Soil pipes, also known as soil vent pipes, are used to transport wastewater and sewage into the sewer. ACO Hexdrain Pro Channel Drain 138mm x 150mm x 1000mm - C250 Load. Hepworth Building Products Edlington Lane, Edlington, Doncaster DN12 1 BY Technical hotline 0870 443 5551 Literature hotline 0870 443 6000 Web Email drainage@hepworth. Hepworth SuperSleve 150 - Foul water drainage . PP. General enquiries: 0345 456 9594. 01709 856300. New Hepworth flexible couplings range; Al-Vac introduce handy vacuum lift;. Manufacturing Plant: Hazlehead . Hepworth Clay Product Design and Installation Guide . Filters. Marshalls Civils & Drainage – Concrete Flexible Jointed Pipes. MEALINE S Drainage Channel with Galvanised Slotted Grating 1m - A15. Telephone 0844 5561818 calls are charged at 7p per minute PLUS your telephone network will charge you which can be significant. Direct download. Hepworth Clay Drainage Showing all 11 results. Size: 96. Clay. Abstract. General enquiries: 0345 456 9594. Material . Registered in England and Wales. . £92. Model: TD400. Installation is made easy by simply clipping the channels together and using the installation guide marked on the grating. View trade pricing and product data for Hepworth - Clay, CJ3/3 Junction, Socketed Double Oblique 45Deg, Clay, Clay Channels Plain Ended & Socketed. Showing 1-36 of 47. POLY16 COMPRESSION. 46 per U. £77. The undersigned representing the following: Wavin Ltd . 5 Inch Square Rainwater Mini Offset Sp22-w : 2. Range. Delivery or pick up local to you Hepworth Plastidrain from a highly recommended trusted company. Download. Whether it’s domestic, adoptable, commercial or industrial drainage you are installing. Hepworth Clay Drainage Fired to Perfection HEPWORTH CLAY & TERRACOTTA. The clay itself is 100% natural and recycled and meets BS EN 295-1 regulations. Ideal to be. Company Registration No: 01647362. The inherent strength and durability of clay provide benefits to installers,. Hepworth Clay offers a comprehensive range of drainage products suitable for foul and surface water drainage in adoptable, industrial, commercial and highway drainage applications. Wetland hydrology would be sustained in the center section midway between adjacent ditches for ditch spacings greater than L T , with the width of the section dependent on L e , ditch spacing and depth,. Socketed channel system for use in manholes on commercial, industrial and adoptable drainage including gullies. 80 inc. For above ground, we carry top-quality channel drains for efficient rainwater drainage. PDF - 53 KB. 75 Inc. UltraRib is a fully socketed system of pipe and fittings which combines secure jointing with ease of installation. Linear channel at block paved driveway threshold. Hepworth Clay - Pipe Dimensions Clay pipe weights and dimensions Range Plain ended (P/E), Fitted Coupling (C) or Socketed (S) Nominal Inner Diameter (mm) Outer Diameter (mm) Length (mm) Weight (kg) SuperSleve P/E 100 122 1600 14. 2 Pages. The handbook is available as a PDF file for easy download and reference. EST. Direction of flow is from socket towards the spigot. DWG: 2/19/2009: 26. The undersigned representing the following: Wavin Ltd . The threshold drain consists of an external linear grate which sits beside the doortrack. 00 £. Hepworth Clay SuperSleve 300 EPD for SC3/7 . 80 (Exc. Click on the amount in the betting section to adjust it. Hepworth Clay drainage pipes. Hepworth SuperSleve clay drainage system comprises a range of vitrified clay pipes, bends, junctions and fittings available in 100mm, 150mm, 225mm and 300mm diameters, supplied complete with factory -fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. Bends, junctions and fittings are available in 100mm, 150mm, 225mm and 300mm diameters. Hepworth Soil and Waste Systems provide an efficient means of drainage of wastewater and foul discharge in both single and multistorey buildings. Hepworth SuperSleve 300 EPD for SC1/7 . Size: 150mm, Finish: Vitrified Clay, TSI Code: 9791527, EAN Code. Hepworth Clay SuperSleve HouseDrain EPD for. HepFlow® Linear Drainage - polypropylene channel drainage system. Hepworth Clay offers a comprehensive