SMS-14 Welding Liner

Key Features

• SMS Standard Compliance – Manufactured to SMS 1147 specifications, ensuring compatibility with SMS union systems including SMS 1146 (male part), SMS 1148 (nut), and SMS 1149 (gasket)

• Welding Connection – Designed for orbital or manual TIG welding to tubing, creating a permanent, crevice-free joint

• Hygienic Crevice-Free Design – Smooth internal bore with no dead zones, minimizing bacterial growth and ensuring sanitary integrity

• High Corrosion Resistance – Available in 304 and 316L stainless steel, offering excellent resistance to process media and cleaning agents

• Surface Finish – Interior surface roughness Ra ≤ 0.8 μm, meeting hygienic standards for food and pharmaceutical applications-

• Wide Size Range – Available from 1" to 4" tube OD, with larger sizes available upon request-

• CIP/SIP Compatible – Designed to support Clean-In-Place and Sterilize-In-Place procedures-

Key Advantages

• Permanent, Hygienic Joint – Welded connection provides a leak-proof, crevice-free seal that meets 3A sanitary standards for dairy and food processing equipment

• Superior Cleanability – Crevice-free design supports CIP and SIP procedures without disassembly-

• System Integrity – As part of the SMS union assembly, the liner ensures a secure, leak-free connection between pipes where hygiene is critical-

• Long Service Life – Stainless steel construction ensures exceptional durability under high-temperature and high-pressure conditions

• Versatile Applications – Suitable for food processing, dairy production, beverage manufacturing, pharmaceutical, biotech, and cosmetics industries

• Full Traceability – Each fitting comes with material test reports and full traceability to ensure quality compliance

• Temperature Range – Operating temperature from -40°F to 250°F (-40°C to 121°C)

How It Works

The SMS-14 Welding Liner functions as a critical component within an SMS sanitary union system-:

1. Welding – The liner is welded to the end of a tube or pipe using orbital or manual TIG welding, creating a permanent, homogenous joint

2. Union Assembly – The welded liner is combined with an SMS male part (SMS 1146), an SMS nut (SMS 1148), and an L-shaped gasket (SMS 1149) to form a complete union connection

3. Sealing – The L-shaped gasket is compressed between the liner and the male part when the nut is tightened, creating a hygienic, crevice-free seal-

4. Flow – The smooth internal bore of the liner allows product flow to pass through with minimal turbulence and no entrapment points

5. Maintenance – The union design allows for easy disassembly by loosening the nut, enabling rapid cleaning, inspection, or line changes

This design provides a permanent welded connection to the tubing with the flexibility of a union for maintenance access.

Why Choose Us

• Certified Quality – All our SMS-14 Welding Liners are 3A Sanitary Standards certified, meeting the highest industry requirements for dairy and food processing equipment-3. We also hold CE certification and ISO 9001 quality management system certification, ensuring consistent product excellence

• Premium Materials – We use only high-grade 304 and 316L stainless steel, offering exceptional corrosion resistance, weldability, and longevity-

• Precision Manufacturing – Every liner is machined to tight tolerances with smooth surface finishes (Ra ≤ 0.8 μm) to meet hygienic standards-

• Stringent Quality Control – Each fitting undergoes dimensional inspection, surface finish testing, and material verification to ensure 100% compliance

• Extensive Size Range – From 1" to 4" tube OD, with custom sizes available upon request-

• SMS Standard Expertise – We specialize in SMS 1145/1147 compliant fittings, ensuring full compatibility with your existing SMS union systems-

• Full Traceability – Every fitting is supplied with material test reports and traceable documentation for audit compliance

• Competitive Pricing – Direct manufacturing capabilities allow us to offer factory-direct pricing without compromising quality

• Expert Support – Our team of sanitary fitting specialists provides technical guidance on welding procedures, material selection, and system integration

• Reliable Supply Chain – Consistent inventory and fast shipping ensure your projects stay on schedule

FAQ

Q: What does "SMS-14" refer to?
A: "SMS" stands for Swedish Manufacturing Standard, a hygienic fitting standard widely used in the European food and dairy industries-. "SMS-14" is the industry designation for the welding liner component of the SMS union system (SMS 1147)-.

Q: What materials are available?
A: Our SMS-14 Welding Liners are available in 304 stainless steel and 316L stainless steel. 316L offers enhanced corrosion resistance for more demanding applications.

Q: What certifications do your products have?
A: Our fittings are 3A Sanitary Standards certified, CE certified, and manufactured under an ISO 9001 certified quality management system. Material test reports are supplied with each order.

Q: What industries use this fitting?
A: The SMS-14 Welding Liner is widely used in food and beverage processing, dairy production, pharmaceutical manufacturing, biotechnology, cosmetics, and chemical processing industries-.

Q: What sizes are available?
A: We offer sizes from 1" to 4" tube OD, including 1", 1-1/2", 2", 2-1/2", 3", and 4". Larger sizes are available upon request.

Q: What is the surface finish?
A: Our standard surface finish is Ra ≤ 0.8 μm to meet hygienic requirements-. Special finishes are available upon request.