Email: sales@kelorvalves.com
Phone: +91 93135 43530
Address: 133/1 Ground, Mansuri Block, Opp. Dudheshwar Water Tank, Ahmedabad-380004, Gujarat, India
DIN / SMS / RJT / ISO / IDF / 3A Compliant
Sanitary Stainless Steel Manual Welded Butterfly Valve
Premium hygienic flow control for dairy, food, beverage, and pharmaceutical processing. Available in SS304 and SS316 with butt-weld, clamped, or threaded ends. Featuring multi-position handles and seamless, crevice-free design for ultimate cleanability (CIP/SIP).
Featured Answer: A sanitary stainless steel manual welded butterfly valve is a hygienic isolation valve designed for permanent integration into sanitary piping systems via butt-weld, clamp, or threaded connections. Constructed from polished SS304 or SS316, it features a crevice-free disc and food-grade seals (EPDM/PTFE/Silicone) to prevent bacterial harborage. Ideal for dairy, food, beverage, and pharmaceutical applications requiring strict Clean-in-Place (CIP) and Sterilize-in-Place (SIP) compliance.
At-A-Glance Specifications
Valve TypeSanitary Manual Welded Butterfly Valve
Body MaterialSS304 / SS316 (Mirror Polished)
Size RangeDN10 (3/8″) to DN200 (8″)
ConnectionsWeld / Clamped / Threaded / Union-Nut / Flanged
StandardsDIN, SMS, RJT, ISO, IDF, 3A
Handle Options2/3/4-position pull, multi-position plastic, SS trigger
Temp. Range-10°C to +120°C
ApplicationsDairy, Food, Beer, Beverage, Pharma, Cosmetic
Contents
- 1. What is a Sanitary Manual Welded Butterfly Valve?
- 2. SS304 vs. SS316 for Food & Pharma
- 3. Manual Handle & Automatic Actuation Options
- 4. Global Sanitary Standards (DIN, SMS, 3A, etc.)
- 5. Industry Applications
- 6. Technical Specifications
- 7. Why Choose KELOR Sanitary Valves
- 8. Frequently Asked Questions
What is a Sanitary Manual Welded Butterfly Valve?
A sanitary manual welded butterfly valve is a specialized quarter-turn valve engineered for hygienic process lines where product purity and cleanability are paramount. Unlike industrial valves, sanitary valves are designed with smooth, mirror-polished internal surfaces, crevice-free disc edges, and food-grade sealing materials to prevent bacterial growth, biofilm formation, and product contamination.
The “welded” designation refers to the valve’s end connections, which are designed for permanent butt-welding into stainless steel piping systems. This creates a seamless, leak-proof joint that eliminates the dead spaces often associated with threaded or flanged connections, making it the gold standard for CIP (Clean-in-Place) and SIP (Sterilize-in-Place) systems in dairy, beverage, and pharmaceutical plants.
SS304 vs. SS316 for Food & Pharma
Choosing the right stainless steel grade is critical for maintaining hygiene and preventing corrosion in processing environments.
| Material Grade | Properties | Best For |
|---|---|---|
| SS304 (CF8) | Excellent corrosion resistance, cost-effective, highly polishable. | Dairy, beer, beverage, and general food processing where chlorides and harsh chemicals are not present. |
| SS316 (CF8M) | Contains 2-3% Molybdenum for superior resistance to pitting and chloride corrosion. | Pharmaceutical, cosmetic, and aggressive food processing (e.g., salty, acidic, or chlorinated CIP solutions). |
Hygienic Design Tip
Always specify SS316 if your CIP process uses chlorinated cleaning agents or if the valve will be exposed to saline products. The molybdenum content in SS316 prevents pitting corrosion, ensuring the mirror-polished surface remains intact and hygienic over the valve’s lifespan.
Manual Handle & Automatic Actuation Options
Flexibility in operation is key to efficient plant management. Our sanitary butterfly valves can be configured for precise manual control or fully automated operation.
Multi-Position Manual Handles
Unlike standard on/off valves, our sanitary handles offer precise flow modulation. Choose from 2-position, 3-position, or 4-position pulling handles, multi-position plastic handles, or premium stainless steel trigger handles. The notched handle locks securely into place, preventing accidental closure due to pipeline vibration.
Automatic Pneumatic Actuation
For automated process control, the manual handle can be replaced with a stainless steel or aluminum pneumatic actuator. A spring in the cylinder works axially, converting linear motion into a precise 90-degree rotation of the valve stem. This allows the butterfly valve to open or close automatically, with spring-return fail-safe options for critical safety loops.
Electric Actuation
For plants without instrument air, electric actuators provide reliable, remote-controlled operation via PLC/SCADA systems. Ideal for modulating flow or integrating into automated batching systems in food and beverage production.
Global Sanitary Standards Compliance
To ensure seamless integration with your existing hygienic piping infrastructure, KELOR sanitary welded butterfly valves are manufactured to meet the world’s most stringent sanitary standards:
- DIN 11851: German standard for dairy and food industry pipe connections.
- SMS 1145: Swedish standard widely used in dairy and beverage processing.