range of drainage products suitable for foul and surface water drainage in adoptable, industrial, commercial and highway drainage applications. Hepworth pvc pipe catalogue pdf. View trade pricing and product data for Hepworth - Clay, SPIC1/2 Chamber, Inspection 150/160mm PPIC 3 Inlets, & 2 Inlet Stoppers, Universals Clay or Plastics, Universal Access Systems. The UK's leading manufacturer and supplier of plastic drainage piping solutions for above and below ground projects. Al Mukab Al Azraq Electric & Sanitary Ware Trading LLC. The grating is suitable for pedestrian traffic and is quick and easy to install. £65. £51. Linear channel at doorway threshold. The Hepworth domestic channel drainage range consists of: HepFlow® Linear Drainage - domestic polymer concrete drainage system. Drainage. In the definitions section of the Drainage Introduction page, the three classifications of drainage (Foul, Surface and Combined) are introduced. Details. ALL PRODUCTS. A variety of finishing options, ranging from slimline stainless steel channel systems to anthracite carpet on our drainage mats, are available to enhance your property. 5027888012760. 30. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. The higher part will be edged on one side by the existing house wall. Provided in a range of capacities and with a choice of styles and load bearing limits, Marshalls has a concrete drain channel that will meet any scheme’s needs. AutoCAD Drawing Created Size Preview PDF Drawing; CB1-1L. £17. Threshold drain jointing piece Hepworth Building £7. ACO MultiDrain M100D - 135mm x 150mm x 1000mm. Pricing group 1 - Key. View trade pricing and product data for Hepworth - Clay, SP1 Pipe, Drainage, Clay, SuperSleve HouseDrain. Email: [email protected] : R12 Drainage Below Ground - Plastic/Metal Type Pipes & Channels. Large Cobble - between 128-256mm size. the specification of clay pipes from Hepworth Clay as an underground drainage solution will provide durability, long term performance and a low lifetime cost. 20 15 SB2/2 45° Bend – Plain Ended 15 29. Manthorpe G930 Combination Airbrick. P. 6m, Finish: Vitrified Clay, TSI Code: 9783506. Hepworth Supersleve Clay Drainage feature high material strength, which betters the performance and life expediency of up too 100 years. Wynn 6000 Series Controller. The offset slots allow for installation opposite walls and doors, and the concealed 10mm. VAT Registered: GB 394 1212 63. PDF: CB1-1R. 5. View Lecture Slides - Hepworth-_-Drain-and-Sewerage-Systems-8th-version-06th-July-2020. 63 ex. Accessible / Level Threshold. Whether you’re installing for a domestic or commercial project. This page looks at all aspects of linear channels. Hepworth Channel Junction Curved Square. Hepworth Clay SJ1/3 150mm x 150mm Diameter Supersleve Plain Ended Equal 45 Degree Oblique Junction. Load class according to EN 1433 . All pipes identified in the Hepworth Clay Drainage price list with the jetting logo are guaranteed for the system lifetime against penetration of the pipe wall up to 7,500 psi. VAT. co. Recommended maximum spacing of access provision (in metres) for manual cleaning (Table Note:1 in BS EN 752-3: 1996 ) To access fitting: To junction To inspection To manhole and Distance from: type 1 type 2 or branch chamber shallow inspection. However, previous studies mainly focus on the influ-ence of geomorphologic characteristics on drainage networks, while hydrological factors are rarely considered. Supported by a CE Mark and Declaration of Performance (DoP) certificate. Main Material . The building should be completed at the end of the summer in 2019 and the changes will be updated on this page in the coming months. Osmachannel 100OC460 Plastic End Plate. Lightweight and easy to fit, HepFlow Polymer Concrete gives installers a wider choice when specifying applications for domestic driveways and pedestrian areas around residential properties. We would like to show you a description here but the site won’t allow us. Inspection Chambers. With exquisite craftsmanship, it exudes an. 00 incl VAT. Hepworth manufactures PVC Soild Wall and Multi layer, HDPE, PPR, PB, ABS pipes and fittings in the UAE, Oman and Qatar. PRODUCTS . co. The Allproof Industries Perimeter Drain is an off the shelf level threshold product that removes the need for boxing out and measuring. Howard (1994) considered a threshold on the gradient divergence normalized by mean gradient. 