CNG Gas Equipment for Electric Engine Car Kit CNG Filling NGV1 Valve
What is an NGV1 valve? Many conversion workshops and gas stations frequently inquire about NGV1 valves during procurement. It is a high-pressure safety fitting for CNG systems built to comply with international NGV1 standards. Widely applied in natural gas vehicle refueling circuits, the NGV1 filling valve works together with break-off valves and gas nozzle assemblies to deliver full-process safety protection for high-pressure compressed natural gas refueling operations.
This NGV1 filling valve is designed as a core component for CNG conversion kits, suitable for electric engine vehicles retrofitted with compressed natural gas fuel systems. Built for 20 MPa nominal working pressure, the unit adopts DN4 mm flow passage, ferrule-type hole 6 outlet joint thread and GB/T 18363 standard quick coupling for cylinder connection. No integrated safety temperature-pressure device is fitted on this model; net product weight reaches 273 grams. Compact dimension and stable mechanical performance make it ideal for vehicle-mounted high-pressure gas pipelines.
Main Technical Parameters
| Nominal Pressure PN | 20 MPa |
| Nominal Diameter DN | 4 mm |
| Outlet Joint Thread | Ferrule Type Hole 6 |
| Cylinder Connecting Joint | GB/T 18363 Quick Coupling |
| Safety Temperature-Pressure Device | None |
| Net Weight | 273 g |
The NGV1 filling valve guarantees reliable cut-off performance when refueling CNG vehicles. After finishing gas filling, it seals the internal gas path automatically to prevent high-pressure gas leakage. Compatible with mainstream CNG refueling station nozzles, it can be installed for passenger cars, light commercial vehicles and modified electric engine vehicles with CNG conversion kits. Rigorous production and pressure testing ensure long service life under continuous high-pressure working environments.
FAQ
Q: What vehicles fit this NGV1 filling valve?
A: It is suitable for electric engine vehicles with CNG conversion kits, as well as most passenger cars and light-duty NGV vehicles following NGV1 interface specifications.
Q: What is the maximum working pressure of this NGV1 valve?
A: Nominal working pressure is 20 MPa, matching common 200 bar vehicle-mounted CNG cylinder systems.
Q: Does this valve come with built-in temperature-pressure safety device?
A: This model has no built-in temp-pressure safety device; external safety accessories should be configured according to local installation regulations.
Q: Which standard does the cylinder quick coupling follow?
A: The cylinder-side joint complies with GB/T 18363 quick coupling specification for compressed natural gas vehicle systems.
Q: What does ferrule type hole 6 mean for outlet thread?
A: Ferrule Type Hole 6 stands for 6 mm ferrule tube connection, used to link high-pressure CNG pipeline tubing in vehicle gas circuits.
