Our company will provide you with full support from the moment of production to the requalification of the cylinders. We will train your staff in the safe and quality service of composite cylinders. We will carry out a technical examination and practically help to solve the problems you are facing.

HPC Research strictly follows internationally recognised standards and regulations. All LPG cylinders leaving factory are properly tested and check for conformity to the mentioned standards by certified quality engineers of in-house inspection service.

HPC Research is certified and continuously supervised by TUV SUD Czech notified body. In-house inspection service undergoes regular audits from the notified body.

Instructions & Technical Information

In this section you can find basic technical instructions and technical specifications of our products. In case you need more information don't hesitate to contact us.

Q0020 LPGC24G1 User manual, English

LPGC24G1 (GEN.1 cylinders including Multivalve) User manual, English


Q0067 COMPANION G.2 User manual, English

COMPANION G.2 User manual, English


Q0020 LPGC24G1 User manual, Czech

LPGC24G1 (GEN.1 cylinders including Multivalve) User manual, Czech


Q0067 COMPANION G.2 User manual, Czech

COMPANION G.2 User manual, Czech


Q0020 LPGC24G1 User manual, Russian

LPGC24G1 (GEN.1 cylinders including Multivalve) User manual, Russian


Q0067 COMPANION G.2 User manual, Russian

COMPANION G.2 User manual, Russian


Q0020 LPGC24G1 User manual, Italian

LPGC24G1 (GEN.1 cylinders including Multivalve) User manual, Italian


Q0067 COMPANION G.2 User manual, Italian

COMPANION G.2 User manual, Italian


Product Presentation, English

Product Presentation, English


Product Presentation, Russian

Product Presentation, Russian




Design of cylinders is certified according to the following standards and regulations:  ISO 11119-3, EN 14427, EN 11245, IS 70, PED and ADR.


Which type of cylinders exists in the market?

In general cylinders are classified by design, working pressure and content. By design cylinders are split into 5 types:

  • Type I – all metal cylinders. Most of such cylinders are made of steel or aluminium.
  • Type II – hoop wrapped metallic cylinder with fibre reinforcement of cylindrical part of a cylinder.  Such cylinders have slightly lower weigh than Type I cylinders.
  • Type III – fully-wrapped composite cylinder with metal load-sharing liner. Both liner and composite shell share stress created by internal pressure.
  • Type IV - fully-wrapped composite cylinder with metal or non-metal non load-sharing liner. Only composite shell takes all stresses created by internal pressure.

How to choose right volume of a cylinder?

In order to choose the right volume of any LPG cylinder (steel or composite) the consumer has to decide how much of LPG he is going to distribute per one cylinder and which gas exactly it will be. Then required volume of cylinder can be calculated based on instructions given for cylinder filling in ADR document. Very often end customers in local markets are got used for several specific volume of cylinder and thus they expect to get same amount of gas as they get from similar steelcylinder. In this case cylinder volume has to be chosen based on market requirements. In all cases cylinder operator has to  make sure that the cylinders fit gas filling and distributing infrastructure by checking cylinder physical dimensions and stacking options.

Why cylinder cannot be filled by LPG up to 100% of its volume?

Liquefied petroleum gases (LPG) have high thermal expansion ratio. It means that the volume of gas at 0C is much less than at 30C. For this reason the safety volume of gaseous phase has to be kept in each cylinder. This volume is calculated to cover the worst case scenario when LPG is filled at the lower end of operational temperature range and then cylinder brought to the upper end of operation temperature range. For proper filling cylinder operator has to use filling instructions given by ADR or local technical procedures which are usually very similar to ADR. Very roughly you can consider that maximum weight of Butane gas which can be filled into a cylinder in kilograms is half of a cylinder volume in litres. For example for 24L cylinder you can put there not more than 12kg of Butane. For less dense gases such as Propane and it’s mixtures with Butane this value will be less.

What is the advantages of HPC Research composite cylinder?

Our composite cylinders have several advantages among all other existing composite cylinders. The main one is that we use PET for the production of an inner liner, that’s why our composite cylinders have the lowest and the most consistent gas permeability among Type 4 composite cylinders available in the market, so the consumer will never feel the smell of gas, even indoors. While most of standards consider maximum allowed gas loss of approximately 9 grams per month for 24L cylinder, our cylinder has a loss below 1 gram over the same period of time.  Moreover, we offer the widest opportunities of customization, and our cylinders are compatible with all kinds of threads and valves.

Why composite cylinder is so more expensive than steel cylinder?

Composite cylinders are more expensive than steel ones for many reasons, the main of which are as follows:

1. The production of composite cylinders requires the use of a variety of expensive materials.

2. The manufacturing process of composite cylinders consists of several successive stages, each of which is controlled by highly qualified personnel, which in turn also affects the final price of the product.

3.Cylinder design is more complicated and requires a lot of R&D and testing to ensure proper quality of cylinder and reliability of the design.

Considering all these factors, the consumer will get a high-quality product that meets the most stringent safety requirements. Nevertheless our company continuously works on increasing efficiency of design and production thus reducing the cost and availability of a cylinder to the market.

What is the service life of the HPC Research composite cylinder?


Our cylinders are certified for unlimited lifetime.

How is solved the problem of static electricity accumulation when using composite cylinder?

Thanks to special chemical additives that are added to those parts that can accumulate static electricity, this problem has already been solved at the stage of cylinder production. In addition, we recommend spraying the cylinders or just a conveyer of a filling line with a simple water spray, which will provide additional protection against the possible accumulation of static electricity.

What is an inspection interval of HPC Research composite cylinders?

Our cylinders are certified for 10 years periodic inspection interval.