eries Valves : S afe , S trong and S anitary Sanitary Design for CIP • Long-radius bodies are free-draining without recesses for superior cleaning performance. • Stationary seals close to the product zone: choice of O-ring, quad or wiping-stem seals. • Spin-cleaning, Snap-on PTFE seats for reliable sealing: choice of PTFE, PEEKTM, Tri-Ring, Metal or bonded rubber. Long lasting and Easy to Maintain • Machined-from-Bar construction with thick walls and interlocking bodies to resist distortion and active plant environments. • Multiple PTFE bearings for stem alignment and strength. • Long...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.