Starch Slurry Pressure Control Valve

Product Specifications

Technical details and manufacturing context for Starch Slurry Pressure Control Valve

Definition

The Starch Slurry Pressure Control Valve is a flow control component used in starch manufacturing plants to maintain precise pressure levels during slurry transport between processing stages. It ensures consistent viscosity and prevents pipeline damage from pressure fluctuations. This valve is essential for optimizing starch extraction efficiency and product quality in industrial grain milling operations. Manufacturers integrate it into automated control systems for real-time pressure management.

The valve operates within a pressure range of 1.0–1.6 bar and handles flow capacities from 2.5 to 25 m³/h. It is available in connection sizes DN25 to DN100 (DIN EN 1092-1). The response time to achieve pressure stabilization is ≤1 ms, and the pressure accuracy is ±0.05%. The operating temperature range is -20 to 120 °C. The valve body is made of 316L stainless steel (equivalent to CF8M per ASTM A351), with PTFE seals and an EPDM diaphragm. The seat material is PTFE for chemical resistance. The actuator is pneumatic (air-to-open or air-to-close), and the positioner requires a 24 V DC supply (±10%). The enclosure rating is IP65 (IEC 60529). The weight varies from 15 to 60 kg depending on size and actuator.

This valve is designed for integration into automated control systems, providing real-time pressure management. It is suitable for starch slurry applications where precise pressure control is critical to maintain product quality and prevent equipment damage. The valve's materials are selected for compatibility with starch slurries, offering corrosion resistance and durability.

For procurement, verify model-specific values and standards with the legal manufacturer or supplier. The listed parameters are reference ranges and must be confirmed for the actual model and application. Ensure that the valve meets the required pressure, flow, and temperature specifications for your specific process. Also, confirm the actuator type and control signal compatibility with your existing control system. Regular maintenance, including inspection of seals and diaphragm, is recommended to ensure reliable operation.

Working Principle

The valve uses a spring-loaded diaphragm or piston mechanism that responds to upstream pressure changes. When upstream pressure increases, the mechanism adjusts the orifice opening to maintain downstream pressure within set parameters. The actuator, either air-to-open or air-to-close, positions the valve based on control signals. The positioner ensures accurate positioning, and the response time is ≤1 ms. This automatic adjustment prevents pressure fluctuations that could damage pipelines or affect slurry viscosity.

Common Materials

316L Stainless Steel, PTFE Seals, EPDM Diaphragm

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pressure RangeRequired	1.0–1.6 bar	Operating pressure range for starch slurryISO 5208
Flow CapacityRequired	2.5–25 m³/h	Maximum starch slurry flow rate
Connection SizeRequired	DN25–DN100 DN	Pipeline connection diameterDIN EN 1092-1
Response Time	≤1 ms	Time to achieve pressure stabilization
Temperature RatingRequired	-20–120 °C	Maximum operating temperature
Pressure Accuracy	±0.05 %	Pressure control precision
Valve Body Material	CF8M	Equivalent to 316 stainless steelASTM A351
Seat Material	PTFE	For chemical resistance
Actuator Type	Pneumatic	Air-to-open or air-to-close
Supply Voltage	24 ±10% V DC	For positioner
Enclosure Rating	IP65	For actuator and positionerIEC 60529
Weight	15–60 kg	Depending 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 Part
Main structural housing and flow path

Material: 316L Stainless Steel
Control Diaphragm Part
Pressure-sensitive membrane for orifice adjustment

Material: EPDM Rubber
Spring Assembly Part
Provides counterforce for pressure regulation

Material: Stainless Steel Spring
Seal Ring Part
Prevents slurry leakage at connection points

Material: PTFE
Pressure Adjustment Screw Optional Part
Manual pressure setpoint adjustment

Material: Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Starch Slurry Pressure Control Valve.

Manufacturers of Starch Slurry Pressure Control Valve

Manufacturer profiles associated with Starch Slurry Pressure Control Valve.

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Frequently Asked Questions

What is the operating pressure range of this valve?

The operating pressure range is 1.0–1.6 bar, as listed in the directory. However, you must verify the exact range for your specific model and application with the manufacturer or supplier.

What materials are used in the valve construction?

The valve body is made of 316L stainless steel (equivalent to CF8M per ASTM A351). Seals are PTFE, and the diaphragm is EPDM. The seat material is PTFE. Confirm material compatibility with your process fluid.

What is the response time of the valve?

The response time to achieve pressure stabilization is ≤1 ms, as stated in the directory. This is a reference value; actual response may vary with model and operating conditions.

What are the electrical requirements for the positioner?

The positioner requires a 24 V DC supply with ±10% tolerance. The enclosure rating is IP65. Verify these specifications 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 (g)
flow rate:	Up to 50 m³/h
temperature:	5°C to 120°C
slurry concentration:	Up to 40% solids by weight