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Industrial Control Valves Facility
FZV Control Valves

Precision Control Valves for Critical Flow Regulation

Engineered in our state-of-the-art facilities, FZV control valves deliver uncompromising accuracy, reliability, and manufacturing traceability for the most demanding industrial environments.

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Advanced Flow Control Engineering

At FZV — Fangzheng Valve Group, our control valves are the result of decades of expertise in industrial valve manufacturing. Leveraging our advanced machining and testing facilities in Wenzhou and Shanghai, we produce valves that ensure process stability, minimize downtime, and optimize operational efficiency.

  • Comprehensive Traceability: Strict material inspection and full manufacturing traceability for every component.
  • Versatile Actuation: Multiple actuation options seamlessly integrated and rigorously tested before deployment.
  • Robust Construction: Designed to withstand high pressure drops, cavitation, and severe service conditions.
Valve Engineering and Machining

Our Control Valve Portfolio

Discover our highly engineered solutions designed for precise regulation of liquids, gases, and steam in complex piping systems.

Single-seated Control Valve
High Precision

Single-seated Control Valve

The FZV Single-seated Control Valve is designed for applications requiring tight shut-off and precise flow modulation. Featuring a top-guided plug and a streamlined flow passage, it minimizes turbulence and pressure loss, making it highly effective for regulating process variables in demanding environments.

Size Range NPS 1/2" ~ 12" (DN15 ~ DN300)
Pressure Rating Class 150 ~ 2500 (PN16 ~ PN420)
Body Materials WCB, LCB, CF8, CF8M, CF3M
Leakage Class ANSI FCI 70-2 Class IV, V, VI
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Independent Operation

Self-Operated Control Valve

Engineered for autonomy, our Self-Operated Control Valves utilize the energy of the flowing medium itself to actuate, eliminating the need for external pneumatic or electrical power sources. Ideal for remote installations, tank blanketing, and pressure reduction stations, offering exceptional reliability and low maintenance.

Control Types Pressure, Temperature, Flow
Size Range NPS 1/2" ~ 8" (DN15 ~ DN200)
Set Point Range Customizable via spring selection
Actuator Type Diaphragm or Piston
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Self-Operated Control Valve

The FZV Manufacturing Advantage

Our integrated production capabilities ensure every control valve meets stringent international standards.

Precision Machining

State-of-the-art CNC centers in Wenzhou and Shanghai guarantee exact tolerances for critical internal components.

Material Traceability

Comprehensive PMIs and material certification ensure the integrity of pressure-containing parts from foundry to final assembly.

Custom Actuation

In-house assembly and calibration of pneumatic, electric, and hydraulic actuators with smart positioners.

Rigorous Testing

Every valve undergoes hydrostatic, seat leakage, and functional testing to ensure field reliability before dispatch.

Technical FAQ

Common inquiries regarding our control valve specifications and applications.

What information is required to size a control valve correctly?
To accurately size a control valve, our engineering team requires the fluid type, flow rate (min, normal, max), inlet pressure, allowable pressure drop, operating temperature, and specific gravity/density. Providing details on potential cavitation or flashing conditions is also crucial for selecting the right trim design.
Can Self-Operated Control Valves handle high pressure drops?
While self-operated valves are highly reliable, they have limitations regarding pressure drops compared to externally actuated single-seated valves. For severe service or very high pressure drops, a standard control valve with a pneumatic or electric actuator and specialized anti-cavitation trim is usually recommended. Consult our technical team with your specific process parameters.
Do you offer special materials for corrosive media?
Yes. While standard materials include Carbon Steel and Stainless Steel (CF8/CF8M), FZV can manufacture control valves in Duplex Stainless Steel, Monel, Hastelloy, Inconel, and other exotic alloys to withstand highly corrosive or erosive environments in chemical and petrochemical applications.

Request Technical Specifications or a Quote

Our engineering team is ready to assist you with valve sizing, material selection, and custom actuation requirements for your specific pipeline project.

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