75. VAT. Hepworth Clay. Categories. £14. Diameter . CE marked and kitemarked to EN 295. Hepworth SuperSleve clay drainage system comprises a range of vitrified clay pipes, bends, junctions and fittings available in 100mm, 150mm, 225mm and 300mm diameters, supplied complete with factory -fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. Q&A. A range of clay pipes and fittings suitable for foul and surface water drainage in adoptable, industrial, commercial and highway drainage applications. Hepworth PME LLC also provides pipes and fitting for gravity drainage installation for effective disposal of waste water. WavinCoil land drain. Typical application: linear channel drain at garage door threshold. Foul and surface water, private drains and public sewers, land drains and soakaways, filter drains and any other ways of getting rid of water. VAT. Domestic Channel - Underground Drainage Supplies | Drainfast Ltd These CAD drawings have been prepared by Hepworth - Wavin and do not necessarily conform to standard FastrackCAD drawing and layering conventions. Hepworth’s SuperSleve manufacturing process results in pipes with thinner body walls that are lighter in weight than traditional clay pipes but have the enhanced product characteristics of dimensional straightness, mechanical strength, in crushing and beam, chemical resistance and resistance to high pressure water jetting. A range of clay pipes and fittings suitable for foul and surface water drainage in adoptable, industrial, commercial and highway drainage applications. STARK Building Materials UK Limited. SKU: HVB3654DS. A widely used method for stream network extraction is to specify a threshold area required to initiate a channel. With a range of accessories available from corner units to ø110mm vertical outlets, it is now possible to use as. uk W: W: W: Overview Hepworth SuperSleve clay drainage system comprises a range of vitrified clay pipes, bends, junctions and fittings available in 100mm, 150mm, 225mm and 300mm diameters, supplied complete with factory-fittedWhen installing a clay drainage system, there are best practices that will help to ensure a safe and effective installation. Flood maps are needed for emergency response, research, and planning. Hepworth Clay SuperSleve 225 EPD for SC1/5 . 42 1442. Pricing group 1 - Key. SUPERSLEVE PIPE. Verified. Manufactured from extruded plastic with an aluminium or steel grating, ACO Threshold Drain eliminates water ponding at house entrances, or around your patio. £58. £79. 3 PL (Drainage Pipes). Vitrified clay is a well-established material for use in below-ground drainage systems. 2 23m ROOF PLAN Determine outlet positions: Underground drainage schemes will permit two downpipes to be used. Size: 110mm, Finish: Polypropylene, TSI. uk. 1. The unique properties of UPVC make Hepworth Watermain pipes, 3820) joints and bends an ideal choice where potable water or other liquids. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. Hepworth PME manufacture polyethylene. The discreet system has a width of 60mm and is available in 1m lengths. Corys Piping Systems: piping solutions for a smarter tomorrow The Hepworth range is comprehensive, offering a complete system for a wide range of applications. Hepworth Below Ground uPVC Plastics Drainage and Sewerage systems. HEPWORTH PME (QATAR) W. ACO Eyeled Lighting Cable Splitter - 300mm x 300mm. Dacta Therm PPR Pipes & Fittings. 6 THE ESSENTIAL PRODUCT GUIDE – CIVILS / Introduction CONTENTS CIVILS Plastic Drainage 7-30 Twinwall and Land Drainage 31-52 Storm Water Management 53-74 Geotechnical Products 75-78 Sewerage & Pollution Control 79-84 Concrete Drainage 85-102 Clay. Blue. Size: 300mm, Finish: Vitrified Clay, TSI Code. VAT Select options. As a market leading contributor to the built environment, our sights are firmly set on leading our industry in sustainability by 2025. Size: 150mm, Finish: Vitrified Clay, TSI Code: 9792526, EAN Code: 5027888020147. Hepworth Channel Bend. Our Price: £26. