Valve Units for Tray Systems | Specifications & Verification

Product Specifications

Technical details and manufacturing context for Valve Units

Definition

Valve units are specialized control components integrated into tray systems (such as sieve trays or valve trays) that manage the flow, pressure, or directional movement of fluids, gases, or granular materials. They function as critical elements in separation, distribution, and process control applications within industrial equipment. These units operate by opening, closing, or partially obstructing passageways to control material flow, responding to system pressure, mechanical actuation, or automated signals to maintain desired process conditions. They optimize distribution across tray surfaces and ensure efficient separation or mixing operations. Valve units are available in materials including stainless steel, carbon steel, alloy steel, PTFE, and rubber compounds, selected based on media compatibility and pressure requirements. Key parameters include nominal diameter (15–300 mm per ISO 6708), operating pressure (1.0–1.6 MPa), flow coefficient (Cv 10–250 per IEC 60534-2-1), leakage rate (0.01–0.05% of rated Cv per ISO 5208), operating temperature (-40 to 85°C per IEC 60534-4), response time (0.5–2.0 s per IEC 60534-4), control signal (4–20 mA per IEC 60381-1), supply voltage (24 V DC ±10% per IEC 60038), ingress protection (IP54–IP65 per IEC 60529), body material (WCB/CF8/CF8M per ASTM A216/A351), seat material (PTFE/PEEK per ASTM D4894), and weight (5–150 kg). These values are reference ranges and must be verified for the specific model and application. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

Valve units regulate material flow by opening, closing, or partially obstructing passageways. They respond to system pressure, mechanical actuation, or automated signals to maintain desired process conditions. By adjusting the degree of opening, they control flow rate, pressure, and direction, optimizing distribution across tray surfaces and ensuring efficient separation or mixing. The actuation mechanism may be pneumatic, electric, or manual, depending on the application. The valve's design ensures tight shut-off when required, with leakage rates as low as 0.01% of rated Cv. The response time, typically 0.5–2.0 seconds, allows for precise control in dynamic processes. The operating envelope is defined by pressure, temperature, and media compatibility, with materials selected accordingly.

Common Materials

Stainless steel, Carbon steel, Alloy steel, PTFE (Polytetrafluoroethylene), Rubber compounds

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Diameter	15–300 mm	Matches pipe size; larger sizes require higher actuation force.ISO 6708
Flow Coefficient	10–250 Cv	Determines flow capacity; higher Cv for lower pressure drop.IEC 60534-2-1
Leakage Rate	0.01–0.05 % of rated Cv	Class IV–VI; lower leakage for tight shut-off.ANSI/FCI 70-2
Operating Temperature	-40–85 °C	Outside range, seals and actuators may fail.IEC 60534-4
Response Time	0.5–2.0 s	Faster for precise control; slower for large valves.IEC 60534-4
Control Signal	4–20 mA	Standard analog signal; digital protocols optional.IEC 60381-1
Supply Voltage	24 ±10% V DC	For electric actuators; other voltages on request.IEC 60038
Ingress Protection	IP54–IP65	IP65 for outdoor or washdown environments.IEC 60529
Body Material	WCB/CF8/CF8M	Select per media compatibility and pressure rating.ASTM A216/A351
Seat Material	PTFE/PEEK	PTFE for chemical resistance; PEEK for high temperature.ASTM D4894
Weight	5–150 kg	Varies with size and material; affects installation.

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 structural housing that contains and directs flow

Material: Stainless steel
Valve Disc/Plate Part
Movable element that opens/closes to control flow

Material: Stainless steel or alloy
Sealing Element Part
Provides leak-proof closure when valve is shut

Material: PTFE or rubber
Actuation Mechanism
System that controls valve movement (manual, pneumatic, or electric)

Material: Steel with corrosion-resistant coating

Applied To / Applications

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

Trays

View system integration details

Manufacturers of Valve Units

Manufacturer profiles associated with Valve Units.

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Frequently Asked Questions

What are the typical materials used for valve units?

Valve units are commonly made from stainless steel, carbon steel, alloy steel, PTFE, and rubber compounds. The choice depends on media compatibility, pressure, and temperature requirements. Always verify material suitability with the manufacturer.

What is the operating pressure range for these valve units?

The reference operating pressure range is 1.0 to 1.6 MPa. Confirm the exact range for your specific model and application.

How do I select the right valve unit for my process?

Selection should be based on required flow coefficient (Cv), pressure rating, temperature range, media compatibility, and actuation type. Review the parameters listed and consult the manufacturer to ensure the valve meets your process conditions.

What standards apply to valve units?

Relevant standards include ISO 6708 for nominal diameter, ISO 5208 for pressure and leakage, IEC 60534 for flow and temperature, IEC 60381 for control signals, IEC 60038 for voltage, IEC 60529 for ingress protection, and ASTM A216/A351 for body materials. These are verification references, not proof of compliance.

Data Basis

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

Preliminary Technical Classification

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pressure:	0 to 25 bar (max)
flow rate:	Up to 500 L/min
temperature:	-20°C to 150°C
slurry concentration:	Max 40% solids by weight

Valve Units

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards