On-Road Fuel Systems | Parker Fluid Control Division

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, download the catalog below or 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

LNG HPDI TSOV & Check Valve

Normally closed LNG HDPI Tank Shutoff and Check Valves.

Stainless steel bodied with NBR seals
Maximum operating Pressure Differential of 300 Kgf/cm2 (TSOV) and 350 Kgf/cm2 (Check)
Orifice Size: 5mm (TSOV) and 4.7mm (Check)

Low Pressure Safety Shut Off Valve

Offering exceptionally high flow, Parker's two-way, normally closed valve is specifically designed for low-pressure CNG applications.

Bubble-tight maximum allowed leakage
ECE R110 approved valve, 3/8" and 1/2" NPT available

LPG Tank Control Valves

Used on-board propane powered vehicles including school buses, transit vehicles, delivery trucks, and a growing number of propane autogas applications.

Individual tank mounted supply and return valves
Piloted piston valve designs with an excess flow valve and check valve for enhanced performance
On-engine fuel rail valving incorporates both supply and bleed solenoid valves
Meets UL125 performance requirements
LPG Control Valves are suitable for many clean transportation applications