Georg Fischer (GF) Hakan UPVC pipes and fittings are push-fit, rubber-sealed PVC-U drainage systems made by GF Hakan Plastik in Türkiye to EN 1329-1, EN 1453-1, EN 1401-1 and EN 13476-2. The range includes white soil-and-waste pipes (50–250 mm), multilayer composite pipes (50–200 mm for buildings, 110–200 mm in orange SN4/SN8), orange SN2/SN4/SN8 sewer pipes (110–500 mm) and a full set of fittings: elbows, branches, reducers, clean-outs, check valves, seals and clamps. Arfa Trading supplies the system in Pakistan for buildings, housing schemes, industrial plants and underground drainage. For stock availability and pricing, call: +92 300 2259963 or email: info@arfatrading.pk.
What You Will Find on This Page
- What GF Hakan UPVC pipes and fittings are
- About Georg Fischer and Hakan Plastik
- Why buy from Arfa Trading
- Product range at a glance
- Standard UPVC pipes (EN 1329-1, Type 1 and Type 2)
- Composite UPVC pipes (EN 1453-1 and EN 13476-2)
- Orange sewer pipes (EN 1401-1, SN2, SN4, SN8)
- UPVC fittings range
- Seal system, standards, approvals and quality tests
- Chemical resistance
- Applications in Pakistan
- Installation, storage and handling guidance
- How to choose the right pipe
- FAQs and how to request a quote
What Is Georg Fischer Hakan UPVC Pipes and Fittings?
UPVC (also written PVC-U, unplasticized polyvinyl chloride) is a rigid thermoplastic widely used for gravity drainage. GF Hakan UPVC pipes and fittings are the waste water piping range of GF Hakan Plastik, part of Georg Fischer’s industry and infrastructure flow solutions business. Pipes are supplied with a socket and a factory-fitted rubber lip seal, so joints are made by pushing the plain end into the socket – no solvent cement, no heat, no special tools.
The manufacturer’s guide describes two product categories, UPVC and UPVC Composite, each offered in two wall types (Type 1 UD and Type 2 D), plus an orange sewer range. Together they cover soil and waste discharge inside buildings, drainage under and around buildings, and non-pressure underground sewerage. Pipe lengths run from 150 mm to 6,000 mm.
Key terms you will see in specifications:
- UPVC / PVC-U – unplasticized PVC, the pipe material.
- Soil and waste pipe – drainage pipe for toilets, sinks, showers, floor drains and rainwater downpipes.
- Non-pressure (gravity) drainage – flow driven by slope, not pump pressure.
- SN (nominal ring stiffness) – the pipe’s resistance to external load, expressed in kN/m²; SN2, SN4 and SN8 are the grades in this range.
- Push-fit socket with lip seal – the joint type that allows for thermal movement and fast installation.
About Georg Fischer and GF Hakan Plastik
Georg Fischer was founded in 1802 in Schaffhausen, Switzerland, and its piping division serves customers in more than 100 countries. Hakan Plastik was founded in 1965 in Türkiye, and Georg Fischer announced the acquisition of a majority stake in 2013. According to GF, GF Hakan Plastik operates two production facilities, in Çerkezköy and Urfa, serves both building (superstructure) and infrastructure markets, and runs a Training and Technology Center for installers and business partners.
The company is certified to ISO 9001, and the product guide lists quality certificates and approvals from organizations including TSE (Türkiye), INSTA-CERT and Nordic Polymark (Scandinavia), DVGW, SKZ and Fraunhofer (Germany), AENOR (Spain), SABS (South Africa), GOST-R, UKR SEPRO (Ukraine) and WRAS (United Kingdom). Approvals apply to specific products and standards, so please ask Arfa Trading for the certificate that matches your item and project.
Why Buy GF Hakan UPVC Pipes and Fittings from Arfa Trading?
Arfa Trading is a distributor of Georg Fischer Hakan UPVC pipes and fittings in Pakistan. Contractors, consultants and plumbing engineers work with us because we help match the right pipe class to the job, not only quote a price.
- Complete system supply – pipes, fittings, seals and clamps from one source, so every joint in the line is compatible.
