
Gold Ring Valves
Reliable Fluid Control for Demanding Industrial Applications
Parker Gold Ring Valves provide dependable fluid-control solutions for a wide range of industrial and process applications where consistent performance, effective sealing and reliable flow control are essential.
Engineered with a focus on durability, operational reliability and precise fluid control, Gold Ring valves are designed to manage the flow of liquids and gases across demanding operating environments.
Their robust construction and sealing technology help provide reliable operation under varying pressure, temperature and flow conditions, making the Gold Ring portfolio suitable for both general industrial duties and critical fluid-control applications.
Engineered for Performance
Parker Gold Ring valve technology is designed around key requirements of modern fluid-control systems:
Reliable flow control and regulation
Robust construction for demanding operating conditions
Effective sealing performance
Resistance to pressure fluctuations
Long operational service life
Multiple valve configurations
Broad media compatibility depending on materials and seals
Flexible electrical and connection options
Versatile Valve Configurations
The Parker Gold Ring portfolio provides solutions for different system architectures and fluid-control requirements.
Depending on the selected product series and configuration, solutions can include:
2-Way Solenoid Valves
3-Way Solenoid Valves
4-Way Solenoid Valves
Direct-Acting Valves
Pilot-Operated Valves
Normally Open Configurations
Normally Closed Configurations
General-Purpose Fluid Control
Specialized Application Valves
This flexibility allows engineers to select a valve according to the specific requirements of media, pressure, temperature, flow rate, electrical supply and operating environment.

Hydrogen Low Pressure Shut-Off Valve
Designed for use in Hydrogen systems up to 22 Bar (305 PSI) the low pressure shut-off valve maximized orifice and flow diameters enable high flow coefficient in a compact size. Different coils and connections are available depending upon customer requirements as well as a cartridge version for full design flexibility. Valve Function: 2/2 Normally Closed Media: Gasesous Hydrogen at -40°C to +85°C Internal Seal Material: HNBR / Buna-N

Hydrogen High Pressure Regulator
Designed for use in high pressure Hydrogen systems up to 700 Bar (10,000 psi). Heavy duty transportation grade pressure reducing regulator for environmentally harsh applications Dome pressure bias capable (1:1) ratio for turbocharged ICE applications Friction damped piston and poppet to reduce potential of flow oscillation Pressure balanced poppet for reduced supply pressure effect Wear resistant internals Hydrogen compatible materials of construction Various outlet pressure levels available Available in both SAE J1926 o-ring and threaded cone and sleeve (Parker Autoclave) porting

Hydrogen High Pressure Solenoid Shut-Off Valve
Designed for use in high pressure Hydrogen systems up to 700 Bar (10,000 psi). 2/2 Normally Closed Max. Inlet Pressure – 350/700 Bar (5,000/10,000 psi) Operating Temperature: - 40°F to 240°F / - 40°C to 115°C Orifice Size: 8mm Voltage: 12 or 24 vDC and (AC voltages available upon request) Various Connections – SAE J1926, Modified SAE J1926 (Parker H2P – EC79), Parker Autoclave

Hydrogen Flow and Pressure Control Module (HFPCM)
Designed for use in Hydrogen Fuel Cell vehicles where precision fuel flow control for Hydrogen is required to the Fuel Cell Stack. Inlet Pressure: 7 ~ 16 Bar Operating Pressure – 116 - 175 psig (8 ~ 12 Bar) Max Flow: 1700L/min Integrated shut-off and Proportional valve Optional integrated Pressure Sensor port Operating Temperature: - 40°F to 248°F / - 40°C to 120°C

Hydrogen Fuel Cell & LNG Low Pressure Shutoff Valve
Pilot-acting valve designed for Natural Gas and Hydrogen applications. Two-way Normally Closed Cv = 2.8 Available with different operating voltages.

Hydrogen Fuel Cell Exhaust Valve
Hydrogen fuel cell exhaust valve is designed as a shutoff with heating valve. Aluminum bodied with HNBR seals Excellent temperature performance: -40°C to 120°C Operating Pressure 1~2.5 barg

Hydrogen Fuel Cell High Flow Piston Operated Proportional Valve
Pilot proportional valve designed to control large flow control without the high-speed turbulence and low power consumption. Linear flow control due to low friction design Excellent temperature performance: -40°C to 120°C Operating Pressure 1~15 barg

Hydrogen Fuel Cell Diaphragm Operated Proportional Valve
Proportional valve designed to control large flow control without the high-speed turbulence. Pressure-balance design Linear flow control due to low friction design Excellent temperature performance: -40°C to 120°C Operating Pressure 1~15 barg

Electric Bus Battery Cooling
Standard and custom engineered coolant control valves for on-board battery cooling and thermal management systems in the emerging electric vehicle market. Debris tolerant, high flow P/N 72228BN5VV00, 7221GBN64N00, 7322GBN64N00, 7321GBN64N00 Custom designed to suit application requirements

Autonomous Vehicle Fluid and Air Systems
Custom engineered valve manifold solutions for the emerging autonomous vehicle market featuring air and fluid control in space saving designs. Custom designed to suit application requirements

Anti Surge Valve
Engine protection valve designed for quick release of redundant turbo air when engine speed is reduced. Voltage Range: DC 24V +/-10% Max. Operating Pressure Difference: 2.5 bar at the voltage range

Bi-Fuel Directional Control Valve (RTT)
3/2 way direct operated Solenoid valve for LNG fuel systems designed to provide flow diversion of diesel and/or natural gas. The unit prevents backflow when the valve is de-energized and leakage when the valve is energized. Flow sequence: ON – OFF Fluid Media: Natural gas, Diesel fuel, Bio fuel (max 7%) Nominal Operating Voltage: 24V Ambient Temperature: -30°C up to 120°C (operating and storage) Vent Gas Temperature: -30°C up to 120°C

CNG Pressure Regulators
Used on-board CNG powered vehicles including medium and heavy-duty trucks, bus fleets, transit vehicles, delivery trucks, and a growing number of CNG applications. For additional information, click the Learn More link or download the Installation, Operation, and Maintenance Manual here. All-inclusive design reduces installation time and results in fewer connections & leak points Piston-style regulator with integrated heat exchanger and pressure relief valve offers enhanced performance Integrated solenoid shut-off valve, coalescing filter, and optional pressure sensors for ease of assembly Optimized to maintain stable pressures and high flow at low tank pressures Extreme low-temperature seals ensure reliable operation in severe environmental conditions CSA, ECE-R110, and INMETRO certified

Fuel Cut-Off Valves
Safety shut-off valve for LNG fuel systems designed to stop fuel flow to the engine when ignition is switched off. Alternative to traditional liquid-based SCR systems Wide range of application Suitable for LNG Trucks, Buses and Marine applications

High Pressure Safety Shut Off Valve
High-pressure, high-flow, two-way normally closed valves offer all stainless steel construction with optimum performance. Bubble-tight maximum allowed leakage ISO 15500/ECE R110 approval in process