SANY HVSE-12-08-PLL300-BE085 Multi-Valve
I. Basic Information
Brand: SANY (Manufactured by Lilon Hydraulic / Hengli Hydraulics as OEM supplier, original main multi-valve for SANY construction machinery)
Category: Multi-Valve – Load-sensing Flow-sharing Sectional Main Directional Control Valve
Full Model Designation: HVSE-12-08-PLL300-BE085 (SANY standard ordering part number, widely applied to medium & small tonnage excavators, drill rigs, truck-mounted cranes and hydraulic breakers)
II. Breakdown of Model Code (Core Code Definition)
1. HVSE – Series Code
- HVS: Post-compensated load-sensing flow-sharing multi-valve (no flow diversion during synchronized movements for smooth combined operation)
- E: Integrated electro-proportional pilot control (dual-control compatible: electro control + hydraulic pilot control)
- Structure: Stacked sectional modular valve body with expandable valve sections, built-in LS load-sensing oil circuit and individual pressure compensators
2. 12 – Nominal Size / Rated Flow per Section
- Size 12 specification, maximum rated flow per section: 120L/min
- Nominal system pressure: 320bar (32MPa), peak withstand pressure: 340bar (34MPa)
- Matched total main pump flow: 220~360L/min, compatible with mainstream 13~22 tonnage excavators
3. 08 – Number of Valve Sections
8 working valve sections in total, capable of controlling 8 sets of hydraulic actuators (8 movements including boom, arm, bucket, swing, left travel, right travel, hydraulic breaker and auxiliary attachments)
4. PLL300 – Functional Configuration & Main Relief Pressure Setting
- P: Integrated main relief valve on inlet port (with LS overload protection)
- First L: Built-in anti-drift check lock for boom (maintains pressure during descent to prevent boom sagging)
- Second L: Built-in anti-drift check lock for arm (holds pressure with arm extended to avoid free drop)
- 300: Factory preset pressure of main system relief valve at 300bar (30MPa), on-site fine-tuning for pressure rise is available
5. BE085 – Neutral Position Function + Port Thread + Custom Spool Stroke
- B: Closed-center neutral position; P port blocked and T return port closed at neutral, ideal for variable load-sensing pump systems
- E: Ports adopt British standard BSP pipe threads (taper threads, different from metric M-series threads)
- 085: Custom code for spool throttling opening with 0.85 specification, optimized for precise inching control (suited for grading and light striking of hydraulic breakers)
III. Core Technical Specifications
Item Parameter
Rated System Working Pressure 32MPa (320bar)
Factory Preset Relief Pressure 30MPa (300bar)
Max Flow per Section 120L/min
Max Matched Total Pump Flow ≤360L/min
Control Mode Dual control: Hydraulic pilot + electro-proportional control
Neutral Position Function Type B Closed Center
Standard Equipped Functions Dual anti-drift locks for boom & arm, LS load sensing, individual post pressure compensation per section, flow distribution for combined movements
Port Standard British BSP Threads
Application Scenarios 13-22 ton excavators, auxiliary valves for rotary drill rigs, truck-mounted cranes, crawler crushers
IV. Structure & Working Principle
1. Post-compensated flow sharing: Automatically distributes flow according to load demands under simultaneous multi-action operation; no flow starvation for heavy loads and responsive light-load movements
2. Dual L-type locking mechanism: Locks boom in raised position and arm in extended position to eliminate gravity-induced dropping during shutdown for safety compliance
3. Electric control compatibility: External proportional solenoid valves can be fitted for full ECU electronic control (commonly used for electric excavator retrofits and automated machinery modification)
4. 8-section integrated design: Monoblock valve body reduces leakage points of external pipelines, integrating overload relief, makeup check valves and throttling cushioning functions
V. Common SANY Compatible Models
Original main distribution valve for SANY medium excavators SY135, SY155, SY195 and SY205; also extensively equipped on hydraulic systems of SANY small rotary drill rigs, underground roadheaders and forestry grapples.
VI. Key Points for Extended Model Selection & Replacement
- Same-series alternatives: HVSE12 (120L), HVSE09 (90L for mini excavators), HVSE18 (180L for large excavators)