- Specification support – we help you choose between Type 1 and Type 2, standard and composite, and SN2, SN4 or SN8 pipe.
- Genuine, traceable product – every GF Hakan pipe carries manufacturer marking (see the marking section below) so you can verify what arrives on site.
- Project quantities and scheduling – [add stock locations, lead times and delivery coverage].
- Documentation – datasheets, standards references and certificates on request.
- Experience – [add years in business, notable projects and client types so this section demonstrates first-hand experience].
GF Hakan UPVC Product Range at a Glance
| Product family | Standard | Color and marking | Construction | Sizes (mm) | Typical use |
| Standard UPVC Type 1 (UD) | EN 1329-1 / TS 275-1 | White, blue stripe | Monolayer | 50–250 (315–500 as clean-water pipe with socket) | Soil and waste inside buildings; buried drains within the building footprint |
| Standard UPVC Type 2 (D) | EN 1329-1 | White, orange stripe | Monolayer, thinner wall | 50–250 | Lighter-duty drainage connections |
| Composite UPVC Type 1 and Type 2 | EN 1453-1 | White or orange, double blue or double orange stripes | Three-layer | 50–200 | Building and utility drainage where sound reduction and rigidity matter |
| Orange Composite SN4 and SN8 | EN 13476-2 (TS EN 13476-2) | Orange | Three-layer | 110, 125, 160, 200 | Underground drainage and sewerage |
| Orange UPVC SN2, SN4, SN8 | EN 1401-1 / TS 2171-1 | Orange | Monolayer | SN2: 160–500; SN4 and SN8: 110–500 | Non-pressure underground sewers and drains |
Standard lengths listed in the catalog include 0.15, 0.25, 0.5, 1, 2, 3, 4 and 6 m (selected sizes also 1.5 m or 5.8 m), supplied with single socket or double socket.
Standard UPVC Waste Water Pipes (EN 1329-1, Type 1 and Type 2)
Standard GF Hakan UPVC pipes are monolayer pipes for building technology. Type 1 (UD) has a blue stripe and a thicker wall; Type 2 (D) has an orange stripe and a thinner wall. Application codes follow TS 275-1 EN 1329-1:
- U – inside the building, or outside but mounted on the wall.
- D – underground connection to drainage and sewerage under the building or within 1 meter of it.
- UD – suitable for both U and D applications.
Technical summary (per manufacturer’s guide): push-fit socket connection; colors white, orange or grey; raw material PVC; stated service life 25 years; diameters 50, 75, 110, 125, 160, 200 and 250 mm, with 315–500 mm offered as clean-water pipe with socket.
| External diameter (mm) | Wall thickness Type 1 (mm) | Wall thickness Type 2 (mm) |
| 50 | 3.0 | 1.8 |
| 75 | 3.0 | 1.8 |
| 110 | 3.2 | 2.2 |
| 125 | 3.2 | 2.5 |
| 160 | 4.0 | 3.2 |
| 200 | 4.9 | 3.9 |
| 250 | 6.2 | 4.9 |
| 315 | 7.7 | 6.2 |
In the catalog, a 110 mm Type 1 pipe has a socket depth of 60 mm and a 3.2 mm wall; a 160 mm Type 1 pipe has an 81 mm socket and a 4.0 mm wall. Full dimension, code and packing tables are available from Arfa Trading.
Composite UPVC Pipes (EN 1453-1 and EN 13476-2)
GF Hakan composite pipes are multilayered. The manufacturer describes the structure as:
- Inner layer – UPVC: smooth surface for excellent flow performance.
- Middle layer – foam plus UPVC: adds flexibility, light weight and resistance, and provides sound isolation.
- Outer layer – UPVC: provides resistance to impact.
According to the guide, composite pipes are more flexible and more impact-resistant than standard UPVC pipes, have about double the ring rigidity, are easier to install because of their flexibility, and offer high corrosion resistance.
