Hydrants - Brochure

Ductile Cast Iron Hydrants FITTINGS AND VALVES2 3Düker Hydrants – Important Elements of a Modern Public Water SupplyDuctile cast iron hydrantsHydrants are an important part of the public water supply system, with a wide area of application, such as:• drawing water for fire fighting and emergency conditions• setting up of temporary network connections in case of an emergency• aeration and venting of pipe sections• temporary water supply during events or on construction sitesThe right material is what countsMaterial quality is at the core of continued and reliable operations. This is why Düker hydrants are made of ductile cast iron.Another name for ductile cast iron is spherulitic graphite iron. The material has outstanding properties such as a long service life, density, good corrosion resistance, cost effectiveness and on top of it, is fully recyclable. It is therefore reliable and ideally suited to meet the requirements of our hydrants. • underground hydrant type 304 / 305 DN 80, PN 16, pipe covering 0.80 m to 1.50 m• underground hydrant type 393S DN 80, PN 16, pipe covering 0.75 m to 1.50 m• pillar hydrant type 494 AUD shape with two top outlets DN 80 and 100, PN 16, pipe covering 1.25 m and 1.50 m• pillar hydrant type 495 AFUD shape with protective cover DN 100, PN 16, pipe covering 1.25 m and 1.50 m• pillar hydrant type 504 AUD shape, DN 100, PN 16, pipe covering 1.10 m to 1.60 mMaximum protectionAll Düker hydrants are equipped with an secured obturator linkage that prevents the obturator linkage to be catapulted out as a result of the existing operating pressure in case of mechanical damage of the upper part or during maintenance work. DIN outlet coupling, head piece and linkage may be easily replaced by the user. Etec enamel is a composite which melds a per-manent chemical bond with the cast iron pipe section. Its main strengths are:• inside and outside corrosion protection including class III soil• high degree of resistance to mechanical stress (friction, impact, pressure, push)• ageing resistance• prevention of blistering between the base material and the coating, by the diffusion of water through the coating • no sub-surface migration, even in the case of local damage• climate and media resistance (UV-radiation, humidity, temperature, organic solvents)etec-Enamel – the special all-round surface protection for Düker hydrantsPermanent all-round protectionIn order to ensure even better and permanent protec-tion against corrosion and encrustation, our hydrants are fully enamelled, according to the requirements of the DEV guidelines and DIN 51178.No chance is given to bacteria on the flawlessly smooth enamel surface. Biofilm adhesion is actively prevented, thus ensuring hygienically and physiologi-cally safe drinking water supply – even during tem-perature fluctuations.Düker underground and pillar hydrants4 5Underground Hydrant 304 and 305 – with Flange ConnectionDN 80 / PN 16 – pipe covering 0.80 m to 1.50 m, inside and outside enamelledUnderground hydrants of the 304 and 305 series correspond to the require-ments and tests of DIN 3221, DIN 3321 and EN 14339, as well as the DVGW testing standard VP 325 and possess a DVGW type approval test.All materials used correspond to the KTW recommendations of the Federal Environmental Agency and the DVGW worksheet W270. Furthermore, the requirements of the standard are even exceeded in many areas, such as the amount of residual water of 10 cm3 for example (standard requirements: = 80 cm3) or the flow rate at 132 m3/h (standard requirement: = 110 m3/h).Upon request, the hydrants may be serially equipped with a self-locking, epoxy coated stainless steel outlet cover.Materials and technical propertiesThe one-piece body of the underground hydrant type 304 or 305 is made of ductile cast iron and is fully enamelled. The sturdy obturator is also made of cast iron. Its shape allows ideal flow-through conditions and it is further fully coated with premium hydrolysis re-sistant polyurethane.The design of this underground hydrant supports water pressure protection according to DIN 3321. Once the hydrant is opened, the pressurized water will not enter the pillar from the main pipe before the drainage outlet of the pillar is locked. Following that same pattern, the drainage outlet will not open during the shut-off procedure until the main valve is securely locked. This prevents the leaking of pressurized water and allows the remaining residual water to discharge.Dimensions and weightsRange of application• for drinking and raw water• up to 16 bar• up to 60 °CThe most important elements1 = inside and outside enamelled one-piece body2 = cast-on and fully enamelled drainage outlet.3 = factory-mounted EPDM flange gasket with a steel core4 = dual shut-off with an EPDM coated steel ball (305)5 = obturator with full polyurethane elastomer coating6 = solid stainless steel obturator linkage7 = brass guide piece8 = well-established