Corrosion Resistant Products Ltd
About this exhibitor
CRP are trusted by our customers to provide them with Fluoropolymer PTFE / PFA lined piping and associated equipment manufactured to the highest of standards to provide the longest service life and outperform others. Our PTFE / PFA lined products are used daily in many chemical and pharmaceutical plants around the world to convey and contain highly corrosive media like hydrochloric, sulfuric, nitric acids etc. As well as being very corrosive processes they are often highly toxic too, our HiPerFlon lined products are used in these processes where product integrity is of great importance. Our customers rely on CRP’s expertise in providing consistently high quality lined products manufactured with the latest process knowledge and the best available fluoropolymer materials.
We manufacture all of our PFA and PTFE lined products in North Manchester, UK. We have the very latest thick wall PTFE extrusion and sintering equipment in our new dedicated Paste Extrusion Centre. We have multiple PFA moulding machines and can manufacture PFA lined columns and fittings up to 20”NB.
Products
PTFE Lined Fixed/Rotating Pipe Spool
Paste extruded PTFE lined pipe spools from CRP are your first choice for highly corrosive applications and are lined in high performance fine powder HiPerflon PTFE, which is produced using the paste extrusion process. We can supply virgin and anti-static linings and can also offer a variety of steelwork housings to suit customer’s requirements. For applications where highly permeant media is conveyed, we can supply our Ultra HiPerFlon liner. This liner is extruded using a modified PTFE polymer which has a low void content and offers a longer service life on hot, halogenated services. Pipe spools are available up to 6m long from ½” (DN15) – 6”NB (DN150) and in maximum lengths of 3m from 8” (DN200) – 14”NB (DN350).Pipe spools can be supplied with flanges to all common standards including ASME 150 / DIN PN10/16 etc.
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PFA Moulded Lost Wax Investment Cast Fitting
All CRP fittings are lined with HiPerFlon PFA (up to 11mm / 7/16″ lining thickness) or PTFE fluoropolymer, these linings ensure long service life and exceptional performance in highly corrosive and demanding processes. The majority of the fittings we manufacture are castings produced using the lost wax investment casting method. These are manufactured from carbon steel to ASTM A216 Grade WCB. They have no welds and have heavy wall sections so are very strong compared with their fabricated counterparts or ductile iron castings. They are dimensionally very accurate, and their markings are very easily read for traceability. We manufacture all the standard fittings as found in ASME B16.5 as shown in the dimension table below along with other fittings such as short branch tees, instrument tees, reducing flanges etc. We also supply the full range of fittings for the European market to the DIN 2848 piping standard.We are able to produce custom designs of fittings with special dimensions, flanges, trunnions and supports etc.
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Lined Dip Pipes/Entry Pipes
Dip pipes have a wide array of uses. Typically, they are used to charge a reactor below the liquid level, to extract samples from the reactor as part of one of our sampling systems, or to drain liquid from a vessel without the need of side or bottom outlet.CRP dip pipes are manufactured from a carbon steel fabricated construction with a continuously lined paste extrusion PTFE liner. One length of PTFE tube lines and protects both the inner and outer diameters of the dip pipe. Our advanced manufacturing techniques enable us to produce dip pipes without any pinched or welded ends eliminating a potential weak point completely.We can supply straight and curved dip pipes and with anti-syphon systems.Our entry pipes are used to protect nozzles and introduce liquors into vessels where not much mechanical strength is required.
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PFA Lined Ball Valves
CRP introduced the Atomac range of PFA lined valves into the UK market in 1982. Ever since then we have continued stocking and supplying this increasing range of fluoropolymer lined valves, sight glasses and ancillaries. Now part of the Flowserve Group, the Atomac sub-division goes from strength to strength being the market leader in PFA lined valves and trusted to be the Site Standard in many world class chemical and pharmaceutical processing companies. Their range of ball valves they offer is extensive not only in choice of design but also in size with their largest valve 24”NB (DN600). All the valves are flanged to suit either ASME or DIN specifications.The AKH2 is the mainstay valve being full bore, long pattern, the AKH3 is only available in ASME 150 and is a reduced bore, short pattern. The AKH2A range is limited in its size up to 6”NB ASME 150, however it very popular due to being a low cost alternative with a full bore in a short pattern design.The valve range encompasses several unique features depending on product, like T-slots to lock the PFA liner in place, chevron packing to reduce emissions, metal to metal body seals for robustness inline, cavity filled seats to reduce product hold up, floating ball design to lower cost of actuation etc.
