PROS Flow Control Company | Industrial Valve Manufacturer & Supplier

About PROS Flow Control

PROS Flow Control Company is a leading manufacturer and supplier of industrial valves based in Wenzhou, China. With years of engineering expertise, we deliver reliable, high-performance valve solutions to clients across the globe.

We specialize in ball valves, butterfly valves, gate valves, globe valves, check valves, API 6A valves, and actuated valves, serving critical industries such as oil & gas, chemical processing, power generation, and offshore platforms.

Our commitment to quality, innovation, and long-term client partnerships ensures that every valve we produce meets the highest international standards.

50+

Countries Served

15+

Years Experience

ISO 9001

Certified

API 6A

Compliant

Our Valve Products

Engineered for performance, durability, and safety in the most demanding industrial environments.

Ball Valves

Full port and reduced bore designs with floating or trunnion-mounted configurations. Available in stainless steel, carbon steel, and alloy materials.

API 6D, ISO 17292 compliant
Sizes: 1/2" to 48"
Pressure Class: 150 to 2500

Butterfly Valves

High-performance triple offset and resilient seated butterfly valves for tight shut-off and long service life.

Wafer, lug, and flanged types
Sizes: 2" to 72"
Class 150 to 600

Gate Valves

Rising stem and non-rising stem designs with wedge or parallel slide gates for reliable isolation.

API 600, BS 1414 compliant
Sizes: 2" to 48"
Class 150 to 2500

Globe Valves

Precision throttling and regulating valves with guided disc and seat design for optimal flow control.

ANSI B16.34 compliant
Sizes: 1/2" to 24"
Class 150 to 2500

Check Valves

Swing, lift, and dual plate check valves to prevent backflow in piping systems.

API 598 tested
Sizes: 1/2" to 48"
Class 150 to 2500

API 6A Valves

High-pressure wellhead and Christmas tree valves for oil and gas upstream applications.

API 6A PR2 certified
2000, 3000, 5000, 10000 PSI
Gate, choke, and check types

Actuated Valves

Manual, pneumatic, electric, and hydraulic actuated valves for automated process control.

Explosion-proof options
Smart positioners
NAMUR, ISO 5211 mounting

Custom Valve Solutions

OEM and ODM services for specialized valve designs, materials, and configurations.

Material: Monel, Inconel, Hastelloy
Cryogenic and high-temp options
NACE MR0175 compliant

Our Quality Assurance

Every valve undergoes rigorous testing and inspection to ensure reliability and compliance with international standards.

Chemical Test (PMI)

Positive Material Identification ensures correct alloy composition and material traceability.

Cryogenic Test

Valves tested at -196°C to ensure performance in liquefied gas and cryogenic applications.

Roundness Checking

Precision measurement of bore and sealing surfaces to ensure leak-tight performance.

Fire Test

API 607/6FA fire-safe testing to ensure valve integrity during fire exposure.

Functional Test

Full operational testing including torque, cycle life, and sealing performance.

Certifications

ISO 9001, API 6A, API 6D, CE, and other international certifications maintained.

Industry Applications

Our valves are trusted in critical applications across multiple high-demand sectors.

Chemical, Gas & Oil

Corrosion-resistant valves for aggressive media, high pressure, and hazardous environments.

Offshore & Marine

Subsea and topside valves designed for saltwater exposure and extreme conditions.

Power Stations

High-temperature and high-pressure valves for steam, feedwater, and cooling systems.

Transportation

Pipeline and terminal valves for safe and efficient transfer of hydrocarbons.

Petrochemical Plants

Process isolation and control valves for refineries and chemical processing units.

Water & Wastewater

Durable valves for municipal and industrial water treatment and distribution.

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Precision Industrial Valves for Critical Applications