and proven stem bearing9 = self-acting EPDM stone protector10 = DIN outlet coupling with brass ring and cast protective cover with stainless steel chainType DN PN Pipe coveringmmHeight of construction mmWeightkg304 80 16 800 575 2480 16 1000 750 2480 16 1250 1000 3180 16 1500 1250 35305 80 16 800 575 2580 16 1000 750 2580 16 1250 1000 3280 16 1500 1250 36Type 304 comes with a single shut-off and type 305 comes with a dual shut-off device. An additional sealing ball ensures sealing when the linkage is replaced under pressure. There is no need for the pipe to be without pressure due to the dual shut-off device and no additional gate valve is required.Maintenance-free stem bearing as a result of using two O-rings. The rolled stem thread ensures high wear resistance. If repair is needed, the marking on the top of hydrant indicates information about the pipe covering in order to find the appropriate linkage length. The standard linkage safeguarding arrange-ment ensures additional safety during linkage exchange.Installation and operation to be carried out in accordance with the guidelines of the DVGW worksheet W 331.6 7Underground Hydrant 393 S – for TYTON®/ Novo CouplingDN 80 / PN 16 – pipe covering 0.75 m to 1.50 m, inside and outside enamelledTechnical propertiesThe one-piece body of 393 S is made of fully enam-elled ductile cast iron.The sturdy obturator allows ideal flow-through con-ditions and is also made of ductile cast iron with an all-around premium EPDM coating, permanently connected by vulcanization.Pressurized water protection is ensured accord-ing to DIN 3321. Once the hydrant is opened, the pressurized water will not enter the pillar from the main pipe before the drainage outlet of the pillar is locked.Following that same pattern, the drainage outlet will not open during the shut-off procedure until the main valve is securely locked. This prevents the leaking of pressurized water from the discharge outlet and allows the remaining residual water to discharge.Dimensions and weightsRange of application• for drinking and raw water• up to 16 bar • up to 60 °CType 393 S underground hydrant comes with a single shut-off device. This model requires the pipe to be pressure-free during installation. Maintenance free stem bearing (6) through the use of two O-rings. The rolled stem thread ensures high wear resistance. A marking on the hydrant top (one to four cams) provides information about the pipe covering so that the pipe covering can also be determined any time after underground installation.The built-in linkage safeguarding arrangement en-sures secure installation and removal. Installation and operation to be carried out in accordance with the guidelines of the DVGW worksheet W 331.The underground hydrant 393 S is equipped with a spigot that fits into every TYTON®/Novo socket DN 80. It is available for pipe coverings from 0.75 m to 1.50 m.The type 393 S underground hydrant corresponds to all details and tests of the standards DIN 3221, DIN 3230 as well as the DVGW worksheet W331 and has stood the test of time in drinking water supply, fire fighting and emergency water supply.The most important elements1 = inside and outside enamelled one-piece body2 = EPDM obturator3 = cast-on and fully enamelled drainage outlet4 = stainless steel rod5 = brass guide piece6 = stem nut (with rings)7 = stone protector8 = DIN outlet coupling with brass ring and cast protective cover with stainless steel chain9 = cast iron protectorDN PN Pipe coveringmmHeight of construction (H)mmWeightkg80 16 750 670 2980 16 1000 890 3380 16 1250 1140 3880 16 1500 1390 438 9Pillar Hydrant 494 – with Dual Shut-offDN 80 / 100 / PN 16 – pipe covering 1.25 m and 1.50 mColour and design make the 494 pillar hydrant a highly visible water withdrawal point from underground pipelines.It is available with the pipe coverings of 1.25 m and 1.50 m. As an option, the hydrant is also available in a height-adjustable version. Here, the pipe covering is adjustable in 5 cm increments from 1.10 m to 1.60 m (see page 12).Technical propertiesAll body parts are made of EN-JS 1050 ductile cast iron and are enamelled on the inside.The hydrant has two upper B outlets (3) An ad-ditional A outlet is available upon request for the nominal diameter DN 100 (solid coupling according to DIN 14319) (4).Linkage, stem and all screws are made of stainless steel. Stem nut, guide piece, support bearing and predetermined breaking coupling are made of brass.The upper part of the pillar is RAL 3001 powder coated. The lower part of the pillar and the bottom come with a base coat enamel and an additional epoxy resin cover varnish in RAL 3001.In order to prevent the hydrant from being destroyed by impact such as from a car, the linkage is divided with a brass coupling on the progression to the upper part. This way, only the damaged elements with the predetermined breaking point need to be replaced. Range of application• for drinking and