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with. Direction of flow is from socket towards the spigot. ” Conclusion Paul Wydell, Product Manager at Hepworth, said: “Clay drainage is a genuine fit and forget solution ensuring the hospital’s drainage system will be trouble-free forDoP/Hepworth/Clay Drainage/001 . Drainage and Ducting. Plastic Underground (43) Clay Drainage (42) Attenuation Crates (4) Twinwall Drainage (43) Land Drainage (17) Drain Testing (44) Plastic Gully Pots (6) Manhole Covers & Gully Grates (33) Commercial Linear Drainage (5) Concrete Drainage (0) Access Chambers. 49 £4. Add to basket. PG1. 25 £5. Threshold Drainage Channel. Stone sizes - all roughly to scale. Our fantastic range of drainage supplies includes products designed to support above and below ground applications. One of the UK's most trusted and leading names in plastic drainage systems. The new patio will be on two levels - a higher area which is level with the threshold of the bifold doors, and a step down to a lower level which is level with the existing patio. Plastic Mesh. 01709 856300. Hepworth clay is a sustainable, durable, cost efficient and high performance drainage system. VAT Registered: GB 394 1212 63. £25 off! Buy your plastic, steel or cast iron A15 ACO Channel Drainage here today with next-day delivery and excellent customer service - Shop ACO Drainage today! Hepworth Clay from Wavin is the No. Manufactured from 100% recycled black polypropylene, the highly successful 1m ACO HexDrain channel has been combined with a new offset slot cover specifically designed for slab and block paving, to create ACO HexDrain Brickslot. Handing of channel and access fittings is as used against direction of flow. 80 15 SB4/2 15° Bend – Plain Ended 15 29. Hepworth Clay SJ1/2 150mm x 100mm Diameter Supersleve Plain Ended Unequal 45 Degree Oblique Junction. 00 £. uk 5 SuperSleve HouseDrain Description Nom Dia mm Cat No SuperSleve HouseDrain – continued Square Raising Piece for SG2/1, SH1, SH2 75mm x 150mm x 150mm ! 150 RRS2/1 150mm x 150mm x 150mm ! 150 RRS2/2 225mm x 150mm x 150mm ! 150 RRS2/3 300mm x 150mm x 150mm ! 150 RRS2/4 Access Gully c/w grid ! Hepworth Clay from Wavin is the No. Threshold Drainage x 1m Black Aluminium Grating £27. Brown. The inherent strength and durability of clay provide benefits to installers, specifiers and users: Installation – Reduced, recycled or re-used material can be used instead of primary. 6m x 100mm Brown: Brand: Hepworth Clay: Manufacturer Name: Wavin: Manufacturer Part Number: SP1: EAN: 5027888019844:Hepworth SuperSleve clay drainage system comprises a range of vitrified clay pipes, bends, junctions and fittings available in 100mm, 150mm, 225mm and 300mm diameters, supplied complete with factory -fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. This ACO HexDrain Brickslot channel drain from ACO is a quality drainage channel that works well for 60mm block paving applications. This means that the internal variability within hillslopes is limited up to this threshold. I. 2. Hepworth Clay Technical Handbook is a comprehensive guide to the design, installation and performance of Hepworth clay drainage systems. 45; Hepworth Terracotta ridge tiles. VAT Select options. 3. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. Ensuring rainwater drains away effectively is very important on flush thresholds for both sliding or bifolding doors. Threshold Drain B125 Drainage Channel (125kn) Cast Iron Grate B125 Drainage Channel (125kn) Galvanised Grate B125 Drainage Channel (125kn) Plastic. Introduction to Hepworth Clay Hepworth Clay Vitrified clay is a well-established material for use in below-ground drainage systems. The products fall into five main drainage gully types: Fixed Height and Telescopic gully. The first chapter of the course will cover the Hepworth Clay Supersleve and introduce its key features, advantages. It offers a cheap, elegant and simple solution that can minimise costly underground pipework installation whilst ensuring surface water is safely removed from a paved area. Household Inspection Chambers (HIC) (14) Easi. SourcedThe new patio will be on two levels - a higher area which is level with the threshold of the bifold doors, and a step down to a lower level which is level with the existing patio. co. Garage Threshold: Inside Buildings: Shopping Precincts: Delivery Areas: Defence: Prisons: In grass: In carriageway: Power cables:. 