Author Archives: Web Team

Pump Group Use Belzona to Repair 12m Screw Feeder

Pump Supply & Repair Group arranged transport of the 12m Screw Feeder from an EON Power Station Site. The unit was taken out of service because of extensive wear to flights & central tube. Non Destructive Testing was carried out on the flights, the shaft and the teeth. Ultra sonic testing determined the thickness of the worn 304 Stainless Steel Lining, and MPI Testing (Magnetic Particle Inspection) was used to identify cracks in the surface. In total, 326 faults were detected that required welding along the face of the screw, and in several areas the steel lining had worn down to less than 3mm thickness. The cracks were welded using hard face SS2333 rods to prevent future cracking. The teeth were substantially worn and several teeth were missing. All the teeth were removed and new teeth were welded on with 304 SS rods. The teeth were hard face welded on 2 sides using MAC Hard E306 rods to further increase their abrasive resistance.   The 10 ton screw was then grit blasted to SA 2.5 @ 75 microns to ensure correct surface profile for Belzona application.  Belzona 1812 Ceramic Carbide was applied to 15mm on the wear pads on the flights to build up to original thickness. Belzona 1812 was then applied at a thickness of 4mm to the shaft and all working faces of the screw & flights. The total job turnaround of the screw was 10 weeks from the go-ahead to completion. For more information on how Pump Supply & Repair Group can utilise our Belzona facilities and expertise, please contact our Operations Director, Martin Cooper on 0161 864 4678 or via email at mcooper@pumpgroup.co.uk

Posted in Featured Belzona, Latest News, News

Liquid Ring Vacuum Pump Repair – Food Industry

A team of our Site Services engineers attended site and carried out an endoscopic inspection on the Vacuum Pump.  After reporting on the findings, the decision was made for our site team to remove the unit and transport it back to our workshop facility for disassembly and further inspection. Upon stripping, it became apparent that there was substantial damage to the internals of the pump. The endplates and rotor were scored heavily. The gland seals were worn and the gland locations needed rebuilding. The bearings were stripped and condemned because of contamination. When measured, both bearing housings were oval shaped and outside tolerance. The pulley was found to be in poor condition and we recommended fitting new. The packing sleeves were grit blasted and rebuilt with Belzona 1131 Bearing Metal. We machined the rotor, the endplates, the body length and O-rings were machined to maintain the OEM tolerances. The damaged gland areas were rebuilt with Belzona 1131 and machined to size. The bearing housings were metal-sprayed and new bearings & consumables were supplied. A new pulley was supplied and fitted to prevent belt slippage.  The pump was assembled vertically to achieve correct clearance and then pressure tested. The unit was then fully performance tested in our test cell, and at 480mbar the pump achieved 9400m3/hr discharge volume.  The Pump was spray painted, and underwent final inspection prior to being transported back to site by our transport. Our site service engineers then installed and commissioned the unit. The unit was removed, refurbished, tested and installed and commissioned all within the time-frame allowed by the customer and within budget. As Rotating Equipment Specialists, Pump Supply & Repair Group is the one stop shop for all of your mechanical needs. For more information on how PSRG can assist you in your operational requirements, please contact our Operations Director, Martin Cooper at mcooper@pumpgroup.co.uk or on 0161 864 4678.

