Valves, fittings and pipe in PPH

PPH (polypropylene homopolymer) is a partially crystalline thermoplastic resin belonging to the polyolefin family.
PPh is the result of the polymerization of propylene (C3H6) with the help of catalysts.

The PPH line in latest generation Homopolymer Polypropylene consists of a complete range of pipes, fittings and valves to be used in the construction of process and service lines for conveying industrial fluids under pressure for maximum operating temperatures up to 100°C .

The entire line is made using Polypropylene Homopolymer resins MRS 100 (PP-H 100) according to classification DIN 8077-8078, DIN 16962 and approved by DIBt - Deutsches Institut für Bautechnik for use in industrial processes.

Features of the PPH

For use in piping systems, the latest generation Polypropylene Homopolymer, PPH, offers excellent performance up to high operating temperatures and high resistance to chemical attack thanks to the physical characteristics of the PPH material.

Among the main properties of the latest generation homopolymer resins we can mention:

High chemical resistance

The use of PPH (Polypropylene) resins, in addition to guaranteeing excellent chemical resistance, specifically against halogens and alkaline solutions, allows, thanks to the use of particular additives, the maintenance of high mechanical characteristics also in the transport of detergents and products similar chemists. The PPH material offers complete compatibility also in the transport of drinking water and water to be made potable, demineralised water and thermal waters for curative use as well as for physiotherapy.

Excellent thermal stability

Especially in the intermediate temperature range between 10°C and 80°C, typical of industrial applications, PPH guarantees performances of excellent mechanical and impact resistance with high safety factors.

Duration over time

The PPH material has a high circumferential breaking load value (Minimum Required Strength MRS≥ 10.0 MPa at 20°C) and made it possible to obtain extremely long life times of the installations, without any particular physical-mechanical decay.

PPH valves, PPH pipe and PPH fittings: a complete system

PPH is widely used in industrial applications due to its high resistance to chemical agents, the ability to operate in a wide range of temperatures and the joining system by means of polyfusion welding.

Our range in PPH (homopolymer polypropylene) is suitable for the assembly of process and service lines intended for the distribution of aggressive industrial fluids under pressure.

PPH systems lend themselves to a variety of applications, including mixing and dosing of chemicals and treatment of exhaust gases.

Our solutions have been selected by some of the major international metallurgical, iron and steel and mining companies, for extraction, surface treatment and acid regeneration processes.

Immagine del tubo a pressione ISO-UNI in PP-H

ISO-UNI pipe in PP-H

Pressure tube

Pressure pipes for jointing system by butt or socket welding.

Immagine dei raccordi di passaggio ISO-UNI in PP-H

ISO-UNI fittings in PPH

ISO-UNI transition fittings.

Series of fittings intended for the conveyance of pressurized fluids with jointing system by means of socket hot welding.

ISO-BSP fittings in PPH

ISO-BSP through fittings.

Series of fittings intended for the conveyance of pressurized fluids with jointing system by means of threading and socket heat welding.

Immagine dei raccordi di passaggio ISO-BSP in PP-H
Valvola a sfera a 2 vie VKD DUAL BLOCK in PP-H

VKD Dual Block - VALVE in PPH

DUAL BLOCK® 2-way ball valve.

FIP has developed a VKD DUAL BLOCK® type ball valve to introduce a high reference standard in the design of thermoplastic valves. VKD is a radially disassembled piston ball valve that responds
to the most stringent requirements required in industrial applications.

VKR Dual Block - VALVE in PPH

DUAL BLOCK® regulating ball valve.

The VKR DUAL BLOCK® valve combines the high levels of reliability and safety typical of the VKD full bore ball valve with the new flow regulation function with linear type characteristic curve which meets the most stringent requirements typical of industrial applications.

Immagine della valvola di regolazione a sfera VKR DUAL BLOCK in PP-H
Immagine della valvola a sfera a 3 vie TKD DUAL BLOCK in PP-H

TKD Dual Block - VALVE in PPH

DUAL BLOCK® 3-way ball valve.

FIP has developed a TKD DUAL BLOCK® type ball valve to introduce a high reference standard
in the conception of thermoplastic valves. TKD is a sorting ball valve and
radially disassembled mixing valve that meets the most stringent requirements required in industrial applications.


Ball check valve.

The check valve SR has the function of allowing the passage of the fluid in one direction only.

Immagine della valvola di ritegno a sfera SR DN 15:50 in PP-H
Immagine della valvola a farfalla FK in PP-H


Butterfly valve.

The FK is a shut-off and regulation butterfly valve, with structural characteristics that are ideal for use in industrial applications that require high performance and reliability over time. This valve is also equipped with the customized Labeling System.

