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Parker PVCMA MCN147 Hydraulic Pressure Compensator (PVPLUS, Purely Mechanical Constant-Pressure)
1. Product Overview
The PVCMA MCN147 is a modular pressure compensator (constant-pressure regulator) for Parker PVPLUS open-circuit axial-piston variable-displacement pumps. It is a hydraulic control component integral to the PV pump rather than a standalone directional valve.
This compensator is purely mechanical constant-pressure type: when system pressure reaches the spring setting, the compensator strokes the pump's displacement mechanism to reduce flow, holding outlet pressure near the setpoint (the pump supplies only the flow demanded), giving constant-pressure energy-saving control. It has no load-sensing (LS), no horsepower control and no electronics/proportional solenoid; regulation is entirely spring and hydraulic feedback.
Per public data, this size fits the PV063, PV080, PV092 mid-frame (BG3) variable pumps; the PV pump system is rated 350 bar with a 420 bar peak. The exact pressure adjustment range and seal/screw options are set by the order-code suffix and pump nameplate.
2. Specifications
表格
| Item | Specification |
|---|---|
| Manufacturer | Parker Hannifin |
| Pump series | PVPLUS / PV open-circuit axial-piston variable pumps |
| Catalog number | PVCMA MCN147 |
| Product type | Modular pressure compensator (constant-pressure regulator) |
| Control type | Purely mechanical constant-pressure compensation, no LS, no HP, no electronics |
| Pump sizes | PV063, PV080, PV092 (mid-frame / BG3) |
| Pump rated pressure | 350 bar |
| Pump peak pressure | 420 bar |
| Function | Spring-set; pressure rise auto-reduces displacement to hold constant pressure |
| Fluid | Hydraulic (mineral) oil |
| Mounting | Directly on the PV pump compensator pad |
| Suffix note | M = mechanical, C = constant pressure; N/147 = seal, range/screw options |
Per Parker PV pump catalog and public PVCM compensator data. Confirm the exact pressure adjustment range, seal and screw options from the pump nameplate or Parker factory configuration. To confirm matching with a specific PV pump and pressure setting, please email us.
5. Model Information
- Catalog number (ordering number): PVCMA MCN147
- Product description: Parker PVPLUS purely mechanical constant-pressure compensator, for PV063/080/092 pumps.
- Material number note: PVCM is the PVPLUS modular pump compensator family; letters denote frame size, control type (M = mechanical), regulating function (C = constant pressure) and seal/screw options. This size is purely mechanical constant-pressure, without LS/HP/electronics. Refer to the Parker PV compensator parts manual for full code meaning. To confirm pressure range or pump fit, please email us.
- Series features:
- PVPLUS piston-pump modular pressure compensator
- Purely mechanical constant-pressure control, simple and reliable
- No load-sensing, no horsepower, no electronics
- Auto-reduces displacement at set pressure for constant-pressure energy saving
- Fits PV063/080/092 mid-frame pumps
- Integral pump mounting, no external pilot lines
- Related products in series: Other PV compensator controls (LS load-sensing, horsepower, proportional electronic); different compensator sizes for other PV frames (PV016–046, PV140–360)
- Matching products: PVPLUS axial-piston pumps, pump seal kits, adjusting springs/screws, hydraulic oil
- (No official documents section, per request)
6. Why Choose Us
- Exact model match: We verify supply against your full order number PVCMA MCN147 and confirm it is a PVPLUS purely mechanical constant-pressure compensator and its pump fit.
- Authorized channel supply: Parker hydraulic products through regular channels, with documentation available on request.
- Selection support: We help confirm pump frame (PV063/080/092), control type (pure mechanical constant pressure) and pressure setting range.
- Delivery & after-sales: Quotation, lead-time confirmation and order follow-up provided; for any parameter questions or alternatives, please email us.
7. FAQ
Q1: What is the PVCMA MCN147?
A: It is not a standalone directional valve but a modular pressure compensator (constant-pressure regulator) for Parker PVPLUS variable piston pumps; mounted on the pump, it auto-reduces displacement at the set pressure to hold constant pressure.
Q2: Electronic or mechanical?
A: Purely mechanical constant-pressure, with no proportional solenoid/electronics, no load-sensing and no horsepower control; regulation is by spring and hydraulic feedback.
Q3: Which pumps does it fit?
A: Per public data it fits PV063, PV080 and PV092 mid-frame (BG3) variable pumps. Please check your actual pump model and nameplate.
Q4: What is the system pressure?
A: PV pumps are rated 350 bar with 420 bar peak. The compensator's exact adjustment range is per spring setting/nameplate.
Q5: Can it be converted to load-sensing or horsepower control?
A: Not directly; different control types require a different compensator assembly. For LS/HP/electronic options, please email us for selection.
Q6: How do I confirm pressure setting and seals?
A: Please send a photo of the pump nameplate or the full pump model; we can help verify compensator fit and pressure range. Otherwise, please email us.
