An extensively tested, inexpensive and easy to operate valve. PowerHalt’s PH2 comes with various control and actuation options that cover a broad range of industry applications & requirements. Custom kits are available for most pickup truck applications.
Search for all PH2's light duty applications or view the PH2 application guide for all applications.
PH2 Application GuideDon't see the option you were looking for, or need help identifying your optimal solution? Contact Customer Support at 800.663.0096, available Monday - Friday 6:00am to 4:30pm PST or submit a support request and we'll get back to you ASAP.
PH2 PowerHalt air intake emergency shut-off valves range from basic manual pull cable valves to fully automatic manual reset systems.
PH2 Kits Include:
Please see the Applications Guide for our full list of applications. If you need assistance finding the right Shut-off Valve for your vehicle or equiptment call our customer support line at 800.663.0096.
All of the manual reset PowerHalt Shut-Off Valves (PH1, PH2, PH5) have a large red reset knob which indicates the position of the flap within the valve. The PH2 and PH5 shut-off valves also have an option to include a microswitch as an electronic indicator of valve position.
The switch is available in Normally Open and Normally Closed configurations. The wiring from the switch can be led to a panel light or fed directly into your equipment systems.
Electronic activation PowerHalt systems can be powered by 12 or 24 VDC. Manual activation kits are specific to either 12 or 24 VDC whereas the automatic activation kits are universal to either power source.
Once connected to power, manual activation kits will draw near 0mA of current while automatic activation kits will draw 30-35mA at idle.
No, you can't
If you have control over the engine speed: choose to set your trip speed at 30% above the engine rated RPM. Refer to your programming manual for set-up procedure.
If your engine runs at a constant speed: you can choose to set your trip speed at 10, 20, or 30% above the constant engine speed. Refer to your programming manual for set-up procedure.
Frequent security checks may prove cumbersome when manually resetting a valve if it is difficult to access. Automatic reset are better suited for these applications. Routing of the switch or pill cable is an important consideration to make. Pull cable are a great low cost option if your application and regulations allow.
Pneumatically actuated valves require an air source of 60 psig (minimum) to 145 psig (maximum)
No, the PH2 configuration can't. You will need a PH3 air shut-off valve for this particular requirement
In some cases, the factory sensor port on the bellhousing does not line up directly over the flywheel teeth. The sensor port may give a partial view of the flywheel which is offset by a gap or a machined edge. It is possible that a threaded speed sensor will not be able to sense speed from an offset flywheel.
Pacbrake recommends first installing the sensor into the port and checking if the system is able to read speed. You can check that the sensor is detecting speed by proceeding to Set and Test a Trip Speed. If setting and testing occur successfully, the sensor is able to read speed.
If the sensor cannot read speed, contact Pacbrake Support for an offset adapter (P/N: C50136) and a 3/8”-20 gear tooth speed sensor. The offset adapter is a sleeve with a 3/4”-16 external thread and a 3/8”-20 hole drilled off-center to allow the smaller sensor to be positioned directly over the offset flywheel teeth.
A more immediate solution would be to drill and tap a new sensor port in the correct position on the bell housing.
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