RELIABLE DURABLE SAFE Industrietechnik GmbH PERMADOR PARADOR K2000R HIGH-PRESSURE- GATE VALVES SWING CHECK VALVES PARADOR PERMADOR K2000R

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1 RELIABLE DURABLE SAFE Industrietechnik GmbH PERMADOR PARADOR K2000R HIGH-PRESSURE- GATE VALVES SWING CHECK VALVES PARADOR PERMADOR K2000R

2 INTRODUCTION TO THE COMPANY DRW INDUSTRIETECHNIK DRW INDUSTRIETECHNIK GMBH Reliable. Durable. Safe. DRW INDUSTRIETECHNIK GMBH Dortmund site As a medium-sized manufacturer and retailer of top-quality industrial valves, DRW Industrietechnik GmbH has been supplying high-class products for worldwide use since Our customers include many well-known international companies. As a top-quality manufacturer, we produce high-pressure gate valves and check valves offering maximum safety and durability. And as a leading specialist dealer, we have large storage capacity at various locations, and are therefore able to supply all standard valves from domestic and international manufacturers in a very short time. As a qualified engineer, producer and supplier with comprehensive after-sales service, we can offer you our know-how for tailor-made solutions from a single source. Our valves can be found in all major industries where quality and precision are essential for a smooth-running operation. These include the chemical industry, the pulp and paper industry, sewage disposal, power plant and shipbuilding, and the transportation and production of gas. Our large storage capacity allows us to respond to your enquiries and orders with a high degree of flexibility. Thanks to our extensive stock, we can quickly deliver the products you require from all leading German and international manufacturers. 02

3 INTRODUCTION TO THE COMPANY DRW INDUSTRIETECHNIK THE DRW GROUP With 4 powerful units. GROUP From the production of top-quality valves to comprehensive retail and maintenance services, the DRW Group offers unique all-round service from a single source. is your powerful partner for high-quality valves from all well-known manufacturers. is your top-quality producer of safe, high-class industrial valves. We are a technical services company for whom only the highest standard of service is good enough. is your specialist for largescale projects. With its extensive warehouse capacity, DRW Industrietechnik can quickly supply all standard valves from domestic and international manufacturers. The high-pressure gate valves and check valves produced by DRW Armaturentechnik provide maximum reliability, safety and durability. That s quality made in Germany! That is why precision and quality are top priority in our company. We pride ourselves in the excellence of every service we offer. When it comes to knife gate valves, Geier International is your ideal specialist. With its many years of experience with valves for the water and wastewater industry, this high-performance company will always come up with an excellent, practical solution for your project. 03

4 COMPREHENSIVE SERVICE DRW INDUSTRIETECHNIK SHUTTING OFF. REGULATING. DISTRIBUTING. Powerful solutions for industry. QUALITY Always safe. Always reliable. No matter whether it s special valves produced by ourselves, or brands from other well-known manufacturers, we always provide excellent, certified quality. We have been operating in accordance with the quality management system DIN EN ISO 9001:2008 since 1996, and guarantee the fulfilment of the European Pressure Equipment Directive PED 97/23/EG, and all current national and international regulations and standards. All our national and international suppliers are also certified on a regular basis. PRODUCTION Top-quality valves. From experts. For experts. We manufacture high-pressure gate valves and check valves, glove valves, ball valves, strainers and butterfly valves that you can rely on. As a producer, we have the expertise to always provide excellent solutions for the most demanding applications. We help to ensure that your operations run successfully and safely. It goes without saying that our production is always in accordance with all important national and international standards, and among other things, we guarantee that our products fulfil the European Pressure Equipment Directive PED 97/23/EG. Thanks to our modern workshop and experienced staff, we are able to produce individual solutions for your special requirements quickly and with a high degree of flexibility. 04

5 COMPREHENSIVE SERVICE DRW INDUSTRIETECHNIK MAINTENANCE, SERVICE AND REPAIRS Professional services even in emergencies. With a whole range of valuable repair and maintenance services, we are there for you right from the beginning, helping you to ensure the effective and economical running of your operations. Not only do we take care of the regular maintenance of your system and professionally carry out all the necessary checks, but among other things we can also help you design your valves. Wherever possible, we help you to avoid costly new investments in complete plants by only replacing the individual critical components, and, if necessary, producing any hard-to-get spare parts ourselves. Even when emergency situations arise, we can be there in next to no time to provide expert assistance. WAREHOUSE We always stock perfect solutions. Our high stock levels ensure that all products are readily available. With our wide product range and extensive warehouse capacity, we can supply all standard valves from the major national and international manufacturers in next to no time. This means we always respond to your requests with a high level of flexibility and quickly provide a perfect solution. Thanks to our close collaboration with all leading manufacturers, we can also provide tailor-made solutions for the most specific individual requirements in a short space of time. 05

