Pneumatic Single Seat Globe Control Valve

PN16~PN64
DN20~DN200mm
Steel, S.S.304, S.S.316 

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Pneumatic Actuated · S-Shaped Flow Port · Linear / Equal Percentage

Pneumatic Single Seat Globe Control Valves for Precision Flow Regulation

PN1.6~PN6.4MPa, Class 150/300/600LB, JIS 10K/16K/20K, sizes 3/4″ to 8″ (DN20~200mm), available in GG25, WCB, CF8, CF8M — leakage class IV/VI/II per ANSI B16.104, Cv ratio 50:1.

Overview

Pneumatic single seat globe control valve is top guide structure, which is equipped with pneumatic diaphragm actuator. Single seat globe control valve flow port is s-shaped, which is featured with little pressure drop, big valve cavity, accurate flow characteristic and easy assembly & disassembly. This type of single seat regulating valve is used widely to control accurately the gas or liquids pressure, flow, temperature and level, especially applicable to the working condition of allowing little and differential pressure before and after the valve is not big. Flowspec Luokai can manufacture and supply the pneumatic single seat globe control valve with leakage class ANSI B16.104 class IV, class VI, class II. Contact us today. Get the better prices. 30 years of experience. Great after-sales service.

1. Features

  • S shaped flow port, linear flow characteristic.
  • Small pressure drop loss, big flow capacity.
  • Compact structure, wide adjustable range.
  • Small noise, little cavitation corrosion.
  • Excellent regulation performance, accurate flow coefficient.

2. Technical Specifications

  • PN1.6~PN6.4Mpa, Class 150LB, 300LB, 600LB, JIS 10K, 16K, 20K
  • Size: 3/4″ ~ 8″ (DN20~DN200mm)
  • Materials: cast iron (GG25), carbon steel (WCB), stainless steel 304 (CF8), stainless steel 316 (CF8M)
  • Flow characteristic: linear, equal percentage
  • Intrinsic error: <±1%
  • Hysteresis: <±1%
  • Cv ratio: 50:1
  • Leakage class: ANSI B16.104 class IV, class VI, class II
  • Applicable medium: water, oil, gas, corrosive liquids
  • Applicable temperature: -17℃~230℃ (higher temperature is available upon request)

3. Standards

  • Design & manufacturing: GB/T 12221-2005
  • Flanged ends: GB/T 9113.1-2000, ANSI 16.5, JIS B2201
  • Face to face: GB/T 12221-2005
  • Inspection & testing: GB/T 13927-2000

4. Applications

  • Power plant
  • Pharmaceutical factory
  • Chemical industry
  • Water plant
  • Steel plant
  • Metallurgy

Why Choose Flowspec Luokai

45+ Years Experience

Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.

Global Certifications

ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.

OEM Custom Solutions

Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.

Worldwide Delivery

Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.

Our Service Promise

Strict Quality Control

Every valve tested to API 598, EN 12266 before shipment

Timely Global Delivery

Reliable logistics to 5 continents with secure packaging

OEM & Custom Design

Tailored material, size, pressure and actuation to your specs

Dedicated After-Sales

Technical support and service throughout product lifecycle

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