Editorial Technical Reference

Water Flow Control Valve

This page explains how Water Flow Control Valve is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

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Product Specifications

Technical details and manufacturing context for Water Flow Control Valve

Definition

This water flow control valve is a precision component designed for laminar cooling systems, where it regulates the volumetric flow rate of cooling water to maintain consistent temperature distribution and cooling efficiency. The valve operates by adjusting the cross-sectional area of the flow path via a movable element such as a gate, ball, or diaphragm, modulating resistance to water flow. It is available in nominal diameters from DN15 to DN300 (ISO 6708), with flow coefficients (Cv) ranging from 2.5 to 1200 US gal/min (IEC 60534-2-1). Operating pressure is specified between 1.0 and 1.6 MPa, and operating temperature ranges from -10 to 80°C. The valve achieves a leakage rate of ≤0.01% of rated Cv, control accuracy of ±2% of full scale (IEC 60534-4), and response time of ≤1.5 seconds (IEC 60534-4). It is equipped with a standard electric actuator requiring 24 ±10% V DC supply (IEC 60534-4) and accepts a 4-20 mA control signal (IEC 60534-4). Ingress protection is rated IP54 to IP65 (IEC 60529). Body materials include WCB or CF8M (ASTM A216/A351), and seat materials are PTFE or PPL (ASTM D4894). Weight ranges from 5 to 350 kg depending on size and actuator. These specifications serve as directory reference ranges; verify model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

The valve regulates water flow by varying the cross-sectional area of the flow path. A movable element—such as a gate, ball, or diaphragm—is positioned by an actuator in response to a control signal. Changing the element's position alters the resistance to flow, thereby adjusting the volumetric flow rate. The actuator receives a 4-20 mA signal and moves the element to achieve the desired setpoint, with a response time of ≤1.5 seconds. The valve is designed for precise control, with accuracy of ±2% of full scale, and tight shutoff with leakage ≤0.01% of rated Cv. The operating pressure range is 1.0-1.6 MPa. The valve is suitable for laminar cooling systems where consistent water flow is critical for temperature uniformity.

Common Materials

Stainless Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Diameter	DN15–DN300 mm	Select based on flow rate and pipe sizeISO 6708
Flow Coefficient (Cv)	2.5–1200 US gal/min	Determines flow capacity at given pressure dropIEC 60534-2-1
Operating Pressure	1.0–1.6 MPa	Below 1.0 MPa the seat load is insufficient
Operating Temperature	-10–80 °C	Seal material limits range
Leakage Rate	≤0.01% of rated Cv	Class VI shutoff for tight sealingISO 5208
Control Accuracy	±2% of full scale	Ensures precise flow regulationIEC 60534-4
Response Time	≤1.5 s	Full stroke from closed to openIEC 60534-4
Actuator Supply Voltage	24 ±10% V DC	Standard electric actuatorIEC 60534-4
Control Signal	4–20 mA	Analog input for positionerIEC 60534-4
Ingress Protection	IP54–IP65	Suitable for industrial environmentsIEC 60529
Body Material	WCB/CF8M	Carbon steel or stainless steelASTM A216/A351
Seat Material	PTFE/PPL	Resistant to water and corrosionASTM D4894
Weight	5–350 kg	Depends on size and actuator

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Valve Body
Main housing containing flow path and pressure boundaries

Material: Stainless Steel
Actuator
Mechanism for adjusting valve position (manual or automated)

Material: Stainless Steel/Plastic
Seal Part
Prevents leakage around moving parts

Material: EPDM Rubber
Flow Control Element
The gate, ball or diaphragm that moves in the flow path and actually changes the opening.
Valve Seat
The face the element closes onto; it is what makes the ≤0.01% Cv shutoff possible.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Laminar Cooling System

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Manufacturers of Water Flow Control Valve

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Frequently Asked Questions

What is the nominal diameter range of this valve?

The nominal diameter range is DN15 to DN300, per ISO 6708. This is a reference range; the actual size must be selected based on the required flow rate and pipe size for your specific application.

What is the operating pressure range?

The operating pressure range is 1.0 to 1.6 MPa. Always verify the pressure rating for your specific model.

What control signal does the actuator accept?

The standard electric actuator accepts a 4-20 mA analog control signal, per IEC 60534-4. This signal is used to position the valve for precise flow regulation.

What is the leakage rate and control accuracy?

The leakage rate is ≤0.01% of rated Cv, ensuring tight shutoff. Control accuracy is ±2% of full scale (IEC 60534-4). These values are reference; confirm with the manufacturer for your specific configuration.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 10 bar
flow rate:	0.5 to 50 L/min
temperature:	0°C to 120°C
slurry concentration:	0 to 5% solids by weight

Water Flow Control Valve

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