Sanitary Weld Butterfly Valve

These valves are widely applied in biopharmaceuticals, dairy products, high-end food and beverage industries and other fields with stringent pipeline sealing and hygiene demands. As a trusted manufacturer with mature production lines, DIYE VALVE ensures consistent quality for global customers. With standardized production and strict quality control, our sanitary weld butterfly valves serve clients worldwide as a reliable factory dedicated to hygienic fluid control solutions.

Product Introduction

1. Welded Structure for Sterile Hygiene

Both ends of the valve body of Sanitary Weld Butterfly Valves adopt a butt weld bevel design and are fully welded to hygienic pipelines, eliminating gaps and grooves associated with clamp/ flange connections. This fundamentally prevents medium residue and bacterial growth, meeting the stringent hygiene requirements of sterile pipelines.

2. Precision Polished Flow Channel

The internal flow channel of the valve body is precision mirror-polished, with a standard finish of Ra≤0.8μm; a custom finish of Ra≤0.4μm is available for high-end sterile working conditions. It features low fluid flow resistance, easy cleaning with no residue, and is fully compatible with CIP/SIP processes.

3. Food-Grade & Certified Material Selection

The valve body and disc in contact with media are made of food-grade 304/316L stainless steel. The 316L grade features an ultra-low carbon composition to prevent intergranular corrosion. Seals are selected from FDA/3A certified EPDM/silicone rubber/fluororubber, with no harmful substance leaching, ensuring fluid purity.

4. Robust Welded Integral Structure

Sanitary Weld Butterfly Valves feature a one-piece welded structure with high strength and excellent resistance to pipeline vibration and media impact. They routinely withstand a pressure rating of PN10/PN16, suitable for high-pressure fluid transfer and continuous assembly lines with high equipment vibration, ensuring no loosening or leakage during long-term operation.

About us

1. Multilingual Professional Foreign Trade Support

Our foreign trade team is proficient in multiple languages including English, Russian and Arabic. We can respond rapidly to inquiries from overseas customers, provide multilingual product documents, technical parameter sheets and quotations, accurately interpret customer requirements, and support negotiations for small minimum orders and customized orders.

2. Comprehensive After-Sales Warranty & Spare Parts Service

All exported Sanitary Weld Butterfly Valves come with a 12-month warranty (starting from the date of shipment). For quality issues caused by non-human operation and improper working conditions within the warranty period, free maintenance or replacement of spare parts is provided. Meanwhile, we supply commonly used spare parts such as seals and bolts for overseas customers as complementary accessories, reducing overseas maintenance costs and downtime losses.

Technical Parameters

FAQ

Q: How can overseas customers confirm that the Sanitary Weld Butterfly Valves matches the dimensions of their existing pipeline?

A: DIYE provides detailed bilingual (Chinese-English) dimension parameter tables, clearly indicating key dimensions such as Nominal Diameter (DN), Outer Diameter (OD), welding bevel angle, valve body length, and flange standard. The product complies with international general standards including 3A, ASME, and DIN. Meanwhile, we can customize the valve body dimensions according to the pipeline drawings provided by customers, conduct pre-dimension verification and simulated installation to ensure direct butt welding upon delivery, avoiding dimensional deviation issues.

Q: Sanitary Weld Butterfly Valves are fixed connections and cannot be disassembled. How to perform daily maintenance and replace seals?

A: Daily maintenance can be completed through CIP (Clean-in-Place) online cleaning without disassembling the valve body. It is only necessary to regularly check the stem tightness and operational flexibility. If leakage occurs due to aging or damage of the seal, first close the upstream and downstream pipeline valves, empty the medium, disassemble the stem end cover to directly take out the old seal, and replace it with food-grade seals (EPDM/Silicone/FKM) certified by FDA/3A of the same specification. No pipeline cutting is required, which significantly reduces maintenance costs and downtime losses.