HE-2-X Main Drum Driller Valve Assembly Pressure Regulating Valve R431002912 R431002913 R431002914 R431002915 R431001213 R431001241
The HE-2 control valve is a compound lever-type directional control valve, comprising a two-position three-way directional valve and a three-way pressure-regulating section.
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Category:
Pneumatic components for oilfield equipment
I. Characteristics
The HE-2 control valve is a compound lever-type directional control valve, comprising a two-position three-way directional valve and a three-way pressure-regulating section.
It has three working ports: port 1 for output, port 2 for input, and port 8 for pressurization.
The first 10° of handle‑lever movement from the “closed” position opens inlet port 1 and delivers full supply pressure. Further handle‑lever travel modulates the pressure‑regulating section, with outlet port 8 providing a variable supply pressure that increases with increasing handle angle, up to the rated maximum output pressure.
The HE-2 main drum driller valve is primarily used to control the engine’s clutch and throttle. Weight: 4.2 kg.
II. Connection Mode
Port 1 is the output port; when the handle lever is rotated 10° clockwise from the “off” position, it delivers the full inlet pressure.
Port 2 is the input port.
To increase the throttle at port 8, continue moving the control lever clockwise, gradually raising the output pressure at port 8 to its rated maximum pressure. Port 3 is blocked and discarded.
III. Model Analysis
HE-2-X Resetting One-Way Control Valve — When the handle lever is in any position under output pressure, the operating force is canceled, allowing it to return at any time to the minimum-pressure position.
HE-2-FX Positioning One-Way Control Valve—The lever can be locked at any output pressure setting. Friction is adjustable.
HE-2-LX Limiting One-Way Control Valve — When the handle lever is moved out of the locked position (maximum pressure limit), it automatically returns to the closed position.
IV. Technical Specification
| Model number | HE-2 |
| Diameter (mm) | 6 |
| Operating pressure (MPa) | 1 |
| Flow characteristics (l/min) | ≥300 |
| Flow characteristics (MPa) | ≤0.08 |
| Pressure Characteristics (MPa) | ≤0.04 |
| Leakage rate (ml/min) | ≤125 |
| Withstand Voltage (MPa) | 1.5 |
| Durability (in ten thousand cycles) | 100 |
| Operating Temperature (°C) | -25 ~ 60 (Note: Low-temperature‑resistant products down to -40°C require special customization) |
| Connection method | NPT1/4" |
V. Order Description
| Model number | Pressure range | Code |
| HE-2-X | 0-0.45(65PSi) 0-0.69(100PSi) 0–0.86 (125 PSi) 0-1.03(150PSi) |
001 002 003 004 |
| HE-2-FX | 0-0.45(65PSi) 0-0.69(100PSi) 0–0.86 (125 PSi) 0-1.03(150PSi) |
001 002 003 004 |
| HE-2-LX | 0-0.45(65PSi) 0-0.69(100PSi) 0–0.86 (125 PSi) 0-1.03(150PSi) |
001 002 003 004 |
(Note: Each model can be configured with a different pressure operating range. For specific selection, please consult the manufacturer. A reverse‑rotation handle position can also be provided upon request.)
VI. Outline and Installation Dimensions

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