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1 Manual Welded Sanitary Butterfly Valve
1 Manual Welded Sanitary Butterfly Valve 1 Manual Welded Sanitary Butterfly Valve

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Manual Welded Sanitary Butterfly Valve

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Our Manual Welded Sanitary Butterfly Valve is a compact, high-efficiency hygienic flow control solution designed for sanitary pipeline systems in food, beverage, and pharmaceutical industries. 
  • KST&OEM&ODM Brand

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Sanitary Butterfly Valves


Product Overview


Featuring a space-saving lightweight design, this valve delivers reliable throttling and isolation performance, with manual operation for precise on-site flow control. Manufactured from premium 304/316L stainless steel with FDA-compliant sealing materials, it meets the strict hygiene and safety requirements of business buyers in sanitary process industries, with customizable configurations to fit diverse pipeline needs.


Key Features & Business Benefits


Crevice-Free Hygienic Design for Sanitary Processes

With a smooth, dead-zone-free flow path and ultra-fine surface finish (internal Ra ≤ 0.8μm), our sanitary manual butterfly valve eliminates media retention and bacterial growth risks. It fully supports CIP/SIP cleaning cycles, reducing cleaning time and production downtime, while ensuring full compliance with global food and pharmaceutical safety regulations.


Precise Flow Control & Lockable Operation

Equipped with a wide range of manual handle options, this welded hygienic butterfly valve can be mechanically locked in open, closed, or intermediate positions, enabling accurate flow regulation and preventing accidental operation. This enhances process stability and reduces product waste caused by inconsistent flow control.


Compact Design & Cost-Effective Installation

The ultra-compact wafer-style design saves up to 50% more installation space compared to globe valves, making it ideal for tight pipeline layouts. Available in multiple connection methods including welded, tri-clamp, threaded, and flanged, it adapts to existing sanitary pipelines with no costly modifications, cutting your installation and engineering costs.


FDA-Compliant & Globally Certified

All wetted parts are made from food-grade 304/316L stainless steel, with sealing materials fully compliant with FDA 177.2600 standards. Manufactured to DIN, SMS, 3A, and ISO international standards, this food grade butterfly valve simplifies your regulatory compliance process and supports global market access for your equipment.


Technical Specifications


Parameter

Specification

Model Range

DN15 ~ DN200

Working Pressure

0 ~ 1.0MPa (10bar)

Medium Temperature Range

-20°C ~ 150°C

Ambient Temperature Range

-20°C ~ 80°C

Valve Body Material

CF8 (304), CF8M (316L), CF3M

Standard Sealing Material

EPDM

Optional Sealing Materials

PTFE, FPM, Silicone, NBR

Control Modes

Manual, Single-acting/Double-acting Pneumatic, Electric

Connection Methods

Welded, Tri-Clamp, Male Threaded, Flanged

Design Standards

DIN, SMS, 3A, ISO, IDF, RJT

Internal Surface Finish

Ra ≤ 0.8μm

External Surface Finish

Ra ≤ 1.6μm


Operating Principle


Our stainless steel manual butterfly valve operates via a 90-degree rotary motion mechanism. The manual handle drives the valve stem, which rotates the disc inside the valve body to open, close, or throttle the media flow. For manual operation, the handle can be mechanically locked in any position to maintain a fixed flow rate, ensuring consistent process control. When equipped with an optional actuator, the axial movement of the piston is converted into 90-degree rotation of the valve stem, with increased torque when the disc contacts the seal ring to deliver a bubble-tight shut-off, even under full working pressure.


Industry Applications


This manual sanitary butterfly valve is the preferred flow control solution for business users in sanitary process industries, including food & beverage (dairy processing, beer brewing, soft drink production, edible oil handling), pharmaceutical (purified water systems, oral liquid production), cosmetics & personal care (cream, lotion manufacturing), and drinking water treatment (ultra-pure water systems).


Optional Accessories & OEM/ODM Services


We offer a full range of customizable options, including multiple handle types (two-position, three-position, multi-position pull rod, plastic/stainless steel handles), optional pneumatic/electric actuators, intelligent controllers, solenoid valves, and position sensors. Our comprehensive OEM/ODM services support private branding, custom material specifications, tailored connection standards, and custom packaging for bulk orders, with EN 10204 3.1B material certification available upon request.


FAQ


What handle options are available for your Manual Welded Sanitary Butterfly Valve?

We offer two-position, three-position, four-position pull rod, and multi-position plastic or stainless steel handles to meet diverse operation needs.


Do your sealing materials comply with FDA food contact standards?

Yes, all sealing materials fully comply with FDA 177.2600 standards, safe for direct contact with food, beverage, and pharmaceutical media.


What is the maximum working pressure of this sanitary butterfly valve?

The maximum working pressure is 1.0MPa (10bar), with 5~8bar control air pressure for optional pneumatic actuators.


Sanitary Butterfly Valves

Options



▶Handle:two-position handle, three-position handle, four position pull rod handle, multi-position plastic handle and multi-position stainless steel handle

▶Actuator:pneumatic stainless steel actuator,pneumatic aluminum actuator, electric actuator



Operating Principles



▶This series butterfly valve is either remote-controlled by means of an actuator or manually operated by means of a handle.

▶The actuator is made in three standard versions, normally closed(NC), normally open (NO) and air/air activated (A/A).

▶The actuator is designed so that an axial movement of a piston is transformed into a 90°rotation of a shaft.The torque of the actuator is increased when the valve disc contacts the seal ring of the

butterfly valve.valve is closed.

▶Selected The handle for manual operation mechanically can lock the valve in open,close,middle or other positions to control the flow rate.



OPERATING TORQUE [N.M]

15-3/4 25-1" 40-11/2'' 50-2 21/2" 65
3" 80
100-4''
125
150
5 8 10 14 15 18 18 20 35 55 70

Detect under pressure of 10Kgrs/cm


Technical parameters



  • Model Range: DN15~DN200

  • Applicable Pressure: 0~1.0MPa

  • Valve Body Material: CF8, CF8M, CF3M

  • SealingMaterial: PTFE, EPDM

  • Medium Temperature: -20~150°

  • Ambient Temperature: -20-80°C

  • Standard: DIN, SMS

  • Control Mode: Single-acting (NO/NC), Double actin (NO/NC), Manual

  • Connection Method: Welded, Tri-clamp, Male threaded, Flanged

  • Applicable Medium: Water, oil, gas

  • Application Industries: Food, brewing,dairy products, beverage processing. pharmaceuticaletc



Material Product wetted steel parts 304/316L
Other steel parts 304
Provide E N 10204 3.1Bcertificate
Seal material standard EPDM
option FPM,Silicone,NBR
All seal materials comply with FDA 177.2600
Temperature Working  temperature -20~+135℃(EPDM)
Sterilization temperature 150℃ (MAX  20min)
Pressure Working pressure 0~10bar
Control air pressure 5~8bar
Surface treatment Internal surface Ra ≤ 0.8μm
External surface Ra ≤ 1.6μm
Connection Connection  standard DIN,SMS,RJT,ISO,IDF,3A
Connection method: welding、thread、Tri-Clamp、flange
Operate modes Handle Handle: two-position handle, three-position handle, fou position pull rod handle, multi-position plastic handle and multi-position stainless steel handle
Actuator pneumatic stainless steel actuator, pneumatic aluminum actuator, electric actuator
Option Intelligent controller 24V DC
1/2 electromagnetism valve
Position sensor 24V DC
2 NPN/PNP position sensor


Applications



This series is sanitary butterfly valve operated by pneumatic or manual used for stainless steel pipeline system.





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