Shandong Yuhong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of micro flow control valve in China. We have world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale bulk high-grade micro flow control valve from our factory.
A micro flow control valve holds steady regulation at flow rates where a small change moves the whole process - dosing, lab equipment, fine chemicals, pharma, semiconductor, and other precision service. It is built for accuracy at very low flow, not just a scaled-down standard valve.
Some valves move hundreds of cubic meters an hour; others move a few liters. The flow is smaller, but the accuracy bar is higher. Instead of shrinking the body and hoping, we design the trim for very small Cv so the valve makes fine adjustments without sudden jumps. Low-flow control is the harder problem: at tiny Cv, even a slight plug move shifts flow sharply, and a poorly designed trim lets the loop go unstable.
We design every valve from the conditions. Our engineers calculate Cv from your process data; the body follows the piping while the flow passage and trim are tuned to the small capacity you need. Better accuracy, no piping change.
Technical Parameters
|
Item |
Standard Options & Custom Range |
|
Product Name |
Micro Flow Control Valve |
|
Valve Type |
Globe Control Valve |
|
Size Range |
DN10–DN50 (3/8"–2") |
|
Pressure Rating |
PN16–PN160 / ANSI Class 150–900 |
|
Body Material |
CF8, CF8M, WCB, 316L, Duplex Stainless Steel |
|
Trim Material |
316, 316L, 17-4PH, Stellite |
|
Flow Characteristic |
Equal Percentage, Linear |
|
Cv Range |
Customized according to application |
|
Seat Type |
Soft Seat / Metal Seat |
|
Connection |
Flanged, Threaded, Socket Weld, Tube End |
|
Actuator |
Pneumatic Diaphragm, Electric |
|
Leakage Class |
ANSI/FCI 70-2 Class IV, V, VI |
|
Applicable Media |
Water, Gas, Solvent, Chemical Liquid, Dosing Chemicals |
|
Design Standards |
IEC 60534, ASME B16.34, ISO 9001 |
Key Features
Precise at Low Flow
Accuracy comes from the trim, not just the actuator. A much smaller flow passage gives the valve finer resolution at low openings, so it adjusts smoothly instead of stepping.
Cv Built for the Job
Every low-flow duty is different - a trace of dosing chemical, a whisper of process gas, an expensive liquid. We calculate Cv before production and redesign or narrow the trim to match, so an oversized capacity never destabilizes the loop.
Steady Near Close
Standard valves get twitchy near the closed position. This valve is built to hold steady even at very small openings, which lifts repeatability and lets the automatic system keep the process on setpoint.
Material to Media
Corrosive chemicals take stainless or special alloy; high-purity service gets body and trim matched to the spec. We select materials from what actually flows through the valve.
Applications
- Chemical dosing systems
- Laboratory equipment
- Pharmaceutical production
- Fine chemical processing
- Semiconductor manufacturing
- Water treatment dosing systems
- Catalyst injection
- Instrument gas control
- Analytical equipment
- Pilot plants
Manufacturing & Quality Control
At this scale, trim dimensions are tiny, so machining accuracy matters more than ever:
- Plug, seat, and stem CNC-machined; every critical dimension checked before assembly
- Shell pressure test, seat leakage test, stroke calibration, and functional test before shipment
Project documentation available: material certificates, pressure test reports, and inspection records.
Packaging & Shipping
Each valve is cleaned before packing; connection ends get plastic covers to keep dust out. Small valves ship in export cartons or wooden cases by quantity. Labels carry model, Cv, pressure rating, and your order number.
Selection Guide
Pipe size alone will not select this valve. To get good control, send us:
- Process medium
- Flow rate
- Minimum flow
- Maximum flow
- Inlet pressure (P1)
- Outlet pressure (P2)
- Working temperature
- Pipe size
- Required leakage class
These decide the Cv and trim. Complete data up front means better control after startup.
FAQ
Q1: What makes a Micro Flow Control Valve different from a standard one?
The trim. It is built for very small Cv, so regulation stays precise at low flow.
Q2: Can the Cv be customized?
Yes. Cv is set from your operating conditions, with different trim designs covering different flow ranges.
Q3: Is this valve suitable for dosing systems?
Yes. It is common in chemical dosing, additive injection, and precision liquid control.
Q4: Can it control gas as well as liquid?
Yes, when the trim is selected for the service - both are supported.
Q5: What is the smallest valve size available?
It depends on the required Cv and conditions; our engineers recommend the right configuration.
Q6: What do you need to quote?
Medium, flow range, pressure, temperature, pipe size, and required control accuracy.
Why Choose Yuhong Valve
At extremely low flow there is no room for error - a valve that is fine in a general process can go unstable here. We match the valve to the conditions: calculate Cv, pick the trim, and prove it before production, which shortens commissioning.
Accurate low-flow control protects the bottom line. In dosing, a small deviation shifts final concentration; in pharma and fine chem it steadies the process; for equipment makers and integrators it simplifies commissioning. We hold consistent machining and repeatable performance, with full documentation - material certificates, inspection reports, dimensional drawings, pressure test records. Production records are kept for repeat orders, so future valves match the original across equipment batches and replacements.
Expert Valve Selection
Need a Micro Flow Control Valve for dosing, lab equipment, or precision process control?
Send us medium, flow range, pressure, temperature, and piping information. We will calculate the Cv and recommend the trim that fits.
Hot Tags: micro flow control valve, China micro flow control valve manufacturers, suppliers, factory
