Fabric Expansion Joints

Insaplex, a renowned manufacturer, has established itself as a leading supplier of hoses, hose assemblies, fabric expansion joints, metal inserted rubber gaskets, and PTFE gaskets in India for over three decades. Their commitment to excellence and customer satisfaction has also positioned them as a prominent international provider of stainless steel hose fittings and adaptors, serving numerous assemblers.

As a valued member of the diversified industrial group – IGP, Insaplex benefits from the extensive knowledge and experience accumulated by the group over six decades of serving the core industry. With a revenue exceeding INR 6000 million, the IGP group is widely recognized for its steadfast dedication to delivering exceptional solutions.

Insaplexplaces a strong emphasis on quality, reliability, and adherence to international standards. Their products undergo stringent testing processes to ensure they meet the highest industry benchmarks. From hoses and hose assemblies to fabric expansion joints and gaskets, every component is engineered to surpass expectations and contribute to the success of various applications.

With state-of-the-art manufacturing facilities, advanced technologies, and a skilled workforce, Insaplex is well-equipped to handle projects of any size. Their commitment to continuous improvement drives them to embrace innovation and remain at the forefront of the industry, offering cutting-edge solutions that cater to evolving market demands.

Clients can confidently choose Insaplex as their trusted partner for all their hose, gasket, and expansion joint needs. They can expect unmatched quality, reliability, and customer service that have made Insaplex the preferred choice for customers not only in India but also across the globe.

Metallic Flexible Hoses

INSAPLEX is a subsidiary of IGP, a diversified industrial group with over six decades of experience in serving the core industry. The group generates a revenue exceeding INR 6000 million.

INSAPLEX specializes in the manufacturing of high-quality SS (Stainless Steel) high flexible corrugated hoses and various types of fitting assemblies. Their product range includes inconel hoses, phosphor bronze braided hoses for special applications, and hoses made of different materials such as SS 321, SS 304, SS 316, 316L, and INC 625. The fittings are available in materials such as All Stainless Steel, CS (Carbon Steel), MS (Mild Steel), and various alloy metals. INSAPLEX stocks a wide range of over 5000 different sizes and configurations, catering to diverse customer requirements.

The company ensures superior quality standards and compliance with international regulations for all their hose assemblies and fittings. They manufacture Alloy Steel Braided Hoses ranging from 12mm (1/2″) to 300mm (12″) in diameter.

Manufacturing tolerances for INSAPLEX products are as follows: Up to DN 40 has an ID (Inner Diameter) and OD (Outer Diameter) tolerance of ±1min, DN 100 has a tolerance of ±1.5mm, and DN 125 to DN 300 has a tolerance of ±2mm. The test pressure is calculated as 1.5 times the maximum operating pressure under normal conditions, while the burst pressure is determined as 4 times the maximum operating pressure under normal conditions. The elongation at the test pressure must be less than 3% of the initial length, and after pressure release, the elongation should be less than 1% of the initial length. For temperature coefficients, reference is made to the chart specified in BS 6501 PART 1:1991.

INSAPLEX’s products find applications in various industries such as Fertilizer, Refineries, Petrochemicals, and Chemicals and Pharmaceuticals.

Fabric Expansion Joints

INSAPLEX specializes in the manufacturing of fabric expansion joints, which are designed for use in various applications such as Flue Gas Ducts, Process Gas systems, and other environments requiring accommodation of movements at medium to high temperatures. These expansion joints are constructed using different types of raw materials to meet the specific requirements of customers.

INSAPLEX’s fabric expansion joints, also known as FE joints, are durable and highly flexible. They are made by layering synthetic cloth and incorporating a pressure membrane of reinforced PTFE. These expansion joints offer a cost-effective solution, particularly in low-pressure applications up to 14.7 P.S.I.G.

The materials used in manufacturing these bellows include Glass fabric (Neoprene Coated, EPDM Coated, Silicon Coated), PTFE, Mineral wool, Ceramic fabric, and SS (Stainless Steel) Wire cloth.

Key features of INSAPLEX’s fabric expansion joints include a proven design and construction suitable for continuous high-temperature environments, even reaching up to 1000°C. They are available in sizes as large as 6000mm in diameter for circular joints, and any transportable size can be achieved for rectangular assemblies.

INSAPLEX has extensive expertise in developing and supplying fabric expansion joints for various industries, including Power stations, Refineries, Petrochemical plants, Iron & Steel facilities, and Chemical and Cement plants. The company is accredited with ISO 9001:2008 certification and has ample resources to cater to emergency supply requirements.


INSAPLEX,橡胶垫片的主要制造商with metal inserts, is proud to offer a wide range of products for different applications. In the drinking water sector, they specialize in producing gaskets suitable for both cold and warm water environments. These gaskets are available in sizes ranging from 15NB to 2000NB. INSAPLEX utilizes NBR (Nitrile Butadiene Rubber) compound, recommended by KTW, for gaskets used in cold water applications. For warm water applications, they offer gaskets made from EPDM (Ethylene Propylene Diene Monomer) compound, which meets the standards set by the German Federal Health Office and WRAS (Water Regulations Advisory Scheme) in the UK. These gaskets are certified and suitable for contact with wholesome water intended for human consumption.