EN 1453-1 composite pipes (buildings): white or orange; Type 1 UD with double blue stripes and Type 2 D with double orange stripes; diameters 50, 75, 110, 125, 160 and 200 mm.
| External diameter (mm) | Type 1 wall (mm) | Type 2 wall (mm) |
| 50 | 3.0 | 2.0 |
| 75 | 3.0 | 2.0 |
| 110 | 3.2 | 2.2 |
| 125 | 3.2 | 2.2 |
| 160 | 3.2 | 3.2 |
| 200 | 3.9 | 3.5 |
EN 13476-2 orange composite pipes (SN4 and SN8): diameters 110, 125, 160 and 200 mm, orange, for building and utility use. Catalog wall thickness (SN4 / SN8): 110 mm – 3.2 / 3.6; 125 mm – 3.2 / 3.7; 160 mm – 4.0 / 4.7; 200 mm – 4.9 / 5.9.
Orange UPVC Sewer Pipes (EN 1401-1, SN2, SN4, SN8)
For underground non-pressure drainage and sewerage, GF Hakan offers monolayer orange pipes under TS 2171-1 EN 1401-1. The three stiffness classes let designers match pipe strength to burial depth, traffic load and soil conditions.
| External diameter (mm) | SN2 wall (mm) | SN4 wall (mm) | SN8 wall (mm) |
| 110 | – | 3.2 | 3.2 |
| 125 | – | 3.2 | 3.7 |
| 160 | 3.2 | 4.0 | 4.7 |
| 200 | 3.9 | 4.9 | 5.9 |
| 250 | 4.9 | 6.2 | 7.3 |
| 315 | 6.2 | 7.7 | 9.2 |
| 355 | 7.0 | 8.7 | 10.4 |
| 400 | 7.9 | 9.8 | 11.7 |
| 450 | 8.8 | 11.0 | 13.2 |
| 500 | 9.8 | 12.3 | 14.6 |
SN2 is offered from 160 to 500 mm; SN4 and SN8 from 110 to 500 mm. Pipes are available with single socket, double socket, and (in SN2) without socket for use with sleeve couplings. Sizes of 315 mm and above are marked in the catalog as clean-water pipe with socket.
GF Hakan UPVC Fittings Range
The fittings range uses the same push-fit, lip-seal design as the pipes, in white and orange.
| Fitting | Sizes and variants listed in the catalog |
| Elbows | 15° (110 mm), 30° (110 mm), 45° (50–250 mm), 67° (110 mm), 87° (50–250 mm) |
| Reducers | From 75×50 up to 250×200 mm |
| Branches (tees) | 45° and 87°, equal and reducing, 50×50 up to 250×250 mm |
| Double branches | 45° (50–250 mm); 87° (50×50, 110×50, 110×110, 160×110 mm) |
| Special branches | Tee branch corner, left and right 87° tee branches (110×110×87), WC double branch (110×90×90) |
| Sleeve socket (coupler) | 50–200 mm |
| Clean-out (access) | 50–250 mm |
| Closing cap | 50–250 mm |
| S-siphon | 75/87°, 110/87°, 75/45°, 110/45° |
| Check valves | Villa type (110, 125 mm); with cap (110–200 mm); horizontal (50, 75 mm); vertical (50, 75 mm); sink (50 mm) |
| Pipe repair item | 110 mm |
| Ventilation cap (Upcast) | 75 and 110 mm |
| Seals | 50–250 mm |
| Pipe clamps | 50–200 mm |
The check valves help prevent backflow, which is valuable in low-lying properties and areas where drains can surcharge in heavy rain.
Seal System and Joint Design
The socket has a lip seal that the manufacturer says guarantees water tightness while allowing the pipe to move with thermal expansion. Two seal types are used:
- Ringed seal for 50, 75, 110, 125 and 160 mm.
- Single cheek seal for 200 mm and larger (200, 250, 315, 355, 400, 450 and 500 mm).
Spare and replacement seals are available separately in sizes 50–250 mm.
Standards, Approvals and Pipe Marking
System standards referenced in the guide
- EN 1329-1 – PVC-U pipes, fittings and systems for soil and waste discharge inside buildings (marked B) and buried within the building structure (marked BD).
- EN 1401-1 – plastics piping for non-pressure underground drainage and sewerage, unplasticized PVC.
- EN 1453-1 – structured-wall PVC-U pipes for soil and waste discharge inside buildings.
