PH3 MK II Valve Only

Overview

Pacbrake's PH3 MKII PowerHalt Air Intake Emergency Shut-Off Valves provide a reliable and safe method of shutting down the engine. PowerHalt's PH3 offers one of the safest control options on the market - providing a hands-free operation with an automatic reset function as well as various control options.

PLEASE NOTE:
PH3 MK II PowerHalt Shut-Off Valve Custom Kits must be ordered in conjunction with:
Valve + Control Option + Mounting Group

View our PowerHalt Selection Guide for more information

Product Description

Pacbrake's PH3 MK II PowerHalt Valves are an electronically controlled emergency engine shut down system which forces engine shut down by blocking an engine’s air intake path.

It is available in a manual activation-only configuration where an operator (or external input) will activate emergency engine shut-down.

Alternatively, an automatic engine speed sensing model is also available which adds the ability to automatically force engine shut down if engine speed exceeds a user defined trip speed.

The valves electronically return to open position after emergency engine shutdown, all while providing feedback to the operator that the valve is held closed via illuminated toggle switch or panel indicator light.

PH3 MK II Highlights

12 & 24 VDC system compatible
Reliable and safe emergency shut down for diesel engines
Operator friendly fully automatic operation with manual override
Enclosed drive system is debris and corrosion resistant
Aluminum flap and housing for durable seal
High temperature design for challenging thermal applications
Corrosion tested to ASTM B117 – 96 hours Salt Fog
Valve rated for 18.6𝐺𝑅𝑀𝑆 vibration
Robust design – designed to pass one million activations
Low power consumption with smart control
Supports auxiliary trip inputs
Provides auxiliary trip indication output signal
Compatible with Hall Effect and VR sensors (PowerGuard Automatic)
Automatically detects CAN baud rate: 250, 500, and 1000 kbps supported
Compatible with OBDII per ISO 15765-4 and J1939 (PowerGuard Automatic)
Compatible with 120-240V 50/60Hz AC Generators (PowerGuard Automatic)
Programmable Secondary Trip Speed (PowerGuard Automatic)
Configurable Automatic or Manual Reset (PowerGuard Automatic)

Vehicle Application

PH3 MK II Custom Valve System - Universal

Application Notes

PH3 MK II Valve Only
Custom kits must be ordered in conjunction with:
Valve + Control Option + Mounting Group

Features

1.5" to 4.0" Valve Sizes Available

Multiple Activation Options
Additional Motor Torque Available on 3.5" to 4.0" Valve Sizes

A Complete Installation — All in One Box
Maintenance Free, Smart System
Electronic Reset for In-Cab Control/Comfort when Testing the Valve — No more lifting the hood to manually reset!
Compact & Lightweight
Low Power Consumption
Designed to withstand large temperature ranges
Rigorous Vibration, Corrosion & Endurance Testing
CSA B621-14 and B622-14 compliance available

MANUALS, GUIDES & DOWNLOADS

PH3 MKII Valves — Data Sheet

Auto Activation with Auto Reset Kits
Auto Activation with Manual Reset Kits

Manual Activation with Auto Reset Kits

Installation Manual

PH3 MK II POWERHALT SHUT-OFF VALVES
	1.5" - 3.0" VALVE SIZE SPECIFICATIONS	3.5" - 4.0" VALVE SIZE SPECIFICATIONS
Mamimum Intake Boost Air Pressure	3.45 bar (gauge) [50 psig]	3.45 bar (gauge) [50 psig]
Continuous Intake Air Temperature	-70°F to 347°F [-56°C to +175°C]	-70°F to 347°F [-56°C to +175°C]
Ambient Temperature Range	-40°F to 248°F [-40°C to +120°C]	-40°F to 248°F [-40°C to +120°C]
Ingress Protection	IP66	IP67
Ambient Temperature Range	18.6 Grms	18.6 Grms
Resting Position	Valve Open	Valve Open
Activated Position	Valve Closed	Valve Closed
Motor Coil Supply Voltage	13.5V nominal	13.5V nominal
Motor Coil Resistance	2.4Ω @ 20°C	2.6Ω @ 20°C
Standard Mounting Flanges	Hose to Hose	Hose to Hose
Pipe Size Supported	Ø38 mm to Ø89 mm [Ø1.5 in to Ø3.5 in]	Ø63.5 mm to Ø114 mm [Ø2.5 in to Ø4.5 in]

PH3 MK II — 1.5" - 3.0" VALVE SIZE OPTIONS
	C50347 — 1.50"	C50330 — 1.75"
	A1: 1.50" [38mm] B1: 1.10" [29mm] C1: 6.15" [156mm] Weight: 1.8lb [0.82kg]	A1: 1.75" [45mm] B1: 1.40" [36mm] C1: 6.50" [165mm] Weight: 2.1lb [0.95 kg]
	C50331 — 2.0"	C50332 — 2.25"
	A1: 2.00" [51mm] B1: 1.65" [42mm] C1: 6.50" [165mm] Weight: 2.05lb [0.93kg]	A1: 2.25" [57mm] B1: 1.90" [48mm] C1: 6.50" [165mm] Weight: 2.0lb [0.91 kg]
	C50333 — 2.5"	C50334 — 2.75"
	A1: 2.50" [64mm] B1: 2.16" [55mm] C1: 7.40" [188mm] Weight: 2.45lb [1.11kg]	A1: 2.75" [70mm] B1: 2.40" [61mm] C1: 7.40" [188mm] Weight: 2.04lb [1.08kg]
	C50335 — 3.0"
	A1: 3.00" [76mm] B1: 2.65" [67mm] C1: 7.40" [188mm] Weight: 2.3lb [1.05kg]

PH3 MK II — 3.5" - 4.0" VALVE SIZE OPTIONS
	C50338 — 3.5"	C50339 — 4.0"
	A2: 3.50" [89mm] B2: 3.15" [80mm] C2: 8.78" [223mm] Weight: 4.39lb [1.99kg]	A2: 4.00" [102mm] B2: 3.65" [93mm] C2: 8.78" [223mm] Weight: 4.19lb [1.90 kg]

APPLICATIONS
Bulk Haulers	Tankers	Power Generators	Drilling Rigs	Grain Processing Plants
Cranes	Forklifts	Work Boats	Refinery Processing	Light Duty Trucks
Underground Equipment	Barges	Fueling Vehicles	Tow Vehicles	Support Vehicles
Welders	Pump Trucks	Fire Trucks	Vacuum Trucks	Lighting Trucks