在气体应用领域,INSAPLEX提供elastomer sealants designed for gas supply mains and pipelines. Their NBR rubber compound meets the test requirements of DIN EN 682, ensuring reliable and secure sealing in gas systems.

INSAPLEX has the capability to manufacture gaskets to fit various flange standards such as ANSI, AWWA, and DIN. They offer gaskets with metal inserts made from both carbon steel (CS) and stainless steel (SS). The materials used for the rubber component include Natural Rubber, Neoprene Rubber, Hypalon (CSM) Rubber, Butyl Rubber, regular FKM (Fluorocarbon) Rubber, and FKM GSF (General Service Fluoroelastomer) quality.

用一个内部测试设施配备广告vanced instruments such as Rheon meter, tensile tester, oven, hardness testers, and measuring instruments, INSAPLEX ensures stringent quality control and compliance with industry standards. Their experienced personnel in manufacturing and testing guarantee the production of reliable and high-performance gaskets.

Interlocked HosesFabric Expansion Joints

Interlocked metal hose, also known as strip wound hose, is a type of hose consisting of profiled strips that are interlocked at their edges.

These hoses are often referred to as strip wound hoses due to their construction, which involves successive forms of profiled strips with interlocking edges.

To ensure pressure tightness, interlock hoses are made with a packing material. This packing can be made of various materials such as cotton, asbestos, rubber, or metals like copper. The packing is inserted into the interlock structure, enhancing the hose’s ability to withstand pressure.

Interlocked metal hoses serve multiple purposes, primarily as protective conduit casings. They can also be used as liners inside hoses, depending on the specific profile formation.

There are different locking methods employed in interlocked metal hoses, including square lock, square lock with packing, double lock, and double lock with packing.

These hoses find application in various industries, such as:

  1. Telephone and Electrical cables
  2. Control instruments and Thermocouples
  3. Conveying non-penetrating fluids like naphtha and furnace oil.

PTFE GasketsFabric Expansion Joints

The PTFE, PEEK, and other fluoropolymer specialists possess unmatched experience in dealing with engineering plastics. They offer a range of standard grades of PTFE and VICTREX PEEK, as well as collaborate with clients to develop custom materials to meet specific requirements. With expertise in machining intricate parts, they manufacture high-performance electrified seals, PTFE slide bearings, skidway systems, and rods and tubes of various diameters.

Their coating solutions cater to diverse applications such as bakeware equipment, stud bolt coatings, release coatings, and glass coatings. The specialists’ PTFE molding facility houses advanced molding presses and sintering ovens, enabling the production of precisely engineered components. Their coatings division provides durable and chemically inert finishes. With a focus on innovation, their engineering and design services offer tailored solutions to clients worldwide, ensuring optimal material selection and product design. In the science and medical sector, they have a strong track record in designing and producing PTFE and PEEK components and coatings, catering to various needs from scientific glassware to coated dental equipment.

Why is PTFE considered a favorable choice?

PTFE stands out as an excellent choice for various applications due to its exceptional qualities. This versatile substance offers affordability, stability, and durability, making it highly desirable across different industries. PTFE finds utility in numerous sectors, including medical devices, food packaging, industrial equipment, automotive parts, electrical insulation, and fluid seals. Its strength lies in the robust carbon-fluorine bond, which grants remarkable flexibility and chemical resistance. Notably, PTFE possesses the lowest coefficient of friction among solids, ensuring reduced friction in applicable scenarios. Furthermore, PTFE exhibits weather resistance, water resistance, and remarkable heat and electrical conductivity. These outstanding characteristics collectively contribute to PTFE’s widespread use and make it an optimal choice for diverse applications.

The company excels in manufacturing PTFE plastic parts and offers a range of specialized products:

  1. High-Performance Seals:
    • Plastic, rubber, and elastomer seals in PTFE, VICTREX PEEK, PU, NBR, and POM.
    • Custom material development to meet specific requirements.
  2. Backup Rings:
    • Wide range of PTFE backup rings (BURs) designed and manufactured to various specifications.
  3. Drag Bearings:
    • Reinforced PTFE material (AF115) specifically developed for slide bearing and skidway applications.
    • Unique blend of filler chemicals for maximum compressive strength.
  4. Vessel Seats:
    • Valve seats produced using AF materials, including PTFE and VICTREX PEEK.
  5. Rods & Tubes:
    • Selection of tubes and rods available, including Virgin PTFE and filled PTFE with glass and carbon.

With their state-of-the-art equipment and experienced technicians, the company is well-equipped to manufacture a diverse range of PTFE plastic parts to meet various project requirements.

Types of Polymers

  • PFA
  • FEP

No. #79 (Old #29/9) Valmiki Street, Thiruvanmiyur,
Chennai – 600 041.

No.9 & 10, Self Help Industrial Estate, Keelkattalai, Chennai – 600 117.

+91 44 2443 0697, 2443 0705, 2490 1623, 2441 3348
+91 44 2442 1591, 2440 5152, 2442 5511

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