- RJT: British standard for hygienic pipe unions.
- ISO 2853: International standard for stainless steel pipe couplings.
- IDF: International Dairy Federation standard for hygienic fittings.
- 3-A Sanitary Standards: North American standard ensuring equipment can be effectively cleaned and sanitized for food, beverage, and pharmaceutical use.
Industry Applications
Dairy & Milk Processing
Raw milk intake, pasteurization lines, and cream separation. The smooth, welded interior prevents milk stone buildup and allows for rapid, thorough CIP cleaning.
Food & Beverage
Beer brewing, juice processing, and sauce manufacturing. SS316 valves resist the mild acids found in fruit juices and carbonated beverages without degrading.
Pharmaceutical & Biotech
Purified water (PW), water for injection (WFI), and active ingredient transfer. The crevice-free design meets strict GMP and FDA validation requirements.
Cosmetics & Personal Care
Lotion, shampoo, and cream production. Prevents cross-contamination between batches and withstands frequent hot-water sanitization cycles.
Technical Specifications
Table: Standard Operating Parameters| Parameter | Specification |
|---|---|
| Valve Type | Sanitary Manual Welded Butterfly Valve |
| Body & Disc Material | SS304 (1.4301) / SS316 (1.4404) / SS316L |
| Seat / Seal Material | EPDM / PTFE / Silicone (FDA / USP Class VI compliant) |
| Surface Finish | Internal: Mirror Polished Ra ≤ 0.8 μm | External: Matte or Polished |
| Size Range | DN10 (3/8″) to DN200 (8″) |
| Working Pressure | Up to 10 Bar (145 PSI) at ambient temperature |
| Working Temperature | -10°C to +120°C (depending on seat material) |
| End Connections | Butt Weld / Clamped (Tri-Clamp) / Threaded / Union-Nut / Flanged |
| Handle Options | 2/3/4-position pull, multi-position plastic, SS trigger handle |
| Actuator Options | Stainless steel pneumatic, aluminum pneumatic, electric |
Why Choose KELOR Sanitary Valves
True Hygienic Design
Every valve is meticulously polished to Ra ≤ 0.8 μm internally. We eliminate all crevices, ensuring zero bacterial harborage and full compliance with CIP/SIP protocols.
Material Traceability
We provide full Material Test Certificates (MTC) for all SS304 and SS316 components, guaranteeing the metallurgical integrity required for pharmaceutical and food safety audits.
Custom Configuration
Whether you need a DN15 SS316 valve with a 3-position trigger handle and PTFE seat, or a DN100 automated valve, we configure and assemble to your exact process requirements.
PAN India Dispatch
Headquartered in Ahmedabad, we supply sanitary valves to major food, dairy, and pharma hubs across India with rapid 3–7 day dispatch for standard configurations.
Commercial & Ordering Details
MOQ5 Nos per size per configuration
Lead Time3–7 days (Standard) / 10-15 days (Custom)
Emailsales@kelorvalves.com
GSTIN24AKLPP6499B1ZT
Ensure Product Purity with KELOR Sanitary Valves
Share your required size, material (SS304/SS316), connection type, and handle preference. Our engineering team will provide a compliant, competitive quotation within 2 hours.
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Frequently Asked Questions
1. What is a sanitary manual welded butterfly valve?
A sanitary manual welded butterfly valve is a hygienic flow control valve designed with butt-weld ends for permanent, leak-free integration into stainless steel piping systems. It features a polished SS304 or SS316 body, a crevice-free disc, and food-grade seals, making it ideal for dairy, food, beverage, and pharmaceutical applications where cleanability is critical.
2. What sanitary standards do your welded butterfly valves meet?
Our sanitary butterfly valves are manufactured to meet global hygienic standards including DIN 11851, SMS 1145, RJT, ISO 2853, IDF, and 3A sanitary standards, ensuring compatibility with international food and pharmaceutical processing equipment.
3. Can a manual sanitary butterfly valve be upgraded to automatic?
Yes. Many of our manual sanitary butterfly valves are designed with an ISO 5211 mounting pad. This allows you to easily remove the manual handle and install a pneumatic (aluminum or stainless steel) or electric actuator for automated, remote-controlled operation without replacing the valve body.
4. What is the maximum working temperature for these valves?
The standard working temperature range is -10°C to +120°C. However, the exact maximum temperature depends on the seat material chosen: EPDM is suitable up to 120°C, PTFE up to 150°C, and Silicone can withstand up to 150°C+ for high-temperature SIP applications.
5. What handle options are available for manual operation?
We offer a variety of hygienic handle options to suit your operational needs, including 2-position, 3-position, and 4-position pulling handles, multi-position plastic handles for corrosion resistance, and premium stainless steel trigger handles for precise, ergonomic flow modulation.
Engineered for Hygienic Excellence
Protect your product purity with certified, traceable, and meticulously polished sanitary valves.
- SS304 / SS316 Mirror Polished Body
- DIN / SMS / RJT / ISO / 3A Compliant
- FDA / USP Class VI Certified Seats
- Multi-Position or Automated Handles
- 3-7 Day Dispatch from Ahmedabad