- EN 13476-2 – structured-wall piping for non-pressure underground drainage and sewerage, Type A (smooth internal and external surfaces).
Approvals shown in the guide: TSE (Türkiye – TS 275-1 EN 1329-1, TS EN 1453-1, TS EN 13564-1, TS 2171-1 EN 1401-1), UKR SEPRO (Ukraine) and INSTA-CERT (Sweden).
How to verify a genuine pipe: GF Hakan pipes and fittings are marked with the manufacturer’s logo, trade name and trademark, standard numbers, material, pipe type, diameter and wall thickness, machine number, date of manufacture and EAN code. Check these markings when material is delivered to your site.
Quality Tests Performed on GF Hakan UPVC Pipes
The guide states that pipes and fittings are tested at each stage of production in line with TS 275-1 EN 1329-1:
| Test | Standard | Condition | Result |
| Leakage test | TS EN 1277 | 0.5 bar, 23 °C, 15 min | No leakage |
| Falling ball (impact) test | TS EN 744 | 0 °C | Less than 10% damage |
| Resistance to dichloromethane | TS EN 580 | 15 °C, 30 min | No deterioration of surface |
| Vicat softening temperature | TS EN 727 | ≥ 79 °C | No visual distortion |
| Longitudinal change in dimension (pipes) | TS EN 743, Method B (air) | 150 °C, 30 min | ≤ 5%, no cracking or swelling |
| Effect of temperature (fittings) | TS EN 763, Method A (air) | 150 °C, 30 min | No cracking or swelling |
Chemical and Temperature Resistance
GF Hakan states that its UPVC pipes and fittings keep their physical properties up to 60 °C and resist acids of pH 2–7 at 20 °C and alkalis of pH 7–12 when no internal pressure or external mechanical impact is applied. The guide includes a resistance chart based on ISO/TR 10358 and TS 11448.
Resistant (D) at 20 °C and 60 °C in the chart: aqueous ammonia, ammonium chloride and sulphate, sodium hydroxide, sodium chloride, potassium hydroxide, calcium chloride and carbonate, hydrogen peroxide (30%), glycerin, mercury, gasoline (working solution), plant and animal oils, milk, beer and wine.
Resistant at 20 °C with reduced resistance at 60 °C: acetic acid (50%), ethanol (95%), methyl alcohol, urine, soap solutions, adipic acid.
Poor resistance (ZD): acetone, benzene, toluene, trichloroethylene, chloroform, carbon tetrachloride, phenol (90%), aliphatic hydrocarbons, concentrated sulphuric acid (98%) and nitric acid above 50%.
For industrial effluent, always check the exact chemical, concentration and temperature against the full resistance table before specifying UPVC. Arfa Trading can share the complete chart.
Where GF Hakan UPVC Pipes Are Used in Pakistan
The guide lists waste water, rain and drain water, water distribution, underground and surface water handling, plumbing, irrigation, electrical and communication conduits, and chemical and industrial plants as applications. For Pakistani projects, typical uses include:
- High-rise and apartment buildings – vertical soil and waste stacks with composite pipe for lower noise.
- Housing societies and villas – internal drainage, bathrooms, kitchens and underground connections to the sewer.
- Commercial buildings, hospitals, hotels and malls – branch drains, floor drains and clean-out access.
- Industrial facilities and textile units – process and sanitary drainage, within the chemical limits above.
- Municipal and infrastructure drainage – SN2, SN4 and SN8 orange pipes for gravity sewers and stormwater lines.
- Rainwater downpipes – wall-mounted systems supported with clamps.
The guide notes that UPVC resists corrosion from acids, alkalis, oils, salts and moisture and is suited to severe climate and soil conditions in the Middle East, which is useful context for hot, humid and saline environments in Pakistan. Pipe class and bedding should still be designed by a qualified engineer for local ground conditions.
Benefits of Georg Fischer Hakan UPVC Pipes and Fittings
- Leak-resistant joints – high-quality seal rings in every socket.
- Smooth bore – smooth internal and external surfaces reduce sediment and lime build-up and support fast, proper flow.
- Lightweight and fast to install – easy handling saves labor and time.
