Solutions

Customized Valve Solutions

From water valves to flow regulators, Robertshaw’s customized valve solutions meet your exact specifications and performance requirements. They are the top choice for OEMs around the world for both residential and commercial applications.

S-45 Series Water Valve

S-45 Series 1

S-45 Series Water Valve

Application: Commercial Appliance

The Robertshaw^® S-45 Series Water Valve is designed as a general purpose valve for energy conserving plumbing and heating applications. Commercial applications include hands-free faucets, boilers, icemakers and coffee brewers. The S-45 is an inlet valve with a brass body. The S-45P is a similar valve with a plastic body.

Features and Benefits:

Pilot operated design for high flow applications with minimal power requirements
In-line “Y” serviceable filter
Serviceable strainer incorporated for the protection of both the valve and the appliance
Encapsulated coil provides high mechanical and dielectric strength, and is moisture resistant
EPDM diaphragm (Viton available by request)
Options available to comply with lead content requirements for “lead free” plumbing as defined by California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water Act

Specifications:

Body Material: Brass or Glass filled polypropylene
Terminals: 1/4” Male spade
Electrical Rating: 120V AC, 240V AC, 12V AC, 24V AC, 12V DC, 24V DC
Power Consumption: 7 Watts
Operating Cycle: Continuous
Inlet: 3/8”-18 NPT; 1/4”-18 NPT
Outlet: 3/8”-18 NPT; 1/4”-18 NPT, 7/16”-20 Flare
Coil Insulation: UL rated Class A (105°C)
Flow Rate: Up to 5.0 GPM
Operating Pressure: 120 PSI maximum
Differential: 120 PSI maximum
Maximum Water Temperature: 180°F (82°C)

Agency Certifications:

UL MH6499
CSA
ANSI/NSF Standard 169

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S-55 Series Water Valve

S-55 Series

S-55 Series Water Valve

Application: Commercial Appliance

The Robertshaw^® S-55 Series Water Valve is a general purpose, normally-closed valve used to purge residual water or water with compatible chemicals from commercial ice machines, dishwashers, evaporators, and steam tables.

Features and Benefits:

Direct-acting design provides high flow at low head pressure
Mechanical flapper allows large particles or debris to easily pass through
Encapsulated coil provides high mechanical and dielectric strength, and is moisture resistant
High temperature (HT) version available

Specifications:

Terminals: 1/4” (6.35mm) Male spade
Electrical Rating: 120V AC, 60 Hz; 208/230V AC, 60 Hz; 240V AC, 50/60 Hz, 24V AC 60 Hz
Operating Cycle: 28 Watts: 30 seconds ON, 3 minutes OFF; 38 Watts: 75 seconds ON, 10 minutes OFF
Coil Power: 28 Watts
Body Material: Polypropylene
Inlet Size: 11/16” ID hose barb
Outlet: 5/8” ID hose barb
Operating Pressure: 7 PSI (0.5 bar) maximum
Ambient Temperature: 77°F (25°C) maximum
Flow Rate: 5 GPM @ 6 PSI
Coil Insulation: UL rated Class A (105°C)
Differential: 7 PSI (0.5 bar) maximum
Maximum Water Temperature: 165°F (73°C), HT version rated up to 210°F (98°C)

Agency Certifications:

UL MH6499
ANSI/NSF Standard 169

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GS-56 Series Water Valve

GS-56 Series

GS-56 Series Water Valve

Application: Commercial Appliance

The Robertshaw^® GS-56 Series Water Valve is designed to dispense water in coffee and other hot beverage vending machines. This direct-acting, gravity-fed dump valve is capable of providing high volume liquid flow at a minimum head pressure and a temperature of 200°F (93°C).

