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STB Bidirectional Throttle Valve

The STB Series Throttle Valve is designed for precise flow regulation in hydraulic systems. Available with G and NPT thread connections, it ensures easy integration into various pipeline standards. The valve features an adjustable flow control structure, with optional lock nut design for stable and secure settings.

Constructed from carbon steel with a 40Cr valve core, it provides excellent strength and wear resistance. The environmentally friendly zinc-plated surface enhances corrosion resistance, making it suitable for demanding industrial applications.

​Model Description

Bidirectional Throttle Valve
  1. Name code: STB series 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 Bidirectional 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
ModelLHDFM
STB-G1/4G/NPT1/454 72 32 20 M20x1
STB-G3/8G/NPT3/862 80 32 25 M25x1.5
STB-G1/2G/NPT1/273 92 45 30 M30x1.5
STB-G3/4G/NPT3/484 100 45 40 M35x1.5
STB-G1G/NPT1102 122 45 50 M40x1.5
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