HPNGV40 pages

Conoflow Series HPNGV4
Heavy Duty Natural Gas Vehicle Regulator
The New HPNGV4 Series CNG Regulator incorporates the same robust design and manufacturing characteristics as
the HPNGV2 Series, and offers improvements in value by offering an optional inlet sensor and/or solenoid (high pressure
shut-off) integrally mounted into the regulator. Over a decade of service in the most demanding applications has proven
the HPNGV Series Regulator is the choice for OEM vehicle, engine and fuel systems. Certified to ECE R110, the HPNGV
Regulator is proven to be a safe and reliable pressure control element. Certifications and Approvals pending are for
ISO15500, ANSI/AGA NGV3.1 and ARAI Type Approval AIS-037.

Standard Specifications
Regulated Media:
Compressed natural gas
Inlet Pressure:
250 to 3600 psig (1.72 MPa to 24.84 MPa) to
meet all performance specifications.
Nominal Output Pressure Range: Factory
preset 45-150 PSIG (0.31-1.03 MPa) Set
Point. The typical range of delivery pressure
is +15 / -10 psi from specified setting
throughout the range of inlet pressure,
temperature and flow.

Ordering Sequence — Select desired option for each category
REGULATOR MODEL BREAKDOWN (CEO CODE)
TEXT POSITION OPTION CODE
DEFINITION OF CHARACTER
Natural Gas Vehicle Fuel Pressure Regulator
1 through 6
HPNGV4
7

S
C
E

8-9

03
04
06
08
12

Gas Flow Rate:
Up to 165 lb/hr (0-82 kg/hr) (flow varies by
application, consult the factory for data)
Internal Filtration:
40 Micron Corrosion Proof Sintered Element

24

Leakage (Ambient and Valve):
Bubble Tight

X2
X3
X4
X5
NOTES:

Moisture Tolerance:
To 7 lbs Water per Million Standard Cubic Ft.
Temperature Range (Ambient, Inlet and
Coolant):
-40ºF to +257ºF (-40ºC to 125ºC)
Vehicle Applications:
Normally aspirated or Turbocharged EFI
Spark Ignition Engines
Porting:
Gas Inlet:
SAE-6 (9/16-18 Thread) per SAE
Specification J1926

10

T
H
NOTES:

11

A
B
C
NOTES:

12

X
P
T
NOTES:

Gas Outlet:
SAE-8 (3/4-16 Thread) per SAE Specification
J1926
Standard Coolant:
3/8” Hose Connection per SAE Specification
J962
Mounting Threads:
M8 x 1.25 x 18mm, 2 Places 45.7mm Apart
Suitable for 20mm Bolts
Weight:
Refer to the table on page 4
Approvals:
ECE R110
Pending:
ISO15500
ANSI/AGA NGV3.1
ARAI Type
Approval AIS-037
U.S. Patents:
5,890,512
and 5,443,083

13 - 15

XXX
NOTES:

REGULATOR BONNET OPTIONS
Standard Bonnet (No Map Bias Fitting)
Captured Bonnet (3/16” Straight Hose Barb Bias Fitting)
Captured Bonnet (1/4” Hose Elbow (Polyflo Tubing Type) Bias
Fitting)
SENSOR / SOLENOID OPTIONS
12v Solenoid/SAE-3 Sensor Port (Notes 1,2,3,4)
12v Solenoid/SAE-4 Sensor Port (Notes 1,2,3,4)
24v Solenoid/SAE-3 Sensor Port (Notes 1,2,3,4)
24v Solenoid/SAE-4 Sensor Port (Notes 1,2,3,4)
Solenoid Only - Normally Closed Lock Off Solenoid - 12 Volts DC
(Note 4)
Solenoid Only - Normally Closed Lock Off Solenoid - 24 Volts DC
(Note 4)
Sensor - 0.25 to 4.75 Volt Sensor / 12 Volt Solenoid (Notes 2,3,4)
Sensor - 0.50 to 4.50 Volt Sensor / 12 Volt Solenoid (Notes 2,3,4)
Sensor - 0.25 to 4.75 Volt Sensor / 12 Volt Solenoid (Notes 2,3,4)
Sensor - 0.25 to 4.75 Volt Sensor / 12 Volt Solenoid (Notes 2,3,4)
1. No Sensor Installed - Port Not Plugged.
2. See drawing for electrical connection.
3. Sensor output with 5.0 volt DC Excitement for 5000 psig span.
4. Maximum solenoid wattage: 24 watts.
REGULATOR COOLANT BOWL OPTIONS
Thermostat
No Thermostat
Coolant connections are for 3/8” (9.5 mm) ID hose.
INTEGRAL PRESSURE RELIEF DEVICE (PRD) OPTIONS
200 PSI (± 40 PSI) PRD
270 PSI (± 60 PSI) PRD
350 PSI (± 60 PSI) PRD
1. A 200 psi PRD is not recommended for regulator output
pressures above 120 psig.
2. The regulator PRD is not suitable as a stand alone safety relief
valve. Other downstream protection strategies must be
employed for a robust system design.
PRD CONNECTION OPTIONS
PRD Vents to Atmosphere - Standard
1/4” NPT Male Capture Pipe PRD
1/2” Tube Stub PRD
If regulator is located in a hazardous location, a PRD capture pipe
must be used to route discharge gas to a remote location.
OUTPUT PRESSURE SELECTION
Output pressure setting (psig). For values less than 100,
use 0XX format.
Regulator can be factory set from 45 to 150 psig.

See next page for ordering example.