Shijiazhuang Laiye Imort& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of sv series hydraulic valves factory direct in China, also supports customized service. If you're going to wholesale high quality sv series hydraulic valves factory direct made in China, welcome to get pricelist from our factory.
Precision Engineered for Reliable Flow Control
When your machinery demands consistent hydraulic performance, the SV Series hydraulic valves deliver. Manufactured in our own ISO-certified facility, every valve combines German-inspired engineering with 35 years of hands-on pressure valve experience. No middlemen, no markups – just factory-direct quality that keeps your equipment running.
Technical Parameters & Specifications
Each SV Series hydraulic valve undergoes a 3D coordinate measurement test to ensure spool-body clearance within 0.003–0.005 mm – eliminating internal leakage.
| Parameter | Value |
|---|---|
| Max operating pressure | 350 bar (5075 psi) |
| Rated flow | 80 L/min (21 GPM) |
| Working temperature | -20°C to +80°C |
| Viscosity range | 15–400 mm²/s |
| Spool type | Precision-ground hardened steel |
| Body material | High-ductile cast iron (QT500) |
| Seal material | NBR / FKM (optional) |
Products Description
Function & Working Principle
The SV Series is a manual directional control valve. Inside the cast-iron body, a precision-ground spool moves axially within a hardened sleeve. When you shift the spool position via the lever, different oil passages open or close, directing hydraulic fluid to actuators (cylinders or motors).
Spool switching method: Direct mechanical lever actuation with detent positions (3-position, 4-way, 3-way configurations available). The spring-centered spool automatically returns to neutral when released; optional detent holds spool in end positions for continuous operation.
Oil circuit control function: Open-center or closed-center internal drilling options. Open-center allows pump flow to return to tank in neutral – ideal for constant pump systems. Closed-center blocks flow in neutral, suited for variable displacement pump circuits.
What We Offer – Factory Direct Services
Founded in 1988, Shijiazhuang Laiye Import & Export Trading Co., Ltd (under Hebei Wendefu Hydraulic Technology Co., Ltd) is a high-tech enterprise dedicated to hydraulic valves – directional, pressure, flow, and special components. With a 200+ professional team and 35+ years of pressure valve component manufacturing, we ship over 10,000 containers annually to 20+ countries.
Our mission: Technology makes work easier; quality earns customer trust.
1988 – Founded
2000 – ISO9002 certified
2001 – Obtained export rights
2004 – CE certificate
2011 – Established branch office
2019 – Total sales ¥250M, exports $5M
2022 – Expanded export advantages
OEM/ODM
Provide your drawing – we manufacture to your porting, spool, and flow requirements.
Rapid sampling
7 days for custom spool modifications.
Batch tracking
Each valve gets a unique serial number – full traceability from raw material to shipment.
Global shipping
Sea, air, or express (DHL/FedEx/UPS). Warehouse ready for consolidation.
Have Any Questions About Our Company
We have a team of skilled engineers ready to support you in your product development journey from test sample to production.
More than 30 years hydraulic valve prodution experience
A professional hydaulic valve production managenebt team of more than 200 people
Annual supply of more than 10,000 container of specialized products
At least 10 inspection procedures are carried out before each batch is shipped
Supplying Laiye products to customers in more than 20 countries
Are you a trading company or the actual manufacturer?
We are the direct factory. You deal with engineers, not sales agents.
Can you make OEM valves with my logo and porting?
Absolutely. Send your drawing and technical requirements. Minimum OEM quantity: 100 pieces per variation.
What warranty do you offer?
12 months against B/L date – covers manufacturing defects and seal failures under normal use.
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