Posted in Featured Repairs, Latest News, News

Belzona Protects Trench From Acid Attack

The customer was experiencing problems within a 40 metre long trench near a tanker off-loading area. Tankers carrying both Sulphuric and Nitric acid were being emptied regularly, with small amounts of acid being spilled each time. This acid had corroded through large areas of the concrete floor and trench, and there was a danger of the acid corroding through the remaining concrete and contaminating the underlying soil & water table. One of our specialist engineers attended site to survey the problem, and concluded that the extremely hard wearing yet versatile range of Belzona Polymeric Coatings would be ideal for this scenario.  The ability to apply the Belzona polymer coatings cold and the fast curing properties were ideal for this situation. Once given the instruction to proceed by the customer and all of the relevant Risk Assessments and Method Statements had been approved, a team of our factory trained Belzona approved technicians attended site to carry out the repair. They cleaned the concrete using high pressure steam cleaners, removing all traces of acids and oils to ensure the Belzona product bonded to the concrete substrate. First the technicians used Belzona 4141 Magma Build, a concrete specific repair polymer, to rebuild the concrete back to the original profile, then applied 2 coats of 4311 Magma CR1, which is a high performance coating designed to withstand the most aggressive chemical attacks. The Belzona process took our 2 engineers 8 days from start to finish, which is a lesser period than how long it would have taken to concrete the damaged areas, which would have also needed 28 days to cure. The 4311 Magma CR1 has many times the chemical resistance of concrete, meaning that the Belzona repair will far outlast any traditional repairs that could have been used. For more information on how Pump Supply & Repair Group can utilise Belzona Coatings both in our workshop and on-site, please contact our Site Services Manager, Charles Lambley, on 07887 721900, or email him on clambley@pumpgroup.co.uk

Posted in Featured Belzona, Featured Site Work, Latest News, News Tagged , , , , , , , , ,

Protected: Screw Feeder Repaired With Belzona

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On Site Equipment Installation

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Pump Supply & Repair Group are on the move

This month sees the next exciting stage of growth for our Group, we have now moved to our new purpose built premises, CP House, in Trafford Park, Manchester, doubling our premises space to 32,000 ft2.

Posted in Homepaged Feature Article, Latest News, News

Major Pump Sales

One of the two SPP KP15 Cooling Water Booster Pumps supplied in July to a Pharmaceutical Company. The 8″ Cast Iron End Suction pumps have a designed duty of 384 m3/hr @ 30m: they were fitted with EFF1 Brook Crompton Motors and spark proof coupling guards. Pump Supply & Repair Group worked closely with the end user and the Project Consultants to ensure that all aspects of the process data sheets were met. The SPP pumps were factory performance tested and both pumps achieved in excess of 86% efficiency ensuring that the customer benefits from year on year energy savings. Sales Department Email: sales@pumpgroup.co.uk Direct No: 0161 864 5179

Posted in Latest News

Belzona Application – Venturi Scrubber

Pump Supply & Repair Group has recently undertaken the Belzona application of a Venturi Acid Neutralisation Scrubber. Previously the scrubber had been manufactured from Hastelloy C22 material which was expensive to manufacture and was also still susceptible to corrosion from the media. The customer wanted to change the substrate to carbon steel and apply a Belzona polymeric coating to protect against acid corrosion. The coating selected not only had to withstand the corrosion properties of the acid but also had to withstand high operating temperature of up to 100°C. While protective coatings can be successfully used at moderate temperatures, migration through the coating readily occurs at temperatures above 90°C. This gives rise to blistering and premature breakdown. We proposed to apply Belzona 1392 ceramic HT metal to the scrubber by combing a unique blend of inorganic erosion resistant reinforcing agents with a radically new densely cross linked heat resistant polymer. Belzona 1392 provides excellent protection against erosion and corrosion in high temperature environments which has a temperature range -40°C (-40°F) to 200°C (392°F) and a constant immersion temperature of 120°C (248°F). The internal of the unit, external of the nozzles and also all internal welds were grit blasted. All wetted parts were then coated with a two coat Belzona 1392 HT Metal. On completion all coated areas were wet sponge tested to check for defects. The external of the scrubber was spray painted hammerite grey prior to being packed ready for dispatch. The above unit was carried out during the customers scheduled breakdown period and was carried out over a five day period. The scrubber is now in operation and under trials. Completion of coating / Prior to despatch Quotations Estimator Email: ssmith@pumpgroup.co.uk Direct No: 0161 864 5176

Posted in Latest News

Long & Short term contracts

Pump Group supplies Contract Labour for all types of on-site rotating equipment

Posted in Featured Contract Labour

Authorised Coating Centre

We are pleased to announce we have recently been appointed the U.K.’s first Belzona Authorised Coating Centre

Posted in Featured Belzona