May we take this opportunity to introduce you to Alliance Valves & Piping Supplies Ltd. We are a leading Purchasing, Supply & Contract Management Company Accredited to the ISO 9001 2000 Quality Standard, within the Oilfield & Petrochemical sector.

We are Agents and Stockholders for Worldwide Manufacturers of Process and Instrumentation Valves, Fittings & Associated Equipment in Duplex, Super Duplex & special alloys.

Our portfolio includes large contract/project management to single item supply of equipment, especially in Duplex, Super Duplex & special alloys, such as:

• Valves - Instrumentation; including Ball Valves, Needle Valves, Double Block & Bleed Valves, Monoflanges & Sub-sea Valves etc.
• Valves - Process; including Gate Valves, Globe Valves, Butterfly Valves, Check Valves etc., from sizes 1/4” to 144” in Steel, Stainless Steel and Exotic Alloys.
• Pipe & Tube; 1/8” to 56” in Steel, Stainless Steel and Exotic Alloys.
  • Seamless & Welded Casing, Tubing, Screens in Carbon, Alloy, Stainless & CRA Steels
  • Seamless and Welded Boiler Tubes and piping components in Carbon, Alloy and Stainless steel
  • Seamless and Welded Stainless Steel Tubes for Refinery & Petrochemicals
  • Fin Tubes, U-Bends, Special Forging and castings
  • High Alloy Centrifugal cast heat resistant Reformer Tubes and complete Assemblies
  • Hollow Sections and Precision Tubes for various fields
  • Boiler special Rods & Flats in all sizes
  • ERW Pipe (Black & G.I) IS 1239 & IS 3589
  • ERW Boiler Tubes/Air Heater Tubes as per BS 3059 & BS 1775
• Sheets; (CRCA/HR/GI/ Corrugated), Angles, Channels, Beams, Flats
• Fittings; (Threaded, Weld Connections and Compression) in Steel, Stainless Steel and Exotic Alloys.
• Flanges; 1/2” to 56” in all variations in Steel, Stainless Steel and Exotic Alloys. Full line of Flanges including of Forged, all types: ANSI, API, BS, DIN, MSS, AWWA.
• Pumps; A full line of pumps including Vacuum, Air, Gas, Liquid, Metering, Screw, Twin Screw, Diaphragm, Centrifugal, Gear, Metering, Hygienic, Drum, Paddle, Sea water, Water treatment, Submersible, Deep well, Brackish water, Lifting, Surface, hand, Piston, Multi-Stage, Mono-Block, Non-Clogging Horizontal, Non-Clogging, Vertical, Rotary, Positive Displacement, Plunger etc.
• Filters; A full line of Filters including In-Line, Air, Oil, Diesel Fuel, Hydraulic, Liquid, Waste water, Water, Chemical, Automotive, Sand, bag, Cartridge, Active, Carbon Removal, Ceramic, Coalescing, Compressed Air, Continuous, Cooling System, Dust, Felt, Oil Mist, Disc, Drum, Foam etc.
• Chemical Injection Systems, Grease Skids, Control Systems etc.
• Flow, Measurement, Protection & Accessory equipments; Full line of Transmitters, Positioners, Calibrators, Gauges, Transducers, Indicators, Sensors, Flowmeters, Liquid Level instruments, Analysers, Accelerometers, Flow Monitors, Excess Flow Valves, Regulators, Condensate Pots, Sampling Cylinders, Air distribution Manifolds, Gauge Syphons, Gauge Snubbers, Probes, Orifice Plates, Level Switches.
• Compressors, Winches, Oscilloscopes, Voltage Sources, Clock gauges, Noise Level meters, Doppler Flow meters, Deadweight testers, Standard test gauges etc.
• Nuts and Bolts; Full range of Nuts & Bolts.
• Gaskets; Full range of Gaskets.
• Safety Equipment, Solvents, Adhesives etc.
• Chemicals, Corrosion Inhibitors etc.

Within our capabilities is the facility to supply Machined Products both standard and to Customer Drawings in a wide range of materials including exotic alloys.

With worldwide contacts and sources of supply the combination of excellent Pricing, Deliveries, Quality & Customer Service are at a premium.

With the knowledge & experience of the employees the service and technical support we offer are of the highest caliber.

We would welcome the opportunity to assist your esteemed Company where you can experience our capabilities for yourself and can assure you of an excellent service always.

To view a small selection of the products we offer please visit our product catalogue.

There are many products not detailed that you may require which we are able to offer. Please call our sales staff on +44 (0) 1484 401880 who will be able to assist.

Duplex

Duplex is an austenitic ferritic Iron Chromium-Nickel alloy with Molybdenim addition. It has good resitance to pitting, a high tensile strength and higher resistance to stress corrosion cracking at moderate temperatures to that of conventional austenitic stainless steels.

Duplex is a material having an approximate equal amount of austenite and ferrite. These combine excellent corrosion resistance with high strength. Mechanical properties are approximately double those of singular austenitic steel and resistance to stress corrosion cracking is superior to type 316 stainless steel in chloride solutions. Duplex material has a ductile / brittle transition at approximately -50°C. High temperature use is usually restricted to a maximum temperature of 300°C for indefinite use due to embrittlement. Read the technical details of Duplex UNS S31803.

Super Duplex

Super Duplex is an austenitic ferritic Iron Chromium-Nickel alloy with Molybdenim addition. It has good resitance to pitting, a high tensile strength and higher resistance to stress corrosion cracking at moderate temperatures to that of conventional austenitic stainless steels.

Super Duplex is a material having an approximate equal amount of austenite and ferrite. These combine excellent corrosion resistance with high strength. Mechanical properties are approximately double those of singular austenitic steel and resistance to stress corrosion cracking is superior to type 316 stainless steel in chloride solutions. Super Duplex material has a ductile / brittle transition at approximately -50°C. High temperature use is usually restricted to a maximum temperature of 300°C for indefinite use due to embrittlement. Read the technical details of Super Duplex UNS S32550, Super Duplex UNS S32750 and Super Duplex UNS S32760.