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Flexible solutions:
Replaceable tank bladders for pressure tanks, expansion vessels or water hammer arrestors

Titan Industrial is highly specialized in the manufacture of tailor-made replaceable tank bladders for expansion tanks, pressure vessels, and water hammer arrestors.

We have a flexible approach to our customers requirements and produce the bladders in all shapes and sizes. With vast experience in special dimensions, upto 100.000 litres and more.

We use polyurethane (ether) film in thickness of 1 mm, which allows easy handling in installation and low transport costs due to its light weight (around 30% of a others bladders), with highest quality and durability.

Alternatively we are also manufacturing butyl bladders, so our clients can decide between the two technical materials as per their customers requirements.

The bladders are suitable for potable water systems, waste water, irrigation and other installations.

The bladders comply with the consumer goods laws of the European Union and the U.S.A. and are approved for contact with potable water and foodstuffs.

Applications for our replacement bladders: Shaping our customers demands

Exchangable bladders for surge vessels, expansion tanks, water hammer arrestors for water and heating systems:

  • Potable Water Facilities
  • Sewage Water Systems
  • Hot Water Installations
  • Heating Systems
  • Industrial Water Systems
  • Desalination Plants
  • Water Treatment Plants
  • Water Pressure Systems
  • Fire Protection Systems

Special dimensions, upto 100.000 l. and more

Technical information for ours TPU (polyurethane) and butyl bladders: Compliance with consumer goods law

The bladders for pressure and expansion tanks are made from a thermoplastic polyurethane film or butyl film. In accordance with the information given by the film suppliers, the materials specified for manufacturing this film meet the following requirements:


  • Regulation (EC) No 1935/2004 of the European Parliament and the Council of 27.10.2004 on materials and articles intended to come into contact with food, and Commission Directive 2007/72/EC of 6.8.2002 relating to plastic materials and articles intended to come into contact with foodstuffs with its latest amendment 2005/79/EC dated 19.11.2005.
  • Regulations as per United States Food and Drug Admi- nistration 21 CFR 177.2600 (U.S. Code of Federal Regulations).
  • U.K. Water Regulations Advisory Scheme (WRAS) approval as per BS 6920 1:2000.
  • Attestation de Conformité Sanitaire (ACS).
  • Australian potable water certificate AS4020.


  • U.K. Water Regulations Advisory Scheme (WRAS) approval as per BS 6920 1:2000.

Different phases of bladder inside an expansion vessel.

Polyurethane bladders

Density Calculated g/cm3 1,15
Softening range TMA Onset – Endset internal method ºC 155 – 185
Hardness DIN 53505 Shore A 87
Tensile street at break DIN EN ISO 527 MPa 60
Tensile street at 50% strain DIN EN ISO 527 MPa 5 – 7
Tensile street at break DIN EN ISO 527 % 550
Tear propagation resistance DIN ISO 34 – 1,B kN/m 50
UV-stability Empirical X
Hydrolysis resistance Empirical XX
Microbial resistance Empirical X
Weldability Empirical XX
Thermoformability Empirical XX

Butyl bladders

Density Calculated g/cm3 1,11
Hardness ISO 48 ºIRH 71
Tensile strain at break ISO 37 MPa 9,8
Tensile strain at break ISO 37 % 510
Tear propagation resistence ISO 34 kN/m 27
Foldability al low temperature EN 495-5 ºC 40

Contact us for more information about tank bladders

Replaceable tank bladders photo gallery

Since 1968 manufacturing flexible tanks around the world

Founded in 1968, the core business of Titan Industrial was the manufacture of flexible tanks for liquids storage, conduction and transport.

Nowadays the company specializes in manufacturing a wide range of industrial products and components based on flexible polymer foils and technical coated fabrics of PVC, polyurethane, neoprene, nitrile and other specific materials.

We have an excellent team of skillful professionals with extensive experience and qualifications. We have agreements with the best suppliers in the market for our prime materials, both national and international.

The fabrics and films employed in our different products are technically and specifically selected for each application. The coatings of the fabrics are also designed in accordance with the employment demands of the finished product.

We employ advanced technology which allows us to manufacture our products with the highest quality at competitive prices. Welding is performed with High Frequency Technology, increasing the welding resistance.

With specific machinery for the different processes involved together with the experience and excellent skills of our personnel, we achieve exceptional finishings of our products, meeting the highest quality standards required.

For more information about the company visit our web Titan Industrial (spanish version).