20L-12 Hydraulic Needle Valve (throttle valve)
Product Features
1. Once adjustments are made to a valve, they cannot be reversed or undone.
2. The required settings can be fixed or restricted.
3. Durable components extend service life.
Product Operation Symbol
The 20L-08 adjusts its throttling threshold by rotating the adjustment mechanism counterclockwise, starting from the fully closed position and moving to the fully open position.
Product Specifications
| Product Model | 20L-12 Hydraulic Needle Valve（throttle valve） |
| Operating Pressure | 250 bar (3600 psi) |
| Flow | 113.6 lpm (30 gpm) nominal at 7 bar (100 psi) differential at full open 4.5 turns |
| Internal Leakage | 0.15 ml/min. (3 drop/minute) max. at shut-off |
| Adjustment Torque Required | 0.17 Nm (1.5 inch-pounds) at 7 bar (100 psi);16.9 Nm (150 inch-pounds) at 207 bar (3000 psi) |
| Temperature | -40°℃～100°C |
| Fluids | Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu). |
| Installation | No restrictions |
| Cartridge | Weight: 0.2 kg. (0.45 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces |
| Seal | D type seal rings; Anodized aluminum knobs. |
| Standard Ported Body | Weight: 0.57 kg. (1.25 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 240 bar (3500 psi). |
Product Operation Symbol
The 20L-12 increases its orifice value from fully closed to fully open with counterclockwise adjustment rotation.
Performance/Dimension
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How we work
Development (tell us your machine model or design)
Quotation (we will provide you with a quotation as soon as possible)
Samples (samples will be sent to you for quality inspection)
Order (placed after confirming quantity and delivery time, etc.)
Design (for your product)
Production (producing goods according to customer requirements)
QC (Our QC team will inspect the products and provide QC reports)
Loading (loading ready-made inventory into customer containers)
Our Certificate
Quality Control
To ensure the quality of factory products,we introduce advanced cleaning and component testing instruments, 100% of the assembled products pass factory testing and the test data of each product is saved on a computer server.
R&D team
Our R&D team consists of 10-20 people, most of whom have about 10 years of work experience.
Our R&D center has a sound R&D process，including customer survey, competitor research, and market development management system.
We have mature R&D equipment including design calculations, host system simulation, hydraulic system simulation, on-site debugging, product testing center, and structural finite element analysis.
