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Дом / продукты / Детали турбин электростанции / Custom Design High Precision Corrosion Resistant DV Valve Piston for Steam Turbines
Качество Custom Design High Precision Corrosion Resistant DV Valve Piston for Steam Turbines Фабрика
Качество Custom Design High Precision Corrosion Resistant DV Valve Piston for Steam Turbines Фабрика
Качество Custom Design High Precision Corrosion Resistant DV Valve Piston for Steam Turbines Фабрика

Custom Design High Precision Corrosion Resistant DV Valve Piston for Steam Turbines

Бирки

Лопасти паровых турбин

подшипники паровых турбин

диафрагма паровых турбин
Резюме продукта
Изготовленные на заказ поршни клапана DV для паровых турбин обеспечивают плавное возвратно-поступательное движение, превосходную устойчивость к износу и коррозии, а также точное линейное управление потоком. Полностью настраиваемая структура, материал и обработка поверхности для решения проблем износа, прилипания и утечек в энергетическом оборудовании.

Детали продукта

Outer Diameter: Настраиваемый
Central Mounting Hole: Настраиваемый
Material Type: Среднеуглеродистая легированная сталь, азотированная специальная сталь, коррозионностойкая нержавеющ
Surface Treatment: Ионное азотирование, твердое хромирование, зеркальная полировка, антиэрозионное покрытие.
Tolerance Precision: Стандарты сверхвысокой точности уплотнений
Surface Roughness: Чрезвычайно низко
Характер продукции
Custom DV Valve Piston for Steam Turbines
Product Overview

The DV valve piston serves as the key reciprocating sliding component within steam turbine DV governing valves. Driven by EH hydraulic oil, it precisely adjusts steam intake volume to stabilize turbine rotation speed and unit load, directly determining the safety and regulation accuracy of power generation equipment.

Our factory specializes in custom manufacturing of DV valve pistons for power equipment manufacturers worldwide, delivering high-precision, long-life mechanical parts that solve frequent wear, sticking, and leakage issues common with original pistons.

Comprehensive Customization Solutions

We customize pistons fully according to customer working conditions, drawings, or physical samples:

  • Structural customization: Outer diameter, central mounting hole, multi-step flange, damping grooves, balance oil passages, sealing shoulder size
  • Material customization: Medium carbon alloy steel, nitriding special steel, corrosion-resistant stainless steel
  • Surface strengthening customization: Ion nitriding, hard chromium plating, mirror polishing, anti-erosion coating
  • Tolerance customization: Meet ultra-high precision sealing standards of high-pressure EH hydraulic systems
Outstanding Product Performance
Smooth Reciprocating Motion

Ultra-fine grinding and mirror superfinishing create extremely low surface roughness. Tight geometric tolerance control ensures consistent clearance between piston and valve sleeve, preventing valve vibration, sticking, and unstable flow adjustment during frequent load fluctuation and unit start-stop cycles.

Superior Wear & Corrosion Resistance

Dense hardened surface layer effectively resists erosion, oxidation, and impurity abrasion from high-temperature EH oil. This significantly reduces maintenance cycles and replacement frequency for power plant units, substantially lowering operational costs.

Precise Linear Flow Control

Symmetrically distributed throttling and balance structures ensure linear hydraulic response. The piston maintains stable regulation accuracy under long-duration variable load operation, improving overall unit efficiency and safety.

Complete Quality Control System
Inspection Stage Quality Checks
Raw Material Incoming Chemical composition analysis & hardness testing
Semi-Finished Product Dimensional tolerance & geometric error detection
Finished Product Three-coordinate measurement, surface flaw NDT, surface roughness testing
Final Validation Hydraulic matching simulation test paired with matching valve sleeves

All test data is recorded into formal inspection documents, supporting factory audits and comprehensive quality traceability.

Wide Application Scope

Applicable to DV control valves of all types of steam turbines, including:

  • 600MW, 300MW, 1000MW thermal power generating units
  • Waste heat power turbines
  • Industrial steam turbines
  • Matched EH hydraulic control systems
One-Stop Custom Service
  • Professional hydraulic mechanical engineers assist with drawing optimization
  • Flexible production lead times for prototype, small batch, and mass orders
  • Standard anti-rust oil + moisture-proof vacuum packaging for overseas transportation
  • Global after-sales team to quickly resolve on-site assembly and matching problems

Mr. Tom Hu

General Manager

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