6 PERMADOR / PARADOR HIGH PRESSURE GATE VALVES DRW Armaturentechnik GmbH D Dortmund PERMADOR Description and properties The Babcock PERMADOR and PARADOR range is long established as a valve with high integrity and long service life. Now exclusively manufactured by DRW, this range of gate valves with wedge or parallel plates, has been brought in to compliance with the latest EU standards. It is being manufactured entirely within Germany and Europe and is the best choice for water, power and petrochem applications where a high specification shut-off valve is required. Applications WATER, STEAM, GAS, OIL Nominal diameters DN , NPS 2 24 Pressure range PN , CLASS Body material FORGED STEEL 06

7 PERMADOR / PARADOR HIGH PRESSURE GATE VALVES PERMADOR Description and properties Description of function PERMADOR gate valves have a wedge-shaped plate shut-off system. The contact force required for sealing is applied by the wedging of the shut-off fitting. The wedge plate design has significant advantages Realization of the ideal wedge, with a lower opening than closing force. Introduction of the contact pressure in the mean seat diameter, avoiding deformation of the sealing plates. Body seat ring PERMADOR Guiding of the shut-off fittings The body seat ring and the guiding in the shutoff fittings form a single unit. This is why no guide rails are necessary here. The integrity of the body is not compromised. Pressure sealing bonnet The seal consists of pure graphite. The internal pressure presses the bonnet against the seal, which in turn is supported in the body. Gasket Thanks to the sloping partition, the pressure forces are redirected to both the body wall and the bonnet. Gland The gland packing consists of individual prepressed open rings. The following materials are used according to the application area: Stem sealing Pure graphite and PTFE. Contact pressure is applied via studs in the packing. The rolled packing space and the burnished stem ensure the optimum distribution of contact pressure throughout the packing space. Sealing surfaces Stellite sealing surfaces in the body and on the sealing plate guarantee high wear resistance, even with high surface pressures. The lapped surfaces ensure reliable sealing. Stem The hammer head stem is forged from a corrosion-resistant chrome steel in one piece. The stem shaft is burnished. The trapezoidal screw Stem thread is produced using special whirling machines with maximum precision and surface quality. Stem bearing The stem force is captured via the threaded bushing using an axial deep groove ball bearing with a long service life. The bearings have long-lasting lubrication and are protected against pollution by oil seals. The threaded bushing can be lubricated via a grease nipple. 07

8 PERMADOR / PARADOR HIGH PRESSURE GATE VALVES PERMADOR Overpressure safety devices In a closed PERMADOR gate valve, heating of fluid enclosed in the third chamber can cause undue pressure in the body (fig. 1). The resulting pressure in the body cause the permissible pressure to be exceeded, leading to the failure of the component. This can occur especially with gate valves with self-sealing. To avoid prohibited operating conditions of this kind, the system designer is required to provide suitable pressure relief devices (see fig. 2-5). Fig. 1 Closed socket Fluid enclosed in the third chamber Fig. 2 Model with hole in the slide plate or in the seat ring. In lines that flow in only one direction. Bore of the wedge on the inlet side or one-sided pressure relief bore in the seat ring (fig. 2). Fig. 3 Equalising pipe from the third chamber to side exposed to the pressure. Installation of a equalising pipe from the third chamber to the pressure side of the valve (fig. 3). Fig. 4 Bypassing the third chamber. Installation of a bypass for the third chamber using bypass valves (fig. 4). Fig. 5 Model with safety valve. Installation of safety valve with bursting disc in lines that flow alternately in both directions, (fig. 5). 08

