RELIABLEDURABLESAFE

Industrietechnik GmbH

HIGH-PRESSURE- GATE VALVES | SWING CHECK VALVES

K2000R®K2000RK2000R®®

PERMADOR®

PARADOR®

K2000R®PARADOR® PERMADOR®

INTRODUCTION TO THE COMPANY

DRW INDUSTRIETECHNIK

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DRW INDUSTRIETECHNIK GMBHReliable. Durable. Safe.

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 1996. Our customers include many well-known international companies.

As a top-quality manufacturer, we produce high-pres-sure 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 sup-plier 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 in-dustries 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 inter-national manufacturers.

DRW INDUSTRIETECHNIK GMBH Dortmund site

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INTRODUCTION TO THE COMPANY

DRW INDUSTRIETECHNIK

THE DRW GROUPWith 4 powerful units.

is your specialist for large-scale projects.

When it comes to knife gate valves, Geier Interna-tional is your ideal special-ist. With its many years of experience with valves for the water and wastewater industry, this high-per-formance company will always come up with an excellent, practical solu-tion for your project.

is your powerful partner for high-quali ty valves from all well-known manufacturers.

With its extensive ware-house capacity, DRW In-dustrietechnik can quickly supply all standard valves from domestic and inter-national manufacturers.

is your top-quali ty producer of safe, high-class industrial valves.

The high-pressure gate valves and check valves produced by DRW Arma-turentechnik provide max-imum reliability, safety and durability. That’s quality made in Germany!

We are a technical services company for whom only the highest standard of service is good enough.

That is why precision and quality are top priority in our company. We pride ourselves in the excellence of every service we offer.

GROUP

From the product ion of top-quali ty valves to comprehensive retail and maintenance services, the DRW Group offers unique all-round service from a single source.

COMPREHENSIVE SERVICE

DRW INDUSTRIETECHNIK

SHUTTING OFF. REGULATING. DISTRIBUTING. Powerful solutions for industry.

We manufacture high-pressure gate valves and check valves, glove valves, ball valves, strainers and butterfl y valves that you can rely on.As a producer, we have the expertise to always provide excellent solutions for the most demanding applica-tions. We help to ensure that your operations run suc-cessfully 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 fulfi l 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 fl exibility.

No matter whether it‘s special valves produced by our-selves, or brands from other well-known manufactur-ers, we always provide excellent, certifi ed quality.We have been operating in accordance with the quality management system DIN EN ISO 9001:2008 since 1996, and guarantee the fulfi lment of the European Pressure Equipment Directive PED 97/23/EG, and all current na-tional and international regulations and standards.

All our national and international suppliers are also certifi ed on a regular basis.

QUALITYAlways safe.

Always reliable.

PRODUCTION Top-quality valves.

From experts. For experts.

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 fl exibility.

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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 neces-sary 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, pro-ducing 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.

COMPREHENSIVE SERVICE

DRW INDUSTRIETECHNIK

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 man-ufacturers, we can also provide tailor-made solutions for the most specific individual requirements in a short space of time.

MAINTENANCE, SERVICE AND REPAIRSProfessional services – even in emergencies.

WAREHOUSEWe always stock perfect solutions.

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PERMADOR® / PARADOR®

HIGH PRESSURE GATE VALVES

DRW Armaturentechnik GmbHD – 44369 Dortmund

PERMADOR®

Description and properties

Nominal diameters

DN 50 – 600,NPS 2“ – 24“

Pressure range

PN 160 – 630,CLASS 900 - 4500

Applications

WATER, STEAM,GAS, OIL

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Description and properties

Nominal diameters Nominal diameters

Body material

FORGED STEEL

The Babcock PERMADOR® and PARADOR® range is long established as a valve with high integrity and long service life. Now exclusively man-ufactured 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 entire-ly within Germany and Europe and is the best choice for water, power and petrochem applica-tions where a high spec-ifi cation shut-off valve is required.

®

PERMADOR® / PARADOR®

HIGH PRESSURE GATE VALVES

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PERMADOR®

Description and properties

Stem sealing Stem

Guiding of the shut-off fittings The body seat ring and the guiding in the shut-off fittings form a single unit. This is why no guide rails are necessary here. The integrity of the body is not compromised.

GlandThe gland packing con-sists of individual pre-pressed open rings. The following materials are used according to the application area: Pure graphite and PTFE.

