LEVER TYPE PRESSURE REDUCING VALVE ONIOO
Product Model:Y45H/Y
Nominal Diameter:50~400mm
NominalPressure:6.4~10.0MPa
Suitable temperature:≤220°C
suitable Medium:steam
Product Listing: Y45H/Y Lever-Type Steam Pressure Reducing Valve
Reliable Manual Control for High-Pressure Steam Systems
Product Features & Applications
Purpose:
The Y45H/Y Series Lever-Type Pressure Reducing Valve is designed for manual regulation of steam pressure in industrial applications where precise, operator-controlled pressure management is required. Ideal for:
- Power Plants: Boiler feedwater control, turbine bypass lines, and auxiliary steam systems.
- Petrochemical Plants: Reactor cooling, distillation column heating, and process steam distribution.
- Heavy Industry: Steel mill reheating furnaces, paper mill digesters, and textile dyeing equipment.
- District Heating: Manual throttling of steam in remote or low-power environments.
Key Advantages:
- Robust Lever Mechanism: Heavy-duty forged steel lever for direct pressure adjustment under harsh conditions.
- High-Pressure Capability: Rated for PN64-PN100 (Class 400-600) with reinforced seat and stem design.
- Simplified Maintenance: No external sensors or pilots; easy in-line repair and calibration.
- Versatile Installation: Suitable for horizontal or vertical pipelines with bidirectional flow capability.
Technical Specifications
| Parameter |
Details |
| Model |
Y45H/Y Series |
| Nominal Diameter |
DN50-DN400 (2"-16") |
| Nominal Pressure |
PN64-PN100 (Class 400-600) |
| Temperature Range |
≤220°C (428°F) |
| Body Material |
WCB Carbon Steel, CF8M (316SS), or Alloy 20 (optional) |
| Trim Material |
Hardened Stainless Steel (410SS) or Stellited® |
| Connection |
Flanged (ANSI B16.5, DIN PN10/16/40) |
| Design Standards |
GB/T 12246, API 598, ASME B16.34, PED/ATEX |
| Suitable Medium |
Saturated/superheated steam, air, and non-condensing gases |
Quality & Compliance
- Material Testing:
- Spectrographic Analysis: Verifies alloy composition (PMI testing).
- NDT Inspection: 100% dye penetrant and magnetic particle testing for surface defects.
- Performance Validation:
- Shell Test: Hydrostatic pressure at 1.5× PN for 10 minutes (zero leakage).
- Seat Leakage: ANSI FCI 70-2 Class IV/V shutoff at rated pressure.
- Cycle Testing: 5,000+ full-stroke cycles without performance degradation.
- Certifications:
- ISO 9001:2015, PED Compliance, ASME Section III (N-Stamp) for nuclear applications.
- AD 2000-Merkblatt W0 for European pressure equipment.
- Warranty: 18 months from installation (extendable to 24 months with annual service contracts).
Product Details
- Operational Principle:
- Lever-Actuated Design: Adjustable weight-loaded lever amplifies operator input for fine pressure control.
- Self-Actuating Option: Available with pilot-assisted diaphragm for semi-automatic operation.
- Construction Highlights:
- Forged Steel Lever: Heat-treated alloy steel for strength in high-vibration environments.
- Replaceable Seat Ring: Precision-lapped for bubble-tight shutoff (ANSI Class VI optional).
- Anti-Cavitation Trim: Multi-stage pressure reduction to minimize wear in high-differential applications.
- Typical Applications:
- Geothermal Power: Throttling steam from wells to turbines.
- Chemical Reactors: Maintaining constant jacket heating pressure.
- Emergency Shutdowns: Manual isolation of overpressurized steam lines.
- Why Choose Us?
- Custom Engineering: Lever throw adjustments for specific torque requirements.
- Global Support: On-site commissioning, operator training, and spare parts networks.
- Fast Delivery: Standard units ship in 15-20 days; expedited options via air freight.
Contact Us Today for dimensional drawings, material certifications (EN 10204 3.1B), or a customized quote!
Keywords: Lever-Type Steam Valve, High-Pressure Reducing Valve, Manual Pressure Control
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