AVM Extraordinary Intelligent Control Equipment Co., Ltd.
AVM Extraordinary Intelligent Control Equipment Co., Ltd.
Products
Sanitary Single-Seat Shut-Off Valve
  • Sanitary Single-Seat Shut-Off ValveSanitary Single-Seat Shut-Off Valve
  • Sanitary Single-Seat Shut-Off ValveSanitary Single-Seat Shut-Off Valve

Sanitary Single-Seat Shut-Off Valve

The AVM Sanitary Single-Seat Shut-Off Valve is designed for hygienic process lines that require dependable on/off isolation, easy maintenance, and consistent sealing under repeated production cycles. Unlike a mixproof valve that focuses on separating two process media or a divert valve designed for changing flow direction, the single-seat shut-off valve focuses on one essential task: reliably stopping or allowing process media through a sanitary pipeline.

With a compact single-seat structure, 316L stainless steel product-contact components, smooth internal surfaces, and manual or pneumatic operation, the AVM Sanitary Single-Seat Shut-Off Valve provides a practical solution for hygienic fluid isolation in food, beverage, dairy, brewery, pharmaceutical, biotechnology, cosmetic, and sanitary chemical processing.

Its CIP/SIP-compatible construction reduces the need for frequent dismantling, while FDA-compliant sealing options and sanitary connection standards allow the valve to be integrated into different hygienic processing systems.

Sanitary Single- seat Shut-off ValveSanitary Single- seat Shut-off Valve

Reliable Isolation for Hygienic Process Lines

1. Precise On/Off Flow Control

The AVM single-seat shut-off valve is primarily designed to open or close a process line, providing a straightforward way to isolate equipment, pipelines, tanks, and processing sections.

Its simple operating principle makes it suitable for applications where reliable flow isolation is more important than complex flow routing.

2. Secure Shut-Off Under Process Conditions

A precision-machined valve seat works together with the selected sanitary seal to create a reliable sealing interface. This helps minimize unwanted leakage when the valve is closed, even when the process experiences changes in pressure or temperature within the specified operating range.

3. Compact Solution for Pipeline Isolation

Compared with more complex multi-seat valve arrangements, the single-seat structure provides a compact configuration that is easier to install and maintain.

It can be used at pipeline branches, equipment inlets and outlets, tank connections, and other points where dependable isolation is required.

Sanitary Single- seat Shut-off Valve Sanitary Single- seat Shut-off Valve

Hygienic Design Focused on Cleanability

1. Minimized Dead-Leg Structure

The internal flow path is designed to minimize dead spaces where product residue, cleaning fluid, or microorganisms could accumulate.

This is particularly important in applications where production batches are changed frequently or where strict hygienic control is required.

2. Smooth Product-Contact Surfaces

The internal surface finish can reach Ra ≤0.4–0.8 μm, with electropolishing available as an option. A smooth surface helps reduce product adhesion and supports more effective cleaning during CIP cycles.

3. 316L Stainless Steel Product Construction

The valve body and internal product-contact components are manufactured from sanitary-grade stainless steel, with ASTM 316L / 1.4404 stainless steel available for demanding hygienic applications.

The material provides corrosion resistance against compatible process media and repeated cleaning agents.

4. 3-A and FDA-Oriented Hygienic Configuration

The valve is designed for hygienic processing systems requiring 3-A sanitary standards, while available EPDM, Silicone, and FKM seals use FDA-compliant materials.

For pharmaceutical, food, and beverage applications, buyers can select the appropriate configuration according to their regulatory and process requirements.

CIP/SIP Performance and Maintenance

1. Designed for Repeated CIP Cycles

The streamlined internal structure allows cleaning fluids to pass through the valve during CIP operations, helping remove residual product without requiring routine disassembly.

2. Suitable for SIP Applications

The valve can be configured for repeated sterilization cycles, with the applicable temperature determined by the selected seal material and valve configuration.

3. Easy Seal Inspection and Replacement

The valve structure allows key wear components to be accessed for inspection and replacement. Regular seal inspection can help identify wear before it affects process reliability.

4. Reduced Maintenance Downtime

The combination of a simple single-seat structure, replaceable sealing components, and easy-access construction helps reduce maintenance time compared with more complicated valve assemblies.

