Clean Fuel Solutions

The Energy
of Tomorrow.

CNG conversion systems, certified gas cylinders, cylinder bundles and complete mobile refueling stations — engineered together with our international manufacturing partners.

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CNG
Direct & Sequential Injection
6
Cylinder Types Available
4
Bundle Configurations
300K
Cylinders per Year
CNG Vehicle Kits

Direct Injection &
Sequential Systems.

Complete CNG conversion kits for 4 and 6 cylinder petrol engines. Every kit ships as a full system with all required components included.

CNG System
Direct Injection Kit
CNG direct injection conversion system designed for 4 and 6 cylinder petrol engines in passenger cars. Certified to ECE R110, ISO 9001 and BV standards.
Engine Type4 & 6 Cylinder Petrol
Gas TypeCNG
ApplicationPassenger Cars
CertificationECE R110 · ISO 9001 · BV
Flow FluctuationLess than 5%
Kit Components
01
Injector Rail
Model JY08 · ECE R110 · 2/3/4 Cylinder
02
Switch
CNG / petrol changeover switch
03
Filter
Gas filter unit
04
Regulator / Reducer
Model JY02 · max 22 MPa · ≥42 m³/h
05
ECU
Model N18 · OBD available · −40 °C to +120 °C
06
Filling Valve
High-pressure CNG filling valve
07
High Pressure Pipeline
Connecting pipework
08
Gas Cylinder
CNG cylinder — 35 L / 65 L / 120 L
09
Cylinder Valve
High-pressure cylinder valve
CNG System
Sequential Injection Kit
CNG sequential injection conversion system for 4 and 6 cylinder petrol engines. Optimized per-cylinder fuel delivery for stable and efficient engine performance.
Engine Type4 & 6 Cylinder Petrol
Gas TypeCNG
ApplicationPassenger Cars
CertificationECE R110 · ISO 9001 · BV
Injection TypeSequential per cylinder
Kit Components
01
Injector Rail
Model JY08 · Sequential · ECE R110
02
Switch
CNG / petrol changeover switch
03
Filter
Gas filter unit
04
Regulator / Reducer
Model JY02 · patent design · GDI compatible
05
ECU — Sequential
N18 · sequential 4-cyl output · 48 pin
06
Filling Valve
High-pressure CNG filling valve
07
High Pressure Pipeline
Connecting pipework
08
Gas Cylinder
CNG cylinder — 35 L / 65 L / 120 L
09
Cylinder Valve
High-pressure cylinder valve
Diesel Conversion

Diesel CNG
Conversion Kits.

CNG conversion kits for 4 and 6 cylinder diesel engines — primarily used in trucks and heavy commercial vehicles. Each kit includes ECU, reducer and injector rail.

4 Cylinder 6 Cylinder Trucks & Commercial CNG
Diesel ECU Kit
Diesel ECU system with calibration and diagnostics app. Includes timing control for optimal gas injection on diesel engines.
GDI ECU Kit
Specialized ECU for GDI engines. 32-bit chip, OBD function, timing advancer, short-circuit and overheat protection.
Injector Rail + Reducer
Model JY08 injector rail and JY02 reducer included. High-precision CNC machined components for reliable heavy-duty operation.
Lower Emissions.
Cleaner Fuel.
Same Distance.
Certifications
ECE R110
ISO 9001 · BV · DOT
Cylinder Types
Type 1–4
Steel to carbon fiber
Production
300,000
Cylinders per year
Gas Cylinders

Every Type.
Every Application.

CNG cylinders available in 35 L, 65 L and 120 L — suitable for passenger cars and commercial vehicles. Six construction types from seamless steel to full composite.

Type 1
Seamless Steel Cylinder
34CrMo4 · convex bottom · 200 bar
35 L65 L120 LØ 219–406 mm
Working Pressure
200 bar
Material
34CrMo4 Steel
Bottom Shape
Convex
ECE R110 · ISO 11439 · DOT-3AA
Type 2
Steel + Glass Fiber Wrap
30CrMo · hoop-wrapped · 200 bar
Ø 325 mmØ 356 mmØ 406 mmØ 426 mm60–260 L
Working Pressure
200 bar
Material
30CrMo + Glass Fiber
Advantage
Lighter than Type 1
ECE R110 · ISO 11439
Type 3
Steel Liner + Carbon Fiber
30CrMo + carbon fiber · significantly lighter
Ø 366 mm: 35 / 75 LØ 424 mm: 50 / 100 LØ 430 mm: 120–260 L
Working Pressure
200 bar
Material
Steel + Carbon Fiber
Wall Thickness
3.5–3.6 mm
Q/LD 0001-2024
Type 4
HDPE + Full Carbon Fiber
composite liner · maximum weight reduction
Ø 365 mm: 66 LØ 452 mm: 115 LØ 907 mm: 1080 L
Working Pressure
200 bar
Material
HDPE + Carbon Fiber
Advantage
Lightest option
ECE R110 · ISO 11439
H₂
Hydrogen Cylinders (Type 4)
35 MPa & 70 MPa · HDPE + carbon fiber
35 MPa: 60–450 L70 MPa: 60–422 L
Pressure Options
35 / 70 MPa
Material
HDPE + Carbon Fiber
Application
Fuel cell vehicles
Type 4 Certified
LPG
LPG Composite Cylinders
HDPE + glass fiber · visible liquid level
12.5 L18.2 L24.5 L26.2 L27.4 L30.5 L34.5 L
Working Pressure
20 bar
Material
HDPE + Glass Fiber
Features
Rust-free, lightweight
EN 12245 · ISO 11119-3
Industrial & Supply

CNG Cylinder Bundles.

High-capacity gas storage bundle assemblies for industrial and supply station use. All cylinders Ø 406 mm · 200 L per cylinder · 200 bar working pressure.

12
Cylinders
12 × 200 L
2,400 L
200 bar working pressure
16
Cylinders
16 × 200 L
3,200 L
200 bar working pressure
24
Cylinders
24 × 200 L
4,800 L
200 bar working pressure
28
Cylinders
28 × 200 L
5,600 L
200 bar working pressure
Turnkey Solutions

Mobile CNG Stations
& Refueling Systems.

Complete turnkey CNG refueling solutions — from compressor units and dispensers to fully containerized and mobile trailer-mounted stations.

01

Containerized Compressor Stations

Fully enclosed CNG compressor units built into weatherproof containers. Complete with compressor, gas treatment, control system and safety equipment — ready for plug-and-play installation.

Compressor UnitGas TreatmentControl System
02

Mobile Trailer-Mounted Stations

Complete CNG refueling stations mounted on trailers for full mobility. Integrated cylinder storage, compression and dispensing — bring fuel supply directly to fleets, remote sites or temporary operations.

Fully MobileIntegrated StoragePlug & Play

CNG Dispensers

Precise metering dispensers with digital display for accurate gas delivery and billing.

PRSM — Pressure Regulator System

Pressure regulation, measurement and gas control modules for cylinder bundles and supply stations.

Control & Automation Panels

PLC-based control systems with touchscreen interface for full station automation and monitoring.

Contact

Let's Talk About
Your Project.

Whether it's a vehicle conversion, industrial gas supply or a large-volume order — we are happy to advise you and provide a tailored quote.

J. Seto
Chief Executive Officer
+49 172 8891304
j.seto@sis-cleanenergy.com
S. Seto
Directing Manager
+49 172 6926260
s.seto@sis-cleanenergy.com