20YL-08 DIRECT-ACTING RELIEF VALVE
Product Features
1. Adjustments cannot be backed out of the valve.
2. Adjustments prohibit springs from going solid.
3. Optional spring ranges to 350 bar (5100 psi).
4. Fast, smooth response to pressure surges.
5. Compact size.
Product Specifications
| Product Model | 20YL-08 DIRECT-ACTING RELIEF VALVE |
| Operating Pressure | 350 bar(5100 psi) |
| Flow | The Performance Chart illustrates the flow handling capacity of different springs at maximum setting. Pressure rise will vary with setting due to spring and flow forces. |
| Internal Leakage | 0.25 ml/min. (5 drops/minute) max. to 80% of nominal setting |
| Crack Pressure Defined | Gauge bar (psi) evident at ① at 16.4 ml/min. (1 cu. in./minute) attained |
| Reseat Pressure | Nominal 80% of crack pressure |
| 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: 0.15 kg. (0.33 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces. |
Product Operation Symbol
The 20YL-08 relieves the pressure to ② from ① once the pre-determined pressure was attained at ① , intended to reduce pressure.
Performance/Dimension
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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.
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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.