Manual or Pneumatic Operation

1. Manual Handle

Manual operation provides a straightforward solution for pipelines where valve switching is performed by operators and automatic control is not required.

2. Normally Closed Pneumatic Actuator

A normally closed configuration keeps the valve closed when pneumatic control is not applied, making it suitable for process lines where a closed position is preferred as the default operating state.

3. Normally Open Pneumatic Actuator

A normally open configuration allows the valve to remain open under the defined default condition and can be selected according to the process control strategy.

4. Double-Acting Pneumatic Actuator

The double-acting configuration provides pneumatic control for both opening and closing operations, making it suitable for automated production systems requiring controlled valve movement.

5. Position and Intelligent Control

Optional position feedback units, control tops, solenoid valves, and intelligent controllers allow the AVM valve to be connected to automated process control systems.

Technical Specifications

Parameter Specification
Product Sanitary Single-Seat Shut-Off Valve
Brand AVM
Valve Type Sanitary Shut-Off / Hygienic Isolation Valve
Available Sizes DN10–DN100; specific standard configuration DN25–DN100 / 2"–4"
Body Material AISI 304 / ASTM 316L Stainless Steel; 1.4404
Internal Components Precision-Machined Sanitary-Grade Stainless Steel
Internal Surface Finish Ra ≤0.4–0.8 μm
Electropolishing Optional, Ra ≤0.4 μm
Seal Materials EPDM, PTFE, Silicone, FKM
Seal Compliance FDA-compliant food-grade options
Working Pressure Up to 10 bar, customizable; standard configuration up to 5 bar
Working Temperature -10°C to 150°C, depending on configuration and seal material
Operation Manual / Pneumatic
Connection Types Clamp, Weld, Thread, Flange
Standards SMS, DIN 11851, ASME BPE, RJT, IDF
Optional Accessories Position Feedback Unit, Control Top, Solenoid Valve, Intelligent Controller

Connection and Standard Options

1. Tri-Clamp and Clamp Connections

Clamp connections provide fast installation and convenient disassembly, making them suitable for sanitary processing systems that require frequent inspection or maintenance.

2. Welded Connections

Butt-welded connections provide a permanent pipeline connection with fewer detachable joints and are suitable for hygienic systems where smooth internal transitions are important.

3. Threaded and Flanged Connections

Threaded and flanged configurations can be selected for compatible process equipment and pipeline layouts where different installation or maintenance requirements apply.

4. International Sanitary Standards

AVM can configure the valve according to commonly used sanitary connection standards including SMS, DIN 11851, ASME BPE, RJT, and IDF, helping buyers match the valve with existing process piping.

Material and Seal Selection

1. Stainless Steel Selection

AISI 304 provides a practical option for suitable sanitary applications, while 316L stainless steel is preferred where higher corrosion resistance and demanding product-contact conditions are required.

2. EPDM Seals

EPDM is suitable for many water-based and general hygienic processing applications. Final selection should be based on the process medium and cleaning conditions.

3. Silicone Seals

Silicone can be selected for applications requiring suitable flexibility and temperature performance, subject to process compatibility.

4. FKM Seals

FKM provides resistance to many oils, chemicals, and higher-temperature applications. Compatibility with the actual process and cleaning media should be confirmed before selection.

5. PTFE Options

PTFE can be specified where its chemical resistance and temperature characteristics are advantageous for the intended application.

Quality Control Before Shipment

1. Material Verification

Stainless steel materials and relevant material documentation can be checked against the specified valve configuration.

2. Dimensional Inspection

Critical dimensions and connection interfaces are inspected to ensure compatibility with the customer's piping and equipment.

3. Pressure Testing

Pressure testing is performed to verify the mechanical integrity of the valve under specified test conditions.

4. Seal Leakage Testing

The sealing system is checked for leakage to verify shut-off performance before shipment.

5. Surface Finish Inspection

Internal and external surface conditions are inspected according to the specified finish requirements.

6. Functional Operation Testing

Manual and pneumatic configurations are checked for proper opening, closing, and actuator operation before delivery.

Applications

1. Dairy Processing

Used for isolating milk, cream, liquid dairy products, and compatible cleaning lines where strict hygiene and frequent CIP cleaning are required.

2. Food Processing

Suitable for hygienic liquid food production lines requiring reliable isolation at processing equipment, tanks, and pipeline sections.

