Welcome to Chongqing Huanxiang Industrial. Co., Ltd.
Home / Products / Steam Turbine Parts / Customized High-Strength Quenched-and-Tempered Alloy Steel Hydraulic Actuator Piston Rod with Precision Polishing and Hard-Chrome Plating
Quality Customized High-Strength Quenched-and-Tempered Alloy Steel Hydraulic Actuator Piston Rod with Precision Polishing and Hard-Chrome Plating factory
Quality Customized High-Strength Quenched-and-Tempered Alloy Steel Hydraulic Actuator Piston Rod with Precision Polishing and Hard-Chrome Plating factory

Customized High-Strength Quenched-and-Tempered Alloy Steel Hydraulic Actuator Piston Rod with Precision Polishing and Hard-Chrome Plating

Tags

steam turbine components

steam turbine spare parts

steam turbine spares
Product Summary
Customized steam turbine hydraulic actuator piston rod made from high-strength quenched-and-tempered alloy steel with precision polishing and hard-chrome plating. Features high structural rigidity, excellent wear/corrosion resistance, and strict factory calibration for superior fitting performance. Reduces equipment failures and maintenance costs for industrial turbine units.

Product Details

Highlight:

High-Strength Quenched-and-Tempered Alloy Steel Hydraulic Actuator Piston Rod

,

Precision Polishing and Hard-Chrome Plating Actuator Piston Rod

,

Strict Factory Calibration for Coaxiality Steam Turbine Piston Rod
Material: High-strength Quenched-and-tempered Alloy Steel
Surface Finish: Precision Polishing And Hard-chrome Plating
Structural Rigidity: High
Anti-Bending Performance: Outstanding
Wear Resistance: Excellent
Corrosion Resistance: Excellent
Product Description
Customized Steam Turbine Hydraulic Actuator Piston Rod
During steam turbine governing system operation, the actuator piston rod serves as the core force-bearing transmission component. Its upper end connects to the pull rod via a spherical plain bearing, directly determining control valve action accuracy and overall operational stability. Excessive verticality installation error during on-site equipment installation can lead to multiple equipment hazards, shortened component service life, and compromised power generation safety.
Equipment Hazards from Verticality Deviation
The hydraulic actuator performs small-amplitude swinging motion through hinge pins during operation. If piston rod installation verticality requirements are not met, uneven loading occurs on the spherical plain bearing, and eccentric friction develops between piston and cylinder barrel. After prolonged operation, this leads to:
  • Scratches on piston rod surface and abnormal wear of sealing assemblies
  • Oil seepage and actuator leakage
  • Bending deformation of the valve stem
  • Vibration transmission to feedback levers and pilot valves
  • Reduced regulation precision of unit control valves
  • Unstable rotating speed during unit warm-up and potential protective interlock trips
Precision Control Measures for Verticality Installation
Multiple practical measures ensure installation accuracy during maintenance and installation:
  • Secure actuator cylinder base and adjust shims on supports to ensure perpendicularity between cylinder and valve beam
  • Evenly set pre-compression length of disc springs on both sides to minimize cylinder swinging amplitude
  • Strictly control assembly clearances of all parts
  • Maintain coaxial pin holes of spherical plain bearing for smooth hinge pin fitting
  • Avoid internal stress from forced assembly misalignment
  • Precisely calibrate mechanical zero-point and reserve reasonable valve beam idle travel
  • Perform repeated measurements with spirit levels and dial indicators to eliminate tilting stress
High-Quality Piston Rod Selection
To fundamentally avoid piston rod bending and sealing part abrasion damage, high-quality actuator piston rods significantly improve service conditions:
Manufactured from high-strength quenched-and-tempered alloy steel with high structural rigidity and outstanding anti-bending performance
Precision polishing and hard-chrome plating surface finish for excellent wear and corrosion resistance during long-term reciprocating service
Strict factory calibration ensures machining coaxiality
Matched with high-precision spherical plain bearings for superior fitting performance and effective lateral stress buffering
Widely applicable to various industrial turbine unit actuators, these rods mitigate component wear and reduce subsequent maintenance costs while maintaining standard operating verticality over extended service cycles.

Mr. Tom Hu

General Manager

Related Products

Send An Inquiry