5027888212252. 150. Sheffield S36 4HG . PLUMBING TRADE ESSENTIALS. Download. Vitrified clay pipes for drains and sewersRange. Heating and Cooling. Hepworth PME was established in the UAE in 1974 with it's head office in Dubai. Landscape Drainage. 1 clay drainage brand in the UK, with a reputation second to none for product quality, technical ability and customer service. 61mm wide x 100mm deep x 1000mm long. VAT) – +. ACO Hexdrain Pro Channel Drain 138mm x 150mm x 1000mm - C250 Load. VAT Select. View trade pricing and product data for Hepworth - Clay, SG2/5 Grid, Spare, Clay, SuperSleve HouseDrain. Corys Piping Systems: piping solutions for a smarter tomorrowStory. Direct download. The unique properties of UPVC make Hepworth Watermain pipes, 3820) joints and bends an ideal choice where. 3. SUPERSLEVE COUPLING £ 19. Delivery or pick up local to you Hepworth Drainage from a highly recommended trusted company. example illustrates the use of the drainage data table. At only 60mm wide, the sleek stainless steel grate provides a contemporary and minimalist look. co. CALL: +44 (0) 1733 765317. 20 per U. HEPWORTH - Drainage & UPVC Fitting. ACO HexDrain Brickslot provides a discreet slot drainage system for domestic block paving installation and threshold drainage. In addition, it trades through operating companies in Oman. Hepworth Clay HepLine LP200/4 EPD. Manufacturing Plant: Hazlehead . Dec 5, 2016 - Explore ALE's board "threshold drainage detail" on Pinterest. Hepworth Clay channels and fittings. Hepworth HDPE Pressure Pipes Polyethylene Pipes and Fittings. The streamlined design creates a disguised water barrier between indoor/outdoor living areas. SuperSleve productsWelcome to the new Barbara Hepworth Building Project situated on Queen Street South in Huddersfield. The Hepworth SuperSleve Coupling 150mm (Dia) Black is suitable for foul and surface water drainage systems. £65. Whether it's Hepworth Clay Fired to Perfection logo Brochure. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. ConfirmView trade pricing and product data for Hepworth - Clay, SA9 Adaptor, Soil Pipe to SuperSleve, Clay, SuperSleve HouseDrain. Hazlehead Site, Crow Edge . Q&A. DECLARATION OF PERFORMANCE - CPR . Slimline Domestic Level Threshold Door Drainage ACO Threshold A15 channel drain eliminates water ponding in front of house entrances, available in either a silver or black aluminium finish. Add to basket; Threshold Luxe 60 – Silver Aluminium Safeheel Slotted Grating £ 26. 1 clay drainage brand in the UK. ID DRHSS001 Electrics & Plumbing > Drainage > Below Ground Drainage > Hepworth SuperSleve HouseDrain Pipe 1. W hen such a network is mapped one observes . But ideally I want something that: 1) is domestic - no holes that are going to trap heels etc. the expression ‘sub-threshold drainage works’ means proposed arterial drainage works which would be of a class for the time being specified under Article 24 of the European Communities (Environmental Impact Assessment) Regulations 1989 ( S. Dec 5, 2016 - Explore ALE's board "threshold drainage detail" on Pinterest. Drainage Hepworth threshold drain Foul and surface water, private drains and public sewers, land drains and soakaways, filter drains and any other ways of getting. EAN Number. Home. 1. 00 : Hepworth Supersleve 150 Bend Plain Ended 150mm x 30 Degree: Nr £ 31. Hepworth SP2 Plain Ended. Linear Drains 100 Range 100mm wide grate Page 1 – 14 65 Range 65mm wide grate Page 15 – 33 38 Range 38mm wide grate Page 34 – 35 Threshold Range Page 36 – 38 Vinyl Clamp Range Page 39 Special assembly + Slot Drain Page 40 – 41 High Performance Outdoor Drainage accessories + Finishes Page 42 – 43 Floor WastesDoP/Hepworth/Clay Drainage/001 . CPVC PIPE &FITTINGS. 5027888157577. 