VDR-11A-2A2-2A2-U-22
Description: Variable Volume Double Vane Pump - VDR22 Design Series
Stable, Highly Efficient Operation Up To 2030 psi
A biased piston that minimizes ring vibration and leak-free pressure balance construction enables highly efficient highpressure operation, and very stable performance up to 2030 psi.
High-Precision Instantaneous Response
Response has been improved by a special bias piston mechanism. Prompt response at both ON-OFF and OFF-ON ensures instantaneous, stable, high-precision operation.
Silent Operation, Even in the High Pressure Range
CQuiet journal bearings, a bias piston that allows a 3-point support system, and new suction and discharge port shapes all contribute to minimize operation noise. Silent, vibration-free operation is ensured, even in the high pressure range.
Reduced Power Loss
A combination of NACHI-original mechanical innovations and precision machining create a pump that minimizes power loss, especially at full cutoff.
Solid Construction Stands Up To Harsh Operating Conditions
The tough and rugged construction of this pump is made possible by a long history of quality pump designs. This, in combination with specially selected materials and skilled workmanship, provides outstanding durability.
Features:
Spec | Value |
---|---|
Series | VDR: Variable Discharge Rate Vane Pump |
Pump Size | 11: Double Pump |
Mounting Method | A: Foot Type Mounting |
Ring/Head Ring Size | 2 |
Flow Characteristics | A: Constant Discharge Type |
Head Side Pressure Adjustment Range | 2: 217 ~ 507 |
Shaft Side Ring Size | N/A |
Shaft Side Flow Rate Characteristic | A: Constant Discharge Type |
Shaft Side Pressure Adjustment Range | N/A |
Auxiliary Symbol | U: Shaft Seal |
Design Number | 22 |
Weight (lb/kg) | 37.5 / 17 |
Values provided may differ based on other specifications. Please consult the product documentation for values specific to the model number.
*Please consult product documentation for specific values
Additional Documents:
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