AUDCO INDIA LIMITED (AIL) is a leading valve manufacturer, with a strong presence in India and overseas. AIL has three manufacturing facilities located in Southern India. The main plant is located in Manapakkam, Chennai. The two other plants are at Maraimalai Nagar, 40 kilometres south and at Kancheepuram, 70 kilometres west of the main plant. The plants are equipped with modern manufacturing facilities with special-purpose machines, automatic welding equipment, heat treatment furnaces and testing equipment for total control of all manufacturing operations. In-house metallurgical and NDE laboratories, and calibration facilities with modern equipment provide support to ensure the quality of products manufactured. AIL manufactures a wide variety of industrial valves. The Quality Management System in all three plants is cer tified to ISO 9001:2000 System.

AIL Forged Steel Gate, Globe and Check Valves have established themselves the world over for their quality, reliability and long service. Rugged and compact in design, these valves are manufactured to the latest international designs using advanced manufacturing techniques and stringent quality control checks. The valves are regularly supplied to major Indian and international clients including oil refining companies and EPC contractors. They are available in a range of sizes starting from 1/4” to 2” (in reduced-bore design) and from 3/8” to 11/2” (in full-bore design).

AIL Cast Steel Gate, Globe and Check Valves have established themselves the world over for their quality, reliability and long service. The valves are manufactured to the latest international designs, using advanced manufacturing techniques and stringent quality control checks. The valves are regularly supplied to major Indian and international clients including oil refining companies and EPC contractors. A wide network of distributors ensures the availability of AIL valves anywhere in the world.

AIL Gate, Globe & Check Valves
Bolted Bonnet / Cover design
The API 600 / BS 1873 / BS 1868 family of AIL Gate, Globe and Swing Check Valves is exceptionally sturdy, rugged and durable, with a reputation for quality, integrity and long service. They are designed for tight sealing and ease of operation. The valves are available with flanged ends or butt-weld ends, in pressure ratings from ASME Class 150 to Class 1500, and in a variety of materials of construction. Gate Valves are of flexible wedge, outside screwand-yoke and bolted-bonnet construction. The valves conform to API 600. Globe Valves feature a ball-type disc, outside screwand-yoke and bolted-bonnet construction. They conform to BS 1873 and also meet the general requirements of API 600, including shell wall thickness and stuffing box dimensions. Check Valves are of swing-type and bolted-cover construction. They conform to BS 1868 and also meet the general requirements of API 600, including shell wall thickness.

API 603 AIL Stainless Steel Gate Valves
Bolted Bonnet design
The API 603 family of AIL Stainless Steel Gate Valves is an economic alternative to API 600 Stainless Steel Gate Valves. They are available in flanged construction and in pressure ratings of ASME Class 150 and Class 300. Gate Valves are of flexible wedge,outside screw-andyoke and bolted-bonnet construction.

ASME B16.34 AIL Gate, Y-Globe & Swing Check Valves
Pressure Seal Bonnet design
The ASME B16.34 family of AIL Gate, Y-Globe and Swing Check Valves features a pressure seal bonnet design for high pressure services. These valves are extensively used in high pressure and high temperature steam, oil, gas, chemical and water applications in thermal power plants, fertilizer plants, petrochemical plants and refineries. The valves are available with butt-weld ends in pressure ratings of Classes 900, 1500 and 2500, and come in carbon steel and alloy steel construction. Gate valves also meet the requirements of API 600 Style A.

AIL Cryogenic Gate & Globe Valves
Services that handle fluids at sub-zero temperatures present several technical challenges. AIL’s specially-adopted, extended-bonnet gate and globe valves provide the right solution for such low-temperature and cryogenic services. AIL offers a range of gate and globe valves (as well as check valves) for low temperature and cryogenic services, used in processing, storage and transportation of liquefied gases such as Ethylene, LPG, LNG, Hydrogen, Helium, Oxygen, Nitrogen and Argon. Low temperature services of up to -460C are covered by low-temperature carbon steels like LCB and LCC materials. Cryogenic services at -1960C are covered by stainless steel grades like CF8M and CF8. AIL Cryogenic Gate and Globe Valves are available in ASME Class 150, Class 300 and Class 600 ratings. Refer page 3 for detailed manufacturing programme.

ADVANTAGES
Proven track record of performance and reliability
Experience over four decades of manufacturing valves.
Investment in modern manufacturing technology

Integrated manufacturer-supplier
Complete control over all critical processes including raw materials
Preferred by reputed Oil majors and EPC contractors

Design and Engineering capability
Highly skilled engineers for designing products with optimal performance
Ability to design products with special requirements
Customized product development – working closely with the user groups

Quality Assurance Program
Certified by international inspection agencies and also end users
Valve performance exceeds many international standards

Variety of products and Wide range
Carbon steel to stainless steel with sizes up to 64”
Gate, Globe and Check valves both in bolted and pressure
seal construction including Cryogenic

Design Aspects
Gate Valves

• Trim selection
• Types of wedges or discs
• Guide ribs and slots in body and disc
• Shell Wall Thickness
• Wear Travel Allowance
• Retaining Strip / Tab to Weld martensitic trim material
• Stem to Wedge Connection
• Fugitive Emission Control

Quality Issues
Gate Valves

• Foundry Sourcing
• Audit Radiography
• ISO / API / TUV Accreditation
• Zero Leakage Criterion
• Hydrostatic Test Duration
• NDT - MPI, DP & Radiography
• Tractability - 3.1B & 2.2 Certification
• Calibration requirements
• PMI for Alloy Steel valves

Quality Management Systems

• ISO 9001:2000
• API Spec Q1

Product Certifications

• API 6D
• CE Marking
• ATEX Certification