StemThe hammer head stem is forged from a corro-sion-resistant chrome steel in one piece. The stem shaft is burnished. The trapezoidal 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 us-ing 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.

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 surfacesStellite 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.

PERMADOR®

Body seat ring

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 sloping

partition, the pressure forces are redirected to both the body wall and the bonnet.

Gasket

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.

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In a closed PERMADOR® gate valve, heating of fl uid enclosed in the third chamber can cause undue pressure in the body (fi g. 1). The resulting pres-sure 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 fi g. 2-5).

In lines that fl ow in only one direction. Bore of the wedge on the inlet side or one-sided pressure relief bore in the seat ring (fi g. 2).

Installation of a equalising pipe from the third chamber to the pressure side of the valve (fi g. 3).

Installation of a bypass for the third chamber using bypass valves (fi g. 4).

Installation of safety valve with bursting disc in lines that fl ow alternately in both directions, (fi g. 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.

Fig. 3 Equalising pipe from the third chamber to side exposed to the pressure.

Fig. 4 Bypassing thethird chamber.

Fig. 5 Model with safety valve.

PERMADOR®

Overpressure safety devices

PERMADOR® / PARADOR®

HIGH PRESSURE GATE VALVES

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PARADOR®

Description and properties

Stem sealing Stem

Guiding of the shut-off fittings The body seat ring and the guiding in the shut-off fittings form a single unit. This is why no guide rails are necessary here. The integrity of the body is not compromised.

GlandThe gland packing con-sists of individual pre-pressed open rings. The following materials are used according to the application area: Pure graphite and PTFE.

StemThe hammer head stem forged from a corro-sion-resistant chrome steel in one piece. The stem shaft is bur-nished. The trapezoidal screw thread is produced

using special whirling machines with maximum preci-sion and surface quality.

Stem bearing The stem force is captured via the threaded bushing us-ing 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.

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 surfacesStellite 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.

PARADOR®

Body seat ring

Pressure sealing bonnetThe 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 sloping

partition, the pressure forces are redirected to both the body wall and the bonnet.

Gasket

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 surfac-es 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 forcesThe 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 posi-tions of the shut-off device are possible.

PERMADOR® / PARADOR®

HIGH PRESSURE GATE VALVES

K2000R®

SWING CHECK VALVE

K2000R®

SWING CHECK VALVE

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DRW Armaturentechnik GmbHD – 44369 Dortmund

Nominal diameters

DN 50 – 600 mmNPS 2“ – 24“

Pressure range

PN 160 – 630,CLASS 900 - 4500

Body material

FORGED STEEL

Applications

WATER, STEAM,GAS, OIL

®

The Babcock K2000R® range is long established as a swing check valve with high integrity and long service life. Now ex-clusively manufactured by DRW, this range of swing check valve has been brought in to compliance with the latest EU stand-ards. It is being manu-factured entirely within Germany and Europe and is the best choice for wa-ter, power and petrochem applications where a high specifi cation check valve is required.

K2000R®

SWING CHECK VALVE

Pressure sealing bonnetThe 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 sloping partition, the pres-

Bearing pinThe corrosion-resist-ant bearing pin for the sealing plate is secured using a u-shaped brack-et, and the bracket is clamped onto the bonnet with screws. The screws

are doubly secured and specially designed to prevent loosening and falling out.

General informationK2000R® 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 fl ow medium. The degree of opening is deter-mined by the throughput rate. In the fully open position, the sealing plate opens suffi ciently 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 surfacesThe sealing surfaces on the body seal and the sealing plate are armoured and guarantee high wear resist-ance. The lapped surfaces ensure reliable sealing.

Bearing pinThe bearing pin is made of wear-resistant, corro-sion-resistant chrome steel. The shaft is polished.

Pressure sealing bonnetA 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 pres-sure 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 pressure-less, cold state via stud bolts with hexagonal nuts.

CONSTRUCTIVEDesign K2000R®

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Bearing pinBonnet

sure forces are redirected to both the body wall and the bonnet.

DRW INDUSTRIETECHNIK GMBHRohwedderstraße 6, D-44369 DortmundPhone: +49 (0)231-92 71 44-0 I Fax: +49 (0)231-92 71 44-44 E-mail: info@drw-armaturen.de | www.drw-armaturen.deIndustrietechnik GmbH