Immagine della valvola a membrana a 2 vie DK DIALOCK in PP-H

DK Dialock - VALVE in PPH

DIALOCK® 2-way diaphragm valve.

The DK DIALOCK® diaphragm valve is ideal for regulating and shutting off abrasive fluids or fluids with impurities. The new internal geometry of the body significantly increases the flow coefficient, reduces pressure drops and allows accurate adjustment over the entire poppet stroke. The DK has reduced dimensions and weight. The innovative handwheel is equipped with a patented mechanism for locking the manoeuvre, immediate and ergonomic, which allows you to lock any adjustment position reached.


Compact diaphragm valve.

The CM is a manually operated diaphragm valve of reduced dimensions and particularly compact structure, ideal for use in confined spaces.

Immagine della valvola a membrana compatta CM in PP-H
Immagine della valvola a membrana VM in PP-H


Diaphragm valve.

The VM is particularly suitable for regulating and shutting off fluids that are abrasive or contain impurities. The handwheel control and the diaphragm seal allow precise and effective regulation and reduce the risk of water hammer to a minimum.

Are you interested in the implemented versions?

Immagine delle valvole attuate elettricamente e pneumaticamente a marchio FIP

Normative requirements

The production of the PP-H (100) lines is carried out following the highest quality standards and in complete compliance with the environmental constraints imposed by the laws in force and in accordance with the ISO 14001 standard. All products are manufactured in accordance with the guarantee system of quality according to ISO 9001 standard.

  • ANSI B16.5 cl.150 Pipe Flanges and Flange Fittings - NPS 1/2 to NPS 24 mm/inch.
  • ASTM D 4101-06 Polypropylene compound according to classification PP0110B56000.
  • BS 10 Specification for flanges and bolts for pipes, valves and fittings.
  • BS 1560 Flanges for pipes, valves and fittings (design according to class). Flanges in steel, cast iron and copper alloys. Specification for steel flanges.
  • BS 4504 Flanges for pipes, valves and fittings (design to PN).
  • DIN 2501 Flanges, dimensions.
  • DIN 2999 Whitworth thread for threaded pipes and fittings.
  • DIN 8077-8078 PP-H pipes, metric series dimensions.
  • DIN 16962 PP-H fittings for socket and butt welding, dimensions.
  • DIN 16963 Pipe joints and piping parts for pressure fluid transport in HDPE.
  • DVS 2202-1 Imperfections of welded joints of PP-H, characteristics, descriptions and evaluations.
  • DVS 2207-11 Socket and butt welding of PP-H components.
  • DVS 2208-1 Machines and equipment for thermoelement welding of pipes, pipe parts and panels.
  • EN 558-1 Industrial valves - External boundary dimensions of metallic valves for use in flanged piping systems - Part 1: Design according to PN.
  • EN 1092-1 Flanges and their joints - Circular flanges for pipes, valve fittings and accessories - Part 1: Steel flanges, designated PN.
  • EN ISO 15494 Component systems (Pipes, Fittings and Valves) in PP-H for industrial applications.
  • ISO 228-1 Pipe threads for non-tight coupling on the thread.
  • ISO 5211 Couplings for fractional turn actuators.
  • ISO 7005-1 Metal flanges; part 1: steel flanges.
  • JIS B 2220 Metal Pipe Flanges.
  • UNI 11318 Pocket welding of PP-H components.
  • UNI 11397 Butt welding of PP-H components.

Approvals and quality marks

DIBt FIP valves in PP-H have been tested and certified by DIBt (Deutsches Institut für Bautechnik)

EAC FIP PP-H valves are EAC certified in accordance with Russian regulations for Safety, Hygiene and Quality

RINA The FIP valves in PP-H are recognized as suitable for the conveyance and treatment of sanitary and conditioning waters on board ships and other units classified by RINA.

TA-Luft The PP-H FIP valves have been tested and certified according to "TA-Luft" by MPA Stuttgart in accordance with the Technical Instruction on Air Quality Control TA-Luft / VDI 2440

UKR SEPRO PP-H FIP valves and fittings are certified in accordance with the Ukrainian regulations for Safety and Quality

NIZP The FIP pipe, valves and fittings in PP-H are recognized as suitable for the transport of drinking water by the NIZP (National Institute of Public Health - Poland)


PP-H system technical catalogue
7.9 MB, PDF
FIP Technical catalogue
PP-H system technical catalogue

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Contact our industry expert

Giulia Lecchi
EMEA Product Manager
+39 342 1821438
Giulia Lecchi: EMEA Product Manager