9 PERMADOR / PARADOR HIGH PRESSURE GATE VALVES PARADOR Description and properties Description of function PARADOR gate valves have a shut-off system, which consists of two parallel sealing plates. The sealing plates are preloaded on heat-resistant compression springs and remain in contact with the sealing surfaces of the body during the entire lifting movement. The specially designed shut-off system reliably prevents the build-up of pressure in the valve body. Other benefits: constant actuating forces The parallel shut-off system cannot be mechanically stuck or jammed. No increase in actuating forces in the end position. Intermediate positions The parallel sealing surfaces of the shut-off system are pressed by the spring force and the operating pressure during the entire lifting movement. With moderate pressure differences, intermediate positions of the shut-off device are possible. Body seat ring PARADOR Guiding of the shut-off fittings The body seat ring and the guiding in the shutoff fittings form a single unit. This is why no guide rails are necessary here. The integrity of the body is not compromised. Pressure sealing bonnet The seal consists of pure graphite. The internal pressure presses the bonnet against the seal, which in turn is supported in the body. Gasket Thanks to the sloping partition, the pressure forces are redirected to both the body wall and the bonnet. Gland The gland packing consists of individual prepressed open rings. The following materials are used according to the application area: Stem sealing Pure graphite and PTFE. Contact pressure is applied via studs in the packing. The rolled packing space and the burnished stem ensure the optimum distribution of contact pressure throughout the packing space. Sealing surfaces Stellite sealing surfaces in the body and on the sealing plate guarantee high wear resistance, even with high surface pressures. The lapped surfaces ensure reliable sealing. Stem The hammer head stem forged from a corrosion-resistant chrome steel in one piece. The stem shaft is burnished. The trapezoidal Stem screw thread is produced using special whirling machines with maximum precision and surface quality. Stem bearing The stem force is captured via the threaded bushing using an axial deep groove ball bearing with a long service life. The bearings have long-lasting lubrication and are protected against pollution by oil seals. The threaded bushing can be lubricated via a grease nipple. 09

10 K2000R SWING CHECK VALVE DRW Armaturentechnik GmbH D Dortmund K2000R SWING CHECK VALVE The Babcock K2000R range is long established as a swing check valve with high integrity and long service life. Now exclusively manufactured by DRW, this range of swing check valve has been brought in to compliance with the latest EU standards. It is being manufactured entirely within Germany and Europe and is the best choice for water, power and petrochem applications where a high specification check valve is required. Applications WATER, STEAM, GAS, OIL Nominal diameters DN mm NPS 2 24 Pressure range PN , CLASS Body material FORGED STEEL 10

11 K2000R SWING CHECK VALVE Pressure sealing bonnet The seal consists of pure graphite. The internal pressure presses the bonnet against the seal, which in turn is supported in the body. Thanks to the Bonnet sloping partition, the pressure forces are redirected to both the body wall and the bonnet. Bearing pin The corrosion-resistant bearing pin for the sealing plate is secured using a u-shaped bracket, and the bracket is clamped onto the bonnet Bearing pin with screws. The screws are doubly secured and specially designed to prevent loosening and falling out. CONSTRUCTIVE Design K2000R General information K2000R is a swing check valve that ensures perfect, simple operation thanks to its glandless bolt mounting. The sealing plate is actuated by the differential pressure of the flow medium. The degree of opening is determined by the throughput rate. In the fully open position, the sealing plate opens sufficiently for the nominal diameter. The non-return valve is closed with a bonnet. Shut-off system The mounted sealing plate is freely suspended on an eyelet in the bearing pin attached to the body seal. The bracket prevents the bearing pin from falling out. It is connected to the pressure sealing bonnet by means of two hexagonal screws. The screws are secured against unwinding using locking plates. In addition, the length of the screw ensures that the plate suspension secures it against falling out. Sealing surfaces The sealing surfaces on the body seal and the sealing plate are armoured and guarantee high wear resistance. The lapped surfaces ensure reliable sealing. Bearing pin The bearing pin is made of wear-resistant, corrosion-resistant chrome steel. The shaft is polished. Pressure sealing bonnet A bonnet forms the end of the main body. The sealing strength increases with increasing internal pressure. Thanks to the sloping partition of the seal, the pressure forces are redirected to both the attachment and the bonnet. The intermediate ring is mounted on the split ring, which is positioned in the attachment. The preloading of the bonnet takes place in the pressureless, cold state via stud bolts with hexagonal nuts. 11

12 Industrietechnik GmbH DRW INDUSTRIETECHNIK GMBH Rohwedderstraße 6, D Dortmund Phone: +49 (0) I Fax: +49 (0) info@drw-armaturen.de

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