- Corrosion resistant – no rusting; safe transport of many acids, alkalis and chemical concentrates within stated limits.
- Electrically insulating – eliminates the risk of electrolytic corrosion.
- Not flammable – the guide states the material has no spontaneous combustion property and burns only under open flame.
- Long service life – the manufacturer states 25 years.
- Sound reduction (composite) – the foam middle layer provides sound isolation.
Installation Guidance (Summary of Manufacturer’s Recommendations)
Making a push-fit joint
- Clean the pipe end and the socket, wiping away dust and moisture.
- Seat the seal correctly in the socket.
- Apply a thin layer of lubricant to the pipe end and seal. Do not use grease or soft soap. The guide also says: do not install without lubrication.
- Insert the pipe fully until it stops.
- Mark the inserted position on the pipe at the socket edge with a pencil or felt pen.
- Withdraw the pipe by 10 mm to leave an expansion gap. In vertical runs, do this for each additional story; in horizontal runs, after every 4 m of laid pipe. Push-fit connections directly between fittings can stay fully inserted.
In vertical pipework, fasten each length with a bracket under the socket right after installation to prevent sinking.
Clamps and supports (above-ground)
Use clamps at every branch and elbow, and fix and support the bottom of vertical lines such as rainwater downpipes. As a general rule the guide recommends clamps 1–1.5 m apart. Maximum clamp distances:
| Pipe diameter (mm) | Horizontal (m) | Vertical (m) |
| 50 | 0.75 | 1.50 |
| 75 | 1.10 | 2.00 |
| 90 | 1.35 | 2.00 |
| 110 | 1.65 | 2.00 |
| 125 | 1.85 | 2.00 |
| 160 | 2.40 | 2.00 |
| 200 | 3.00 | 2.00 |
| 250 | 3.00 | 2.00 |
For very tall buildings, rubber-lined metal clamps are recommended; take care not to damage the pipe.
Underground installation
Keep the trench as dry as possible until the pipe is laid and enough backfill is placed, because empty PVC pipe floats. The guide suggests loose backfill of about 1.5 times the pipe diameter to prevent flotation of empty pipe. Use a trench with a correct, flat-bottomed cross-section rather than a rounded one, and keep excavated material clear of roads, footpaths and utilities.
Changes of direction and clean-outs
The guide includes layout rules for fittings and access points, including: a clean-out at the base of every vertical soil or waste stack; a clean-out near the junction of the building drain and building sewer; a clean-out at changes of direction greater than 45° made with a single fitting (two 1/8 bends do not require one); and a maximum clean-out spacing of 100 feet (about 30 m) in horizontal drains. Double sanitary tees should not receive back-to-back toilets or pumped appliances such as washing machines unless the distance between the closet flange and the tee inlet is at least 18 inches. These rules follow the manufacturer’s referenced code practice, so always confirm against your project specification and the plumbing requirements applicable to your site.
Storage, Handling and Transport
- Unload in unit packs where possible and stack on reasonably level ground.
- Never stack higher than 2.5 m; place thicker-wall pipe at the bottom of mixed stacks.
- When storing pipes in sunlight, cover them with an opaque material that still allows air circulation, to avoid excessive heat build-up.
- Do not drop pipes. String pipe beside the trench with socket ends pointing in the direction of work, and take extra care in very cold weather.
How to Choose the Right GF Hakan UPVC Pipe
| Your project need | Suggested starting point |
| Bathroom, kitchen and stack drainage inside a building | Standard UPVC Type 1 (UD), 50–160 mm | | Quieter drainage in apartments, hotels or hospitals | Composite UPVC (EN 1453-1), 50–200 mm | | Buried drain connecting the building to the sewer | UD pipe within 1 m of the building, or orange pipe beyond | | Underground sewer under light cover | Orange UPVC SN2 (160–500 mm) | | Underground sewer with deeper cover or traffic loading | Orange UPVC SN4 or SN8 (110–500 mm); orange composite SN4/SN8 (110–200 mm) | | Backflow protection | Check valves (villa, with cap, horizontal, vertical or sink types) | | Access for cleaning | Clean-out fittings and clean-out tees |
This table is a starting guide only. Final selection must be based on your consultant’s design, burial depth, soil, traffic load and applicable standards. Share your drawings or bill of quantities with Arfa Trading and we will match pipe class, fittings and seals.