raw water• up to 16 bar • up to 60 °CThe type 494 pillar hydrant comes with a dual shut-off. An additional obturator ensures sealing when the linkage is replaced under pressure.Because of the dual shut-off, the pipe does not need to be pressure-free. The safety clasp, however, which protects the maintenance workers, needs to remain in place until the tightness of the dual shut-off can be guaranteed. The packaging concept, too, is worth mentioning. The polystyrene transportation safety device may be also used as drainage stones.The most important elements1 = operating cap, connected with the solid stem extension through a stainless steel pin2 = aeration and vent valve underneath the cap3 = aluminium B couplings according to DIN 14318, attached to the hydrant by a stainless steel chain 4 = A outlet available upon request5 = linkage made entirely of stainless steel, separated by a brass coupling at the progression to the upper part6 = brass linkage safeguarding arrangement7 = lower part with dual shut-offDN PN Pipe coveringmmHeight of construction (L1)mmHeight (L2)mmHeight (L3)mmHeight (L4)mmWeightkg80 16 1250 2195 1000 600 300 13680 16 1500 2445 1000 600 300 147100 16 1250 2195 1000 600 300 140100 16 1500 2445 1000 600 300 151Dimensions and weightsThe pillar hydrant 494 is available with the nominal diameters of DN 80 and DN 100. The flange connection fulfils the requirements of DIN EN 1092-2 PN 16. The hydrant corresponds to the standards of pillar hydrants according to DIN 3222, DIN 3321 and EN 14384, as well as the DVGW testing principle VP 325. A DVGW type ap-proval test is also available for this hydrant.10 11Pillar Hydrant 495 – with Protective CoverDN 100 / PN 16 - pipe covering 1.25 m to 1.50 mThe pillar hydrant type 495 offers both appealing design with its bright red upper part and the stain-less steel protective cover, as well as sophisticated functionality.It is available in the nominal diameter of DN 100 with pipe coverings of 1.25 m and 1.50 m. The flange con-nection fulfils the requirements of DIN EN 1092-2. The hydrant corresponds to the standards of pil-lar hydrants according to DIN 3222, DIN 3321 and EN 14384 as well as the DVGW testing principle VP 325. A DVGW type approval test is also avail-able for this hydrant.Range of application• for drinking and raw water• up to 16 bar (test pressure: 24 bar)• up to 60 °CThe most important components1 = EN-JS 1050 hand wheel2 = stainless steel protective cover3 = B couplings according to DIN 14318, underneath the protective cover (single control with two valves / safety relief valve)4 = A outlet on the lower part5 = linkage made entirely of stainless steel, separated by a brass coupling at the progression to the upper part6 = brass linkage safeguarding arrangement7 = lower part with dual shut-offDimensions and weightsDN PN Pipe coveringmmHeight of construction L1mmHeight L2 mmHeight L3 mmHeight L4 mmWeightkg100 16 1250 2390 1195 895 300 185100 16 1500 2640 1195 895 300 196Technical propertiesBottom, upper and lower part of the pillar, valve head and hand wheel are made of cast iron with spheroidal graphite according to EN 1563. The cast iron body is enamelled on the inside. The upper outside part of the hydrant is protected by a red powder coating in RAL 3001. The lower part and the bottom have a base enamel coating with an epoxy resin varnish in RAL 3001.The cast iron EN-JS 1050 hand wheel is connected to the solid stainless steel stem extension with a feather key. Underneath the stainless steel protective cover, the two well-protected aluminium B couplings are located in accordance with DN14318. They can be individually controlled with two valves. A safety relief valve prevents the protective cover closing when under pressure. The type 495 pillar hydrant is equipped with a predetermined breaking point and a dual shut-off. The lower part of the hydrant also features an outlet with an A solid coupling according to DIN 14319 with an outlet cover.The polystyrene packaging material ensures secure transportation and may additionally be used as drainage stones.12 13DN PN Pipe coveringmmHeight of construction L1 mmHeight L2 mmHeight L3 mmWeightkg100 16 1100 – 1600 1970 – 2470 980 700 140Dimensions and weightsTechnical propertiesThe upper part of the pillar hydrant housing is entirely made of EN-JS 1050 ductile cast iron and enamelled on the inside. The outside of the upper part has a base enamel coating and an additional red paint finish in RAL 3001. Standpipe and standpipe cover are enamelled inside and outside.The hydrant has two upper B outlets (3).Linkage, stem and all screws are made of stainless steel. Stem nut, guide piece, support bearing and predetermined breaking coupling are made of brass.In order to prevent the hydrant from being destroyed by impact such as from a car, the linkage is divided with a brass coupling on the progression to the upper part. This way, only the damaged elements with the predetermined