Features and Benefits:

External flow adjustment screw slotted or hex
Vent tube option available
Polysulfone body material for good chemical resistance and high temperature stability
Diode rectified coil for quiet AC operation
Red silicone diaphragm material for good chemical and scaling resistance
Approved for food zone contact

Specifications:

Terminals: 1/4” (6.35mm) Male spade
Electrical Rating: 120V AC, 240V AC
Power Consumption: 12 Watts, 28 Watts, 35 Watts
Body Material: Polysulfone
Inlet Size: 5/8” OD with “O” ring groove
Outlet: 1/2” ID hose barb
Operating Pressure: 1-1/2 PSI maximum
Operating Cycle: 50% (12 Watts); 1 minute ON, 6 minutes OFF (35 Watts)
Ambient Temperature: 77°F (25°C) maximum
Differential: 1-1/2 PSI maximum
Coil Insulation: UL rated Class A (105°C)
Maximum Water Temperature: 200°F (93°C)
Flow rate: Up to 1.5 GPM

Agency Certifications:

UL MH6499
ANSI/NSF Standard 169

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FP35/45 Series Freeze Protection Valve

FP35-45 Series

FP35/45 Series Freeze Protection Valve

Application: Commercial Appliance

The Robertshaw^® FP35/45 Series Freeze Protection Valve is designed to protect solar collectors and exposed pipes from freezing. The valve operates without any electrical power or sensors. In solar applications, the gate of the valve typically opens as temperatures decrease, allowing the liquid to spill and to be replaced by warmer water when the water is near the freezing point in solar panels. When warmer water enters, the gate of the valve is closed and the removal of water is interrupted.

Features and Benefits:

Protects solar collectors and exposed pipes from freezing
Easily installed on existing systems
Corrosion and tamper resistant cover
Ideal for back-up freeze protection
Anti-siphon and alternate discharge port

Specifications:

Nominal start-to-open water temperature is 38°F (3.33°C) (FP-35) or 43°F (6.11°C) (FP-45)
Maximum operating pressure: 125 PSI
Inlet size: 1/2” brass MPT
Outlet size: 1/4” plastic pipe or 5/8” ID hose
High temperature U.V. stabilized body material
1/2” brass male pipe thread inlet port for positive seal
Standard low lead brass

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Quick-Connect Unions and Transition Fittings Series

Quick-Connect Unions

Quick-Connect Unions and Transition Fittings Series

Application: Commercial Appliance

Robertshaw^® offers a full line of quick-connect unions and transition fittings for residential refrigeration and commercial applications. These products allow an easy and reliable connection for either polyethylene, polypropylene, or soft metal tubing.

Features and Benefits:

Constructed using NSF approved materials
Color coded body and collets based on tubing diameter
Double O-ring seal against tube
Rotating collet for anti-scratch tubing interface
Optional clip protects against accidental disengagement

Specifications:

Connections: 1/4” (6.35mm), 5/16” (8mm)
Body Material: Polypropylene
Body Orientation: Straight (180°), Right angle (90°)
Operating Pressure: 150 PSI maximum

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G Series Flow Regulators

G Series 1

G Series Flow Regulators

Application: Commercial Appliance

The Robertshaw® G Series Flow Regulators, formerly branded Dole, are designed for water and energy critical applications. The wide range of flexible orifice designs tightly control the desired flow output over a wide pressure drop range. The G Series is used in a broad range of applications including tankless heaters, cooling towers, fan coils, water softeners, pumps, drinking fountains, eye washes, fire sprinklers, filling equipment, dispensing machines, and water filters..

Features and Benefits:

Threshold pressure acts as a fixed orifice (Flow Characteristics on next page)
Orifice maintains desired output even when threshold points cause the insert to distort (Chart on next page)
Flow rates maintained to within ±15% up to a pressure drop of 125 PSI (Flow rate varies due to manufacturing tolerances and water temperatures)
Regulators meet up to a maximum system pressure of 200 PSI
Multi-orifice flow inserts in regulators with rates between 1 GPM and 4 GPM break up the water discharge pattern and minimize the sound made when water passes through the restriction

Specifications:

Body Material: steel, stainless steel, brass
Body Configuration: Straight through
Inlet and Outlet Configurations range from 1/8″ flare to 8″ MNPT
Maximum System Pressure: 200 PSI

Agency Certifications:

Most models meet the NSF low lead requirements

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THE ROBERTSHAW DIFFERENCE

With unmatched flow-control expertise, rapid development capabilities, strategically located manufacturing and an engaged team driven by collaboration and innovation, we’ll help you achieve extraordinary outcomes.

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