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PFA Lined Check Valves
CRP supply both the Atomac range of ball and check valves and also manufacture our own range of extremely robust lined steel FluoroFlow spring assisted poppet check and swing check valves. The size range spans from ½”NB to 16”NB so we are likely to have a PFA lined check valve in our range to suit your requirement. We also offer combination sightglass / check valves for specialist applications. All valves in our range have PFA moulded linings for compatibility with the most corrosive and toxic chemicals and are all suitable for use up to 200° C / 392°F. Our non-return valves have many uses within process lines, typically to maintain static head on pump discharges, prevent product batch contamination, provide simple nitrogen blanket control etc. We are confident we will have a valve suitable for your application.
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Plug Valves
CRP are the UK distributor for Flowserve’s range of Durco plug valves. We supply both the G4 series of metallic sleeved plug valves and the T4E range of PFA lined plug valves. Plug valves offer exceptional bubble tight shut off, can be adjusted and re-seated inline and have far larger sealing areas than similar sized ball valves. The T4E with its PFA lining is the first choice for extremely corrosive applications, the G4 is available in a wide range of materials from carbon steel to exotic materials. The G4 can be supplied with many enhancements like heating jackets, characterised plugs for flow control, additional stem sealing arrangements for reduced emissions and there is even a 3 way version available for mixing and diverter applications.
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Lined Butterfly Valves
The Durco BTV2000 range of PFA / PTFE lined butterfly valves are very robust to provide long trouble free operation. The valves are manufactured by Flowserve who were the first company to introduce fluoropolymer lined butterfly valves to our customers. The body liner is manufactured from a solid billet of PTFE which is machined to shape. All wetted parts are PTFE / PFA offering outstanding corrosion resistance suitable for use for example with sulphuric or hydrochloric acids. The valve is available with a wafer pattern body, a lugged body with threaded bolt holes and a long pattern body to prevent disc fouling on heavy wall lined piping.
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Kammer Lined Control Valves
Control valves are used to very accurately throttle the flow of gas or liquid in a pipeline. They are used as part of a larger control system to maintain a desired characteristic, be it a set temperature, product mix ratio, pressure etc. The control valve is operated by a pneumatic actuator that in turn is controlled by some form of feedback loop, for example a simple pressure or temperature transponder to a complex site wide integrated computerised control system.CRP offer the Kammer control valve which has a thick walled PFA lined body providing the best all round corrosion protection, they are lined in the same facility as the Atomac ball valves in Ahaus Germany so have a great heritage utilising the latest high quality fluoropolymer moulding processes. Where there is a concern of static build up within the valves, the lining can be supplied in static dissipating PFA.Each control valve process application would typically have a minimum and maximum flow requirement, the range of Kammer control valves are available with a wide choice of ‘trims’ to provide the required flow control. By carefully selecting the right port and spindle design the right flow characteristics can be achieved. Several different trims are available for each size of valve.The Kammer control valve is linear in operation based on the globe valve principle where the stem is lifted or lowered into the seat to allow more or less flow.The stem is sealed using a specially designed modified PTFE bellows and is TA-Luft certified – ISO 15848 part 1 / Class B-C. Each bellows seal is tested at 120 degrees C to 6 barg to prove integrity.The valve size range starts at ½”NB / DN15 up to 6”NB / DN150 and is available with ASME 150 or DIN PN10/16 flanges. The valve has machined ‘T’ slots within the body anchoring the lining to the casting and so is suitable for use from full vacuum to 16 barg whilst the temperature range is -29 to + 200° C. (Please consult the temperature / pressure chart for more info).