Frequently Asked Questions
What is Georg Fischer Hakan UPVC pipes used for?
They are used for soil and waste discharge, rain and drain water, underground sewerage and general non-pressure drainage in buildings, industrial plants and infrastructure projects. Different product families suit indoor stacks, buried building drains and municipal sewers.
What is the difference between Type 1 and Type 2 pipes?
Type 1 (UD) has a thicker wall and a blue stripe and can be used inside buildings and underground. Type 2 (D) has a thinner wall and an orange stripe and is designated for underground connection use. For example, a 110 mm pipe has a 3.2 mm wall in Type 1 and 2.2 mm in Type 2.
What is the difference between white and orange UPVC pipes?
White pipes (EN 1329-1 and EN 1453-1) are primarily for drainage inside and around buildings. Orange pipes (EN 1401-1 and EN 13476-2) are designed for non-pressure underground drainage and sewerage and come in stiffness classes SN2, SN4 and SN8.
What do SN2, SN4 and SN8 mean, and which should I use?
SN is the nominal ring stiffness in kN/m², a measure of how well the pipe resists external loads. Higher numbers mean a stiffer pipe with a thicker wall. Use SN2 for shallow, lightly loaded installations and SN4 or SN8 for deeper burial or traffic loads, as determined by your engineer.
Why choose composite UPVC pipes over standard UPVC?
Composite pipes have a three-layer wall with a foam core. According to the manufacturer they offer higher impact resistance, about double the ring rigidity and better sound isolation than standard UPVC pipes, which suits apartment blocks, hotels and hospitals.
Which sizes are available?
White standard pipes run from 50 to 250 mm, composite pipes from 50 to 200 mm, and orange sewer pipes from 110 to 500 mm. Sizes of 315–500 mm in the standard range are clean-water pipes with socket. Availability varies, so confirm stock with Arfa Trading.
How do I join GF Hakan UPVC pipes?
Clean both ends, lubricate the pipe end and seal (not with grease or soft soap), push the pipe fully into the socket, mark the position and withdraw it by 10 mm to allow for expansion. No solvent cement is needed.
What temperature can GF Hakan UPVC pipes handle?
The manufacturer states the pipes keep their physical properties up to 60 °C. They are designed for drainage, not for continuous hot-process discharge above that temperature.
How long do GF Hakan UPVC pipes last?
The catalog states a service life of 25 years for the product families in this range under correct design, installation and operating conditions.
Can UPVC pipes carry chemicals and industrial effluent?
UPVC resists many acids, alkalis, salts and oils, but has poor resistance to solvents such as acetone, benzene, toluene, chloroform and trichloroethylene, and to concentrated sulphuric acid. Check the chemical, concentration and temperature against the resistance chart before specifying.
Does Arfa Trading supply fittings, seals and clamps as well as pipes?
Yes. We can supply the matching fittings, replacement seals (50–250 mm), clamps (50–200 mm), check valves, clean-outs and caps so your drainage system is complete and compatible.
How do I get a quote from Arfa Trading?
Send your pipe type, diameter, wall type or SN class, lengths, fitting list and quantities by phone or email. Drawings or a bill of quantities helps us prepare an accurate quote quickly.
Request a Quote for GF Hakan UPVC Pipes and Fittings
To order Georg Fischer Hakan UPVC pipes and fittings in Pakistan, contact Arfa Trading with:
- Application (indoor drainage, building drain, underground sewer, rainwater)
- Standard and color (EN 1329-1, EN 1453-1, EN 1401-1, EN 13476-2; white or orange)
- Type or stiffness class (Type 1, Type 2, SN2, SN4, SN8)
- Diameters, lengths and socket type (single or double)
- Fittings, seals, clamps and valves required
- Delivery location and schedule
Arfa Trading – Authorized distributor of GF Hakan UPVC drainage systems in Pakistan Phone: +92 300 2259963 · Email: info@arfatrading.pk