Valex Hi-Purity Stainless Steel Tubes for Semiconductor Clean Rooms in India

MAHADEV DAIRY PHARMA FITTING is a specialized supplier of Valex Hi-Purity Stainless Steel Tubes engineered for semiconductor clean room environments and ultra-high purity (UHP) process systems in India. Our tubing solutions are designed to deliver absolute cleanliness, chemical integrity, and long-term reliability in the most critical semiconductor manufacturing applications.

We support fab facilities, EPC contractors, OEM tool manufacturers, and clean room integrators with world-class hi-purity tubing that meets global semiconductor standards.

Hi-Purity Tubes – Engineered for Semiconductor Excellence

Our Valex-equivalent Hi-Purity Tubes are manufactured using advanced metallurgical control and precision finishing technologies to eliminate contamination, corrosion, and particle generation.

These tubes are specifically developed for:

•Ultra-clean gas delivery

•Ultrapure water (UPW) systems

•High-purity chemical transfer

•Critical clean utilities

Every tube is processed, cleaned, and packed under controlled conditions to ensure readiness for clean room installation.

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Material Grades & Metallurgical Integrity

We supply hi-purity tubes in carefully controlled material grades to ensure process stability and chemical compatibility.

Available Grades:

•Stainless Steel 316L

•Stainless Steel 316L VAR (Vacuum Arc Remelted)

Key Advantages:

•Extremely low sulfur content

•Uniform grain structure

•Superior corrosion resistance

•Minimal ion leaching

•Excellent weldability for orbital welding

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Surface Finish & Cleanliness Control

Surface finish is the most critical parameter in semiconductor tubing.

Our hi-purity tubes are available with industry-leading internal surface finishes.

Finish Options:

•Electropolished (EP) – Ultra-smooth, particle-free surface

•Bright Annealed (BA) – High cleanliness with enhanced corrosion resistance

Surface Roughness:

•Ra ≤ 0.25 μm (10 μin)

•Available lower Ra on request for advanced fabs

Each tube undergoes:

•Degreasing & chemical cleaning

•Passivation

•High-purity DI water flushing

•Nitrogen purging

•End capping & sealed packaging

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Size Range – Hi-Purity Tube Dimensions

We offer a complete size range to support all semiconductor utility and tool hook-up requirements.

Outer Diameter (OD):

•6 mm to 114.3 mm

•1/4” to 4”

Wall Thickness:

•0.5 mm to 3.05 mm

•SCH 5S / SCH 10S (as applicable)

Form:

•Straight lengths

•Custom cut lengths

•Coil form (select sizes)

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Manufacturing & Quality Standards

Our hi-purity tubes are manufactured and tested in compliance with global semiconductor and clean room standards.

Standards & Compliance:

•ASTM A269 / A270

•ASME BPE

•SEMI Standards

•ISO Clean Room Compatibility

Quality Tests Include:

•Eddy Current Testing

•Hydrostatic / Pneumatic Testing

•PMI (Positive Material Identification)

•Dimensional & Surface Inspection

•Roughness Measurement (Ra Report)

Full Material Test Certificates (MTC) and traceability documentation are provided with every supply.

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Semiconductor Clean Room Applications

Our Valex Hi-Purity Tubes are extensively used in:

•Semiconductor fabrication plants (Fabs)

•Wafer processing facilities

•Gas distribution manifolds

•UPW generation & distribution systems

•Chemical delivery systems (CDA, acids, solvents)

•Tool hook-ups inside clean rooms

•Microelectronics & advanced packaging units

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Advantages for Indian Semiconductor Projects

With India emerging as a global semiconductor hub, MAHADEV DAIRY PHARMA FITTING ensures reliable domestic availability of hi-purity tubes without compromising on global quality.

Our Strengths:

•Valex-equivalent international quality

•Consistent batch-to-batch purity

•Faster lead times across India

•Competitive pricing for large projects

•Technical support for EPC & OEM teams

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Why MAHADEV DAIRY PHARMA FITTING?

•Dedicated focus on Hi-Purity Tubes only

•Deep understanding of semiconductor processes

•Clean room–ready tubing solutions

•Trusted partner for critical applications