3. Beverage and Brewery Systems

The valve can be installed in beverage, beer, and liquid processing systems for product-line isolation and equipment shutdown.

4. Pharmaceutical Manufacturing

For compatible pharmaceutical applications, the hygienic surface finish, sanitary construction, and CIP/SIP capability support controlled process environments.

5. Biotechnology and Laboratory Systems

The compact single-seat configuration can be used for hygienic fluid isolation in biotechnology and laboratory process equipment where cleanability and controlled flow are important.

6. Cosmetic Production

Suitable for cosmetic liquid processing systems requiring clean product handling and dependable pipeline isolation.

How to Select the Right AVM Single-Seat Valve

1. Confirm the Pipeline Size

Select the valve according to the existing pipe diameter, required flow capacity, and connection standard. AVM configurations are available across a broad sanitary size range.

2. Check Pressure and Temperature

Confirm the actual working pressure and operating temperature before selecting the valve body and seal configuration. The maximum applicable temperature depends on the selected materials.

3. Select the Seal Material

Choose EPDM, PTFE, Silicone, or FKM according to the process medium, cleaning chemicals, sterilization conditions, and expected operating temperature.

4. Determine the Operating Method

Choose manual operation for simple local isolation or pneumatic operation when the valve needs to be integrated into an automated production system.

5. Confirm the Connection Standard

Provide the required connection type and standard, such as Tri-Clamp, weld, thread, flange, DIN 11851, SMS, IDF, RJT, or ASME BPE.

Why Choose AVM?

1. Focused on Reliable Pipeline Isolation

The single-seat configuration provides a practical solution when the primary requirement is dependable opening and closing rather than complex media separation or flow diversion.

2. Built Around Cleanability

The minimized dead-leg design, smooth internal finish, and CIP/SIP compatibility help reduce product residue and simplify hygienic maintenance.

3. Flexible Configuration

AVM offers multiple body materials, seal options, connection standards, operating methods, and automation accessories to match different processing environments.

4. Suitable for Automated Production

Pneumatic actuators, position feedback, solenoid valves, control tops, and intelligent controllers allow the valve to be incorporated into modern automated processing systems.

Frequently Asked Questions

1. What is a sanitary single-seat shut-off valve used for?

It is primarily used to isolate or open a single process flow path in hygienic piping systems. Typical applications include equipment isolation, tank connections, pipeline sections, and process line shutdown.

2. What is the difference between a single-seat shut-off valve and a mixproof valve?

A single-seat shut-off valve is mainly designed for straightforward flow isolation. A mixproof valve uses multiple sealing seats and a leakage chamber to separate two process media and reduce cross-contamination risks.

3. Can the AVM valve be used for CIP and SIP?

Yes. The sanitary design supports CIP cleaning and can be configured for repeated sterilization cycles according to the selected valve and seal materials.

4. What material is recommended for product-contact parts?

316L stainless steel is generally preferred for demanding hygienic product-contact applications because of its corrosion resistance and sanitary performance.

5. Is pneumatic operation available?

Yes. AVM provides normally closed, normally open, and double-acting pneumatic actuator configurations, as well as automation accessories.

6. What is the available valve size?

The overall specified range is DN10–DN100, with standard configurations including DN25–DN100 and 2"–4". The exact available size should be confirmed according to the selected connection and valve configuration.

7. What pressure can the valve handle?

The general specification allows up to 10 bar with customization, while the standard configuration is rated up to 5 bar. The actual pressure rating should be confirmed for the selected model.

8. Can AVM provide different sanitary connection standards?

Yes. Available options include SMS, DIN 11851, ASME BPE, RJT, IDF, as well as clamp, weld, threaded, and flange connection configurations.

Request an AVM Sanitary Valve Solution

If your production line needs a compact, hygienic, and maintainable solution for reliable pipeline isolation, the AVM Sanitary Single-Seat Shut-Off Valve provides a flexible configuration for different process conditions.

Send AVM your pipeline size, process medium, pressure, temperature, seal requirement, connection standard, and manual or pneumatic operation requirement to identify the appropriate valve configuration for your application.

Hot Tags: Sanitary Single-Seat Shut-Off Valve, Sanitary Shut-Off Valve Supplier, Hygienic Single-Seat Valve Manufacturer
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