25. You will also find manhole covers and gully grates. Int this blog publish, Paul Wydell, Product Acting fork Hepworth Clay explains how physical and safety considerations should be considered whenever planning,. ACO threshold drainage prevents water ponding at building entrances, whilst also providing attractive and functional detail to the architecture of the home. Underground Drainage SystemsBuild Plumb Plastics supply high quality Underground Drainage Pipe and fittings from leading manufacturers including Polypipe, Brett Martin, Naylor, Clark Drain, Pipelife and Fernco. Shallow inspection chambers. Clay is a 100% natural and plentiful raw material. were present. Range. At present, about 299 Mha (or 18%) of the arable and permanent cropped areas worldwide are irrigated and, although drainage is an important component of irrigation, only 22% of these irrigated lands are drained. AutoCAD Drawing Created Size Preview PDF Drawing; CB1-1L. Edlington Lane, Edlington, Doncaster, South Yorkshire, DN12 1BY. . Introduction: The two most common examples of Threshold Drainage would be: Where paving meets an entrance to a building. Registered in England and Wales. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. Add to Basket. This study investigates the effectiveness of drainage tunnels in increasing the rainfall threshold of a deep-seated. Size: 100mmx1. Published [27/03/2017] File size [207 KB] Download document from HEPWORTH CLAY & TERRACOTTA - Pipe Couplings, Surface Water Drainage, Vitrified Clay Ducting, Vitrified Clay Drainage Pipes, Surface Boxes, Land Drainage, Stop Tap Guards, Clay Drainage Systems, Masonry Saw Blades - on BPi. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. lutonlagerlout Site Adminwater drainage at the hospital. Model: TD400. Brand: HEPWORTH PME. Archived versions of Approved. £14. Load Class B 125. WebA15 Hepworth PVCU Threshold Drain Lightweight, PVCU threshold drain,. Posted on February 1, 2023 by jessica. Outer pipe diameter . Tossing up between the relative merits of Hepworth, Flodrain, and Clarke. 92 448. Colour . Hepworth Product Design & Installation Guide HEPWORTH CLAY & TERRACOTTA. 75 Inc. Bramley. The ultimate sustainable, durable, cost-efficient and high-performance sewerage solution. . Hepworth Supersleve Clay Drainage feature high material strength, which betters the performance and life expediency of up too 100 years. Clay 150mm x 1. All pipes identified in the Hepworth Clay Drainage price list with the jetting logo are guaranteed for the system lifetime against penetration of the pipe wall up to 7,500 psi (517 bar). 450 mm. Sharjah Phone: +97165356688 Fax: +971529724805 shaheer@buildlineuae. L. Size: 100mm, Finish: Vitrified Clay, TSI Code: 9783933. View trade pricing and product data for Hepworth - Clay, SBA1 Bend, Access 45Deg, Clay, SuperSleve HouseDrain. £6. ACO Brickslot Threshold Channel Drainage; Fernco Stormdrain Channel Drainage; B125 & C250 Driveway Channel Drain; Flexible Rubber Drainage. When creating or refurbishing a garden, patio, or other landscape, the importance of effective drainage must not be forgotten. Clay, one of the oldest and most sustainable pipe materials, remains a popular choice for drainage specialists. At Buildbase we work closely with leading industry manufacturers and suppliers ACO to supply a wide range of high-quality and competitively priced channel drains, brickslot drains, threshold drains and grates, including the popular ACO RainDrain. Registered Office: Merchant House, Binley Business. . . EAN Number. Wynn Type 1850 External Pantograph Wiper. Whether you're a DIY enthusiast or a professional contractor, t. About Us. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be fitted on site. drainage@hepworth. Threshold Drainage Products. Range Hepworth Clay inspection chambers are supplied complete with multi inlets to connect directly to SuperSleve pipe systems, any or all inlets can be easily adapted to plastic drainage systems with the adaptor provided. View trade pricing and product data for Hepworth - Clay, LP1 Pipe, Perforated, Clay, HepLine. Made from high-quality 304 and 316. For above ground, we carry top-quality channel drains for efficient rainwater drainage.