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STU Unidirectional Throttle Valve

The STU Unidirectional Throttle Valve is designed for precise flow control in one direction while allowing free flow in the opposite direction. Available with G and NPT thread connections, it ensures easy compatibility with various hydraulic systems.

The valve features an adjustable flow structure with an optional lock nut for stable settings. Made from carbon steel with a durable 40Cr valve core, it offers excellent strength and wear resistance. The eco-friendly zinc-plated surface enhances corrosion resistance for long-term use.

​Model Description

  1. Name code: STU series one-way throttle valve
  2. Thread code: G thread, NPT thread

Technical Specifications
Limiting structure: with locking nut, without locking nut
Valve body material: carbon steel
Valve core material: 40Cr
Valve body surface treatment: eco-friendly zinc

Overall Dimensions

size of Unidirectional Throttle Valve
ModelSTU-G1/4STU-G3/8STU-G1/2STU-G3/4STU-G1
Maximum pressure40 40 40 40 32 
Maximum flow rate12 30 50 85 150 
Applicable mediumHydraulic Oil
ModelCLHDFMG
STU-G1/4G1/473 72 32 20 M20x1127 
STU-G3/8G3/882 80 32 25 M25x1.531 
STU-G1/2G1/298 92 45 30 M30x1.536.5 
STU-G3/4G3/4112 100 45 40 M35x1.542 
STU-G1G1142 122 45 50 M40x1.551 

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