157B6261 Danfoss PVG 32 Module 350Bar
| Model Number | 157B6662, 157B6262, 157B6652, 157B6252, 157B6661, 157B6261 |
|---|
Product Description
Product Overview
The 157B6261 Basic Working Module belongs to the Danfoss PVG 32 proportional valve family (cross-compatible across 157B6661, 157B6252, 157B6652, 157B6262, and 157B6662 PVB section codes). Engineered for high-demand mobile and industrial hydraulic systems, this PVB working section delivers precise, load-independent electro-hydraulic and manual flow control. Manufactured strictly in compliance with Danfoss OEM engineering standards, it offers 100% drop-in mechanical and hydraulic interchangeability. Featuring integrated load-sensing (LS) feedback channels, individual pressure compensation ports, and shock/anti-cavitation valve cavities, it enables smooth multi-function operation at pressures up to 350 bar. Every module undergoes 100% factory bench testing under simulated full-load operating conditions to ensure zero fluid bypass and low internal pressure drop, providing a direct replacement for original Danfoss components.
Technical Specifications
Full Model Code: 157B6261 (Cross-ref: 157B6661, 157B6252, 157B6652, 157B6262, 157B6662)
Compatible System: Danfoss PVG 32 Proportional Valve Stack (PVB basic module)
Max Operating Pressure (Ports A/B): 350 bar (35 MPa)
Max Supply Pressure (Port P): 300 bar (30 MPa) / 350 bar (High-pressure version)
Max Tank Return Pressure (Port T): 40 bar (4 MPa)
Nominal Flow Rate (Ports A/B): 100 L/min (Standard), expandable up to 125 L/min
Port Thread Size: G 1/2″ (ISO 228-1 standard)
Actuation Options: Compatible with PVE electrical actuators (PVEA / PVEH / PVES) and PVMD manual levers
Operating Temperature Range: -30°C to +90°C
Net Weight: Approx. 3.2 kg
Key Technical Advantages
100% Drop-In OEM Interchangeability: Interface dimensions, tie-rod passage coordinates, and work port geometries strictly match OEM specifications for seamless field replacement.
Ductile Iron Body & Precision-Honed Bore: High-strength ductile iron body with a micron-finish honed spool bore reduces internal bypass and maintains low pressure drop under high operating loads.
Load-Independent Flow Control: Built-in LS feedback passages and pressure compensation channels ensure actuator speed remains strictly proportional to control input regardless of varying working loads.
100% Factory Bench Load Tested: Dynamically tested for 350 bar pressure holding, LS logic response, internal cross-port leakage, and flow stability prior to factory dispatch.
Application Areas
Cranes & Material Handling: Truck cranes, aerial work platforms, telehandlers, and heavy forklift valve stacks.
Construction Equipment: Concrete pump truck boom positioning, wheel excavators, and rotary drilling rigs.
Agricultural & Forestry Machinery: Combine harvester header actuation, forestry forwarders, and grapple control blocks.
Special Vehicles & Marine: Municipal refuse vehicles, street sweepers, and marine auxiliary hydraulic power units.
Expert Maintenance Tips
Adhere to Tie-Rod Torque Limits: When assembling PVB sections onto a PVG 32 stack, tighten the assembly tie-rods in a cross-pattern to exactly 24 N·m. Over-torquing can distort the valve body and cause spool binding.
Inspect Inter-Section Seals: Always fit new O-rings and backup rings between valve sections during replacement. Ensure seals are correctly seated in their grooves to prevent high-pressure internal bypass.
Maintain Fluid Cleanliness: Protect precision spools and PVE actuators by keeping system oil cleanliness to ISO 4406 19/17/14 (NAS 8) or cleaner. Ensure a $\le 10\ \mu\text{m}$ high-pressure filter is active in the main supply line.
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Company Profile
Frequently Asked Questions
1.What ls our Main Products?
1.Hydraulic pump
2.Hydraulic valve
3.Hydraulic motor
4.Hydraulic cylinder
5.Hydraulic parts
2. What about the MOQ?
3.What are your advantages?
- Adhere to quality first.
- Support customization, ODM & OEM service.
- 1-year warranty and complete after-sales support.
- Safe and fast shipping worldwide.
- 24-hour online service for your inquiries.
4.Are you a manufacturer? What’s your delivery time?
Yes, we are a manufacturer with our own factory.
Common models are in stock, and orders are usually shipped within 1–3 days.
5.Which payment methods are accepted?
We accept T/T, L/C, PayPal, VISA, Western Union, Apple Pay, Google Pay, Afterpay (Clearpay), Klarna, and Trade Assurance.
For full orders: 30% deposit, balance before shipment.
For small/sample orders: full payment in advance.
6.How will you deliver my goods?
We offer flexible shipping options: DHL, UPS, FedEx, TNT, EMS, as well as air or sea freight.
All deliveries ensure door-to-door fast and safe service.
7.How do you inspect and guarantee your products?
All products are tested before shipment to ensure perfect working condition.
We offer a 12-month warranty — if a product fails due to quality issues, we provide free spare parts or repair support.
8.What about after-sales service?
If you encounter any problem during use, please contact your sales manager or our support team at any time.
We will respond quickly and help solve the issue efficiently.
9.What are your main applications?
- Hydraulic systems
- Agricultural machinery
- Construction machinery
- Automobile industry
- Local distributors and maintenance centers
10.Can I get a discount for bulk orders?
Yes. We offer competitive wholesale prices and try our best to give benefits to long-term partners.
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