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High Performance PTFE Bellows
The FluoroFlow Bellows (FFB) range has been engineered over 40 years to compensate for thermal expansion in pipelines, for the protection of fragile process equipment such as graphite, plastic or glass and the isolation of vibration hazards. PTFE bellows come into their own for corrosive, high purity or hot applications. CRP has some unique manufacturing processes based upon the use of paste extruded PTFE, and a proprietary convolution process to secure a uniform wall thickness and highest pressure-temperature ratings in the market. These have been independently tested by the internationally recognised safety and quality group TÜV-Germany undertaking innovative long term (one year) internal pressure creep testing.The Teflon® expansion joints range covers 22 sizes from DN25/1” to DN1050/42”. They are available with flanges according to ASME, DIN and JIS standard, as well as with individual special dimensions. CRP manufactures these bellows in both virgin and static dissipating PTFE. FluoroFlow PTFE compensators in sizes DN25 / 1”NB up to DN250 / 10”NB are available in extra heavy duty only. For larger diameters there is a choice of two wall thicknesses—a heavy duty (HD) and extra heavy duty (XHD). The bellows can be manufactured with 2 to 10 convolutions depending upon the size. We are able to produce custom bellows with flanges of differing nominal bores, lateral only movements etc .We offer quick leadtimes for the smaller sizes carrying some finished stock and component parts for others. Flanges can be supplied in carbon steel or stainless steel, ASME 150 and DIN PN10 / 16 being most common.
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PTFE/PFA Lined Columns
CRP design and manufacture absorption and distillation columns lined in HiPerflon® PTFE / PFA. The reliability of such columns is reliant on using the best lining materials with no seams or welds which are often weak points in a construction. CRP construct columns from paste extruded PTFE liners with heavy walls up to 10mm / 7/16″ thick without seams or welds. Where nozzles are required we produce these sections with a PFA moulded homogeneous fluoropolymer lining so that extra bolted on branches are not required. The PFA lining can be up to 12mm / 1/2″ thick depending on nominal bore. We offer lined columns from 8”NB DN200) up to 20”NB (DN500), the steelwork is typically manufactured from carbon steel pipe to ASTM A106 and flanges to ASTM A105. The design standard can be to: ASME B31.3 – Process Piping ASME VIII Division 1 – Boiler and Pressure Vessel Codes PD 5500 which has replaced BS 5500 – Unfired and Fusion Welded Pressure Vessels EN 13445 – Unfired Pressure VesselsWe are also able to offer columns with stainless steel or low temperature carbon steel housings.
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Liquid & Powder Sampling
CRP design and manufacture a wide range of Sampling Valves and Systems for sampling chemicals. From simple inline samplers, to recirculating vessel sampling systems and powder samplers. All providing safe sample dispensing of potentially toxic or corrosive media, safeguarding the operator and the environment.
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Sight Glasses & Gauges
CRP supply a wide range of high integrity Sight Glasses, with Bulls Eye and Tubular types manufactured with Borosilicate Glass along with PFA lined housings providing high corrosion resistance and long service life, whilst still allowing the very corrosive medias travelling through them to be safely viewed by our customers. To compliment the sight glasses we also offer level gauges providing a safe means to view the liquid level of storage tanks again lined in PFA with a robust outer stainless steel housing.
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Safety Shields
CRP’s PTFE lined products are mainly used to convey very corrosive products, safety regulations stipulate that consideration must be made for reducing the effects of leaks to the environment and personnel, CRP safety shields are a recommended addition to any piping system and should be considered in any site safety reviews. We offer shields for flanges, bellows, valves and to protect from spray out of other inline process equipment.
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Gaskets
We offer two types of gaskets, both manufactured from PTFE providing excellent sealing and performance in highly corrosive media.The ToughGask gasket has a perforated stainless steel core completely encapsulated with a moulded PTFE body. They are very robust and are reusable and best suited to metallic flange joints.The FluoroGask gasket is produced from pre-compressed expanded PTFE and is FDA approved and often used within Pharmaceutical plants.
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Corrosion Resistant Heat Exchangers
CRP offer heat exchangers from SGL, depending on the application we can supply Graphite Block Heat Exchangers, Graphite Shell and Tube Heat Exchangers or Silicon Carbide Shell and Tube Heat Exchangers. All designs offer near universal corrosion resistance. SGL have supplied thousands of Heat Exchangers and we are very pleased to be able to offer these to our customers.
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Lined Strainers
We supply the Flowserve range of Atomac Y-type strainers. Like all the products in the Atomac range the strainers are manufactured with a PFA lining to provide optimum performance in highly corrosive processes. The strainer has a PTFE basket, which as a standard is provided with a 300 micron ECTFE mesh to prevent particles flowing past the strainer. Other sizes of mesh are available upon request to suit your application.
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