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| Weichai Fuel Metering Valve (OH6 System) Parameter Specification Table | ||
| Parameter Category | Item | Specification / Details |
| Identification | Brand / System | Weichai Power / Woodward OH6 System |
| Part Numbers | 612600191586, 1003650716, 1005111834, 1003650715 | |
| Common Names | Fuel Metering Valve, Gas Injector, Injection Valve Assy | |
| Physical Specs | Body Material | High-grade Aluminum Alloy or Engineered Polymer |
| Internal Material | Stainless Steel (Needle), FKM/Viton (Seals) | |
| Performance | Rated Voltage | 12V / 24V (Pulse Width Modulation controlled by ECU) |
| Fuel Type | Compressed Natural Gas (CNG) / Liquefied Natural Gas (LNG) | |
| Emission Level | Euro V, Euro VI (National VI A/B) | |
| Operating Temp | -40°C to +93°C (-40°F to +200°F) | |
| Application | Engine Models | Weichai WP13NG Series |
| Truck Brands | SHACMAN (Delong), FAW (J6/J7), SINOTRUK (HOWO) | |
| Maintenance | Core Function | High-frequency solenoid switching for precise gas dosing |
| Key Precautions | Must use high-precision gas filters; avoid water/oil ingress | |
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1.High-frequency response: Supports over 100 switching actions per second, ensuring precise air-fuel ratio.
2.Corrosion resistance: The internal coating is specially treated to remove impurities in natural gas (such as sulfur), extending service life.
3.Emissions support: Directly supports closed-loop control for China V and China VI emission standards.
Usage and Maintenance Precautions
1. Anti-static Protection: This component contains sensitive electronic parts. Power must be disconnected before replacement. Avoid direct hand contact with the pins.
2. Filtration Requirements: The natural gas filter element (low-pressure filter element) must be replaced regularly. Any minute impurities entering the valve body can cause the needle valve to jam or fail to seal properly.
Primary Fitment:
Shacman Delong F3000 Series (All 2010–2020 models; e.g., F3000 6x4 Tractor, Dump Trucks)
Partial Compatibility (Confirm via VIN):
Shacman M3000 Series (2015–2022)
Shacman X3000 Series (2016–2023; only with identical HVAC configuration)
Exclusions:
NOT for Shacman L3000, S3000, or non-Chinese market variants.
Verify compatibility using vehicle VIN before installation.
High-Temperature Resilience: Sustained operation at +55°C ambient (critical for desert/haulage use).
Duty Cycle: 100% continuous runtime (designed for 12+ hour shifts).
Cooling Capacity: ~3.5–4.5 TR (Tons of Refrigeration; sufficient for 8–10 m³ cabin space).
Vibration Damping: Rubber-mounted clutch assembly reduces NVH (Noise, Vibration, Harshness).
Seal Integrity: Dual-lip shaft seals prevent refrigerant leakage under high-pressure cycling.
