Pneumatic Single Seat Globe Control Valve
PN16~PN64
DN20~DN200mm
Steel, S.S.304, S.S.316
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