breaking elements need to be replaced.The type 504 pillar hydrant comes with a dual shut-off. An additional obturator ensures sealing when the linkage is replaced under pressure. Because of the dual shut-off, the pipe does not need to be pressure-free. The safety clasp, however, which protects the maintenance workers, needs to remain in place until the tightness of the dual shut-off can be guaranteed. Pillar Hydrant 504 – Height Adjustable, with Dual Shut-offDN 100 / PN 16 - pipe covering 1.10 m to 1.60 mThe type 504 pillar hydrant ideally combines an appealing design with proven functionality. It is available for pipe coverings from 1.10 m to 1.60 m.The hydrant may be perfectly adjusted to the local conditions thanks to its freely rotating upper part and the standard height adjustment in 5 cm increments.The flange connection meets the requirements of DIN EN 1092-2. The hydrant corresponds to the standards for pillar hydrants DIN 3222, DIN 3321 and EN 14384 as well as the DVGW testing principle VP 325.Range of application• for drinking and raw water• up to 16 bar • up to 60 °CThe most important elements1 = operating cap, connected to the solid stem extension with a stainless steel pin2 = aeration and vent valve underneath the cap3 = aluminium B couplings according to DIN 14318, attached to the hydrant by a stainless steel chain4 = linkage entirely made of stainless steel5 = brass linkage safeguarding arrangement6 = dual shut-off CERTIFICATE The Certification Body of TÜV SÜD Management Service GmbH certifies that Düker GmbH & Co. KGaA Würzburger Straße 10 D-97753 Karlstadt Hauptstraße 39-41 D-63846 Laufach has established and applies a Quality Management System for Development, manufacture, supply and service of valves used in water- and gas industries, high pressure ductile iron fittings, drain pipes and fittings, highly acid resistant glass lined components, castings made to specification, centrifugal casting plants for production of castings as well as cokeless cupola furnaces An audit was performed, Report No. 70008454 Proof has been furnished that the requirements according to ISO 9001: 2008 are fulfilled. The certificate is valid until 2012-03-23 Certificate Registration No. 12 100 21864 TMS Munich, 2009-04-08 QMS-TGA-ZM-07-92 14 15Our know-how is your advantageThe Düker name has been synonymous for premium quality iron casting for more than 500 years. Today, we are among the leading manufacturers of valves and pressure pipe fittings for drinking water and gas supply, as well as for pipes and fittings for drainage technology. To be “very good” is setting the standard high. Every day, we are faced with stretching the goal yet a little further. This is why many developments made by Düker are recognized as quality standard among experts today. And we keep on learning and growing. You benefit from our many years of experience. All of our qualified teams in engineering, sales, production and service are happy to assist you with all questions concerning “drinking water and gas supply”. It starts with the planning, continues with logistics and finally results in installation. On top of that, we also consult with you regarding more complex pipe line projects, given the long service life of our products.Düker valves are in use all over the world and are subject to very high requirements, especially when it comes to drinking water. This is why all valves are developed and manufactured by applying the greatest possible care and attention to detail. Need-less to say, before any product will leave Düker, it will be thoroughly put to the test.More than 500 Years of Experience in Iron CastingQuality at the highest possible levelWe are the first ones to set the highest requirements into the quality of our products. It is for that reason that we introduced a modern quality management system according to DIN EN ISO 9001 already in 1993, which has also been TÜV CERT certified.In addition, Düker products have undergone other tests and approval proce-dures in line with product or market specific standards or rule sets. It is not unusual that quality criteria are met within the context of quality assurance associations that are way beyond the standard requirements.It also goes without saying that our valves are CE tested in accordance with DIN 14339 and 14384 and correspond to the current:• KTW recommendations• Guidelines of the Federal Environment Agency for the hygienic evaluation of organic materials that come in contact with drinking water • Requirements of the DVGW publication W 270 “Microbial enhancement on materials to come into contact with drinking water - Testing and as-sessment”FITTINGS AND VALVES DRAINAGE TECHNOLOGYENGINEERINGGLASS LINING TECHNOLOGIESJOBBING FOUNDRYDüker GmbH & Co. KGaAHauptstraße 39-41D-63846 LaufachGermanyPhone +49 6093 87-250Fax +49 6093 87-246Internet: www.dueker.deE-Mail: info@dueker.de772772 / 08.11 Specifications subject to change without notice.