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Anthony Chen(Sales director)
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sales01@hydsunrida.com
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LD‑PVQ20 Low-noise Variable Displacement Piston Pump|General Industrial 1:1 Replacement Hydraulic Pump (In Stock)
LD‑PVQ20 Low-noise Variable Displacement Piston Pump|General Industrial 1:1 Replacement Hydraulic Pump (In Stock)
1. Product Overview
HYDSUNRIDA is a professional industrial hydraulic piston pump manufacturer with 10+ years of R&D and production experience. The upgraded LD‑PVQ20 low-noise variable displacement piston pump is a high-versatility general-industry model, widely used for small and medium hydraulic system replacement and upgrading. As a premium 1:1 replacement hydraulic pump, it delivers stable pressure output, ultra-quiet operation and long-lasting durability for daily industrial working conditions.This PVQ20 hydraulic pump features balanced flow and pressure performance, perfectly compatible with precision machine tools, automated equipment, small-medium injection molding machines and light-duty hydraulic systems. It effectively solves common defects of ordinary hydraulic pumps, including loud operating noise, pressure fluctuation, mechanical vibration and minor oil leakage. It acts as a cost-effective alternative to imported variable piston pumps, helping industrial users cut procurement costs and avoid long delivery lead times.All LD‑PVQ20 piston pumps are manufactured under ISO9001:2015 and SGS certified quality systems. Every unit undergoes strict full-load endurance testing, precise pressure calibration and leakage detection. Adopting high-strength wear-resistant alloy core parts and universal mounting specifications, this industrial variable displacement pump supports 1:1 seamless drop-in replacement with no pipe modification or system debugging required. Sufficient in-stock supply, factory direct pricing and flexible OEM/ODM customization make it the top choice for domestic upgrading of general industrial hydraulic systems.
2. Basic Technical Parameters
Best-selling Model: LD‑PVQ20‑A2R‑SE1S‑20‑CG
| Item | Specification |
| Nominal Displacement | 21.1ml/r |
| Rated Working Pressure | 210bar (24-hour continuous operation) |
| Peak Impact Pressure | 280bar |
| Control Mode | Pressure Compensation + Load Sensing Adaptive Control |
| Applicable Circuit | Standard Open Hydraulic Circuit |
| Fluid Viscosity Range | 32‑55mm²/s |
| Structural Features | Exclusive LD silent swash plate structure, thickened reinforced housing, symmetrical piston layout, optimized low-noise oil circuit, low vibration and stable continuous operation |
3. Full LD‑PVQ20 Model Range
All LD‑PVQ20 series hydraulic pumps adopt universal mounting dimensions, oil port layouts and control parameters, realizing plug-and-play replacement for old hydraulic equipment. Upgraded with exclusive LD premium craftsmanship, this low-noise variable piston pump optimizes wearable core components, silent oil circuits and high-pressure sealing systems. It achieves better noise reduction, anti-leakage performance and continuous operational durability than standard pumps, ideal for emergency equipment replacement, new machine mass assembly and hydraulic station renovation projects.Complete Model ListIndustrial Standard Models
LD‑PVQ20‑A2R‑SE1S‑20‑CG
LD‑PVQ20‑A2R‑SE1S‑10‑CM
LD‑PVQ20‑A2L‑SE1S‑20‑CG
LD‑PVQ20‑A2L‑SE1S‑10‑CM
Engineering & Overseas Models
LD‑PVQ20‑B2R‑SE3S‑20‑C21
LD‑PVQ20‑B2R‑SE3S‑10‑C14
LD‑PVQ20‑B2L‑SE3S‑20‑C21
LD‑PVQ20‑B2L‑SE3S‑10‑C14
All PVQ20 hydraulic pump specifications are in sufficient stock, supporting single-unit urgent orders and large-scale project bulk procurement. Custom OEM/ODM services are available for special pressure requirements, anti-flame hydraulic media and complex industrial working conditions.
