Engineered for Scale, Safety & Zero-Defect Reliability
Our integrated Belagavi facility leverages robotic Submerged Arc Welding (SAW) and automated 100% hydro-testing rigs to maintain India’s premier production throughput.
Zero Failure Rate & BIS 2025 Award
Recognized by the Bureau of Indian Standards for maintaining flawless structural performance across four decades of continuous production.
BIS AWARD OF EXCELLENCE 2025Full-Spectrum In-House Heavy Engineering
From raw steel coil shearing to computerized stress relieving and monolithic mass baking, BTPS controls 100% of the manufacturing chain to eliminate third-party quality risks.
JSW Prime Steel Coil Procurement
Raw materials are sourced exclusively from JSW Steel under strict IS 6240 and IS 15914 specifications. 100% chemical and mechanical mill test certificates accompany every coil.
Automated Deep Drawing Pressing
High-tonnage hydraulic drawing presses form JSW steel blanks into seamless cylinder cups with exact wall thickness tolerances (4.0mm to 5.6mm).
Submerged Arc Welding (SAW)
Circumferential seams are joined using high-precision automated Submerged Arc Welding (SAW) to achieve zero-porosity, 100% radiographic quality structural joints.
Computerized Stress Relieving
Full thermal normalizing and stress relieving in computer-controlled batch furnaces eliminate residual mechanical stresses and restore steel grain ductility.
Monolithic Mass Baking (DA)
In-house formulation and curing of Monolithic Calcium Silicate mass, achieving 90%–92% porosity and ≥22 kgf/cm² crushing strength for Acetone stability.
100% Hydraulic & Pneumatic Test
Mandatory 100% volumetric expansion testing (up to 250 kgf/cm²) and pneumatic bubble leak testing under direct PESO inspector verification.
BIS-Certified High-Pressure Gas Containment
Precision-engineered pressure vessels designed for critical industrial gas distribution and eco-refrigerant HVAC applications.
Dissolved Acetylene (DA) Cylinders
Engineered with 90%–92% porosity monolithic calcium silicate porous mass saturated with acetone to safely stabilize acetylene gas at 16 kgf/cm² working pressure.
Refrigerant Gas (RG) Cylinders
Manufactured from micro-alloyed JSW IS 6240 / IS 15914 high-tensile steel, engineered for test pressures up to 70 kgf/cm² for eco-refrigerants.
High-Pressure Cylinder Series Parameter Matrix
| Technical Parameter | Dissolved Acetylene (IS 7312) | Refrigerant Gas Standard (IS 3196) | Refrigerant Gas High Test (HT) |
|---|---|---|---|
| Water Capacity Range | 17.2 Ltr & 41.0 Ltr | 5.6 Ltr, 11.2 Ltr, 25.0 Ltr, 68.0 Ltr | 13.6 Ltr, 55.4 Ltr, 68.0 Ltr |
| Raw Steel Specification | IS 6240 Prime Steel (JSW) | IS 6240 Prime Steel (JSW) | IS 15914 High-Test Steel (JSW) |
| Hydrostatic Test Pressure | 53 kgf/cm² (Welded) / 250 kgf/cm² (Seamless) | 45 to 50 kgf/cm² | 70 kgf/cm² |
| Max Working Pressure | 16.00 kgf/cm² | 27.88 to 33.33 kgf/cm² | 46.67 kgf/cm² |
| Special Internal Fill / Feature | Monolithic Calcium Silicate Mass (90–92% Porosity) | Standard Empty Containment Shell | High-Pressure Eco-Refrigerant Shell |
| Primary Gas Applications | Dissolved Acetylene (Industrial Cutting/Welding) | R-134a, R-22, R-404a, R-407c | R-410a, R-32, R-290 (Propane) |
Strict Statutory Testing & Certification Frameworks
BTPS operates with absolute regulatory rigor under continuous audits from statutory inspectors and international quality bodies.
BIS Certification Under IS 7312 & IS 3196
100% final inspection and test records are approved by Bureau of Indian Standards inspecting officers under active manufacturing licenses for IS: 7312 (DA Cylinders) and IS: 3196 Part 2 (RG Cylinders).
PESO / CCOE High Pressure Safety Clearance
Approved by the Chief Controller of Explosives (CCOE) / PESO, Government of India. Design drawings, shell thickness calculations, and high-pressure welding procedures are validated for up to 250 kgf/cm² test pressure.
TÜV SÜD ISO 9001:2015 Quality Management
Comprehensive TÜV SÜD audit verification (Certificate Registration No. 99 100 23469) confirming complete process traceability, calibrated measuring equipment, and continuous quality system control.
Serving High-Consequence Industrial Verticals
Industrial Metal Fabrication & Cutting
Providing heavy-duty IS 7312 DA cylinders with stable acetone-porous mass fill for shipyard cutting, structural fabrication, and high-temperature oxy-acetylene welding.
HVAC & Refrigeration OEMs
Supplying 70 kgf/cm² High Test (HT) cylinders to air conditioning manufacturers and refrigerant refilling plants for safe R-410a, R-32, and flammability-sensitive R-290 gas packaging.
Energy & Oil PSUs
Leveraging 40+ years of high-volume manufacturing history to support national energy distributors, having supplied over 5 Million LPG cylinders to Indian Oil majors (IOCL, BPCL, HPCL).
Backed by Patson Group’s Four Decades of Industrial Leadership
BTP Structural India Private Limited (BTPS) was established in 1982 in Belagavi (Belgaum), Karnataka, by Visionary Founder Late Shri B.T. Patil alongside Late Shri Bapusaheb B. Patil, Late Shri Balasaheb B. Patil, and Late Shri Jayant B. Patil.
Today, under executive leadership of Mr. Sachin B. Patil and Mr. Tushar B. Patil, BTPS operates as a flagship arm of the Patson Group (diversified across Infrastructure, Foundry, IT, and Heavy Manufacturing).
Read Full Corporate Legacy →Corporate Mottos & Values
- “Safety First Since 1982” — Non-negotiable testing discipline.
- “Trusted Name Since 1982” — Unbroken compliance across 40+ years.
- “Fuelling the Revolution, Transforming Your Energy Needs” — Supporting national gas distribution scale.
Trusted by Industry Leaders
See what procurement heads and quality leads are saying about our zero-defect commitment.
“BTPS DA cylinders have consistently passed our stringent porosity tests. Their compliance with IS 7312 gives us complete peace of mind for our industrial gas filling operations.”
“The zero-defect guarantee on BTPS refrigerant cylinders is exactly what our HVAC OEM division needs. Excellent weld quality and batch-to-batch consistency.”
“Handling bulk B2B orders with BTPS is seamless. Their technical team customized valve specifications for our entire fleet without delaying delivery timelines.”
Technical Insights & Gas Containment Guidelines
Understanding IS 7312 Compliance for DA Cylinders
A comprehensive guide to monolithic calcium silicate porous mass, acetone saturation, safety space, and mandatory inspection parameters under IS 7312.
HT Series Hydrostatic Pressure Ratings & Steel Selection
How high-strength micro-alloyed IS 15914 steel enables 70 kgf/cm² hydrostatic testing for R-410a, R-32, and flammability-sensitive R-290 refrigerants.
Safe Handling & Testing Standards for R-290 Cylinders
A procurement-focused overview of cylinder selection, valve compatibility, storage controls, and applicable site safety procedures for A3-class gases.