4. Core Product Advantages
1. Wide Compatibility for General Industrial ScenariosAs a mainstream universal variable displacement piston pump, the LD‑PVQ20 features balanced flow and pressure parameters, covering over 80% of small and medium industrial hydraulic equipment. It adapts to machinery, plastics, automation and light-industry scenarios with high matching accuracy, serving as the preferred model for general hydraulic system replacement and upgrading.2. LD Exclusive Low-noise Design for Precision WorkshopsThis low-noise hydraulic piston pump is equipped with customized silent oil circuits and curved flow distribution structures, effectively reducing fluid pulsation and mechanical vibration. It keeps quiet and stable during startup, switching and pressure holding processes, fully meeting strict noise control standards for precision processing and automated production workshops.3. Reinforced Alloy Core with Low Failure RateKey components including pistons, cylinder block, valve plate and main shaft are forged from high-hardness wear-resistant alloy, processed via quenching hardening, mirror polishing and stress relief treatment. The high-precision structure resists wear and deformation, maintaining stable performance during long-term high-frequency operation and reducing daily equipment maintenance costs.4. Upgraded Composite Sealing for Zero Leakage & Low Temperature RiseAdopting high-temperature resistant, aging-proof and corrosion-resistant composite seals, this PVQ20 variable pump eliminates common faults such as oil seepage, pressure drop and excessive internal leakage. It ensures low temperature rise and stable pressure holding, supporting 24-hour continuous operation of industrial hydraulic systems.5. 1:1 Seamless Replacement & High Cost PerformanceFully compliant with universal industrial interface standards, the LD‑PVQ20 piston pump supports direct on-site replacement without equipment modification or hydraulic system debugging. Factory direct sales remove middleman markups, providing fast delivery and higher cost performance than imported hydraulic pumps and ordinary domestic alternatives.6. Traceable Quality & Full Lifecycle SupportAll LD‑PVQ20 hydraulic pumps are independently processed, assembled and inspected with complete authoritative qualifications and fully traceable quality records. We provide non-standard customization, professional pre-sales model selection, order tracking and one-on-one after-sales technical support to ensure worry-free procurement and operation.
5. Application Fields
Featuring universal compatibility, ultra-quiet operation, stable durability and high cost performance, the LD‑PVQ20 low-noise variable displacement piston pump is a benchmark 1:1 replacement hydraulic pump for small and medium industrial hydraulic systems across multiple industries:Precision Machine Tools: CNC machines, hydraulic punching machines, precision grinders and professional processing hydraulic stations, delivering low-vibration, low-noise and high-precision pressure controlPlastic & Light Industry: Small and medium injection molding machines, blow molding equipment, rubber machinery and packaging machinery for stable and high-efficiency continuous productionAutomation Equipment: Automated production lines, servo hydraulic systems and fixture power units, perfectly matching modern dust-free and quiet production workshopsGeneral Hydraulic Systems: Custom small and medium hydraulic stations, hydraulic test benches and lifting platform power units with stable and durable performanceLight Industrial Machinery: Light-duty engineering equipment, agricultural hydraulic machinery and industrial auxiliary hydraulic units with strong environmental adaptability
6. Brand Service Guarantee
HYDSUNRIDA focuses on the R&D, precision production, in-stock supply and customized service of LD‑PVQ20 low-noise piston pumps. With mature craftsmanship, complete qualifications and sufficient inventory, we provide reliable hydraulic pump replacement solutions, bulk project supporting and OEM/ODM customization services. Our high-performance variable displacement hydraulic pumps are exported worldwide, delivering stable and cost-effective hydraulic upgrading solutions for general industrial fields.Google In Stock! LD‑PVQ20 low-noise variable displacement piston pump, 1:1 seamless replacement for general industrial hydraulic systems. Factory direct PVQ20 hydraulic pump with 210bar stable pressure, low noise & long service life, fast delivery & cost-effective.






