About us

John Mayes Engineers

John Mayes Engineers have been a family run business since their conception in 1959. A small company with a long serving work force, they have steadily grown into an important supplier for the Petro-chemical, process, energy and allied industries. They were one of the fore-runners to stock and manufacture fittings in chrome-moly materials such as F5, F9, F11 and F22. Continued diversity in both materials and products manufactured has ensured continuity with customers – new and old.

“Customer service is our main focus. It is our philosophy to deliver exactly what our customers need, exactly when they need it. If a customer needs an item tomorrow, it’s no good telling them delivery is going to be a week. We supply components into demanding markets; and as such, delivery is as critical as the quality, price and materials we use. As a consequence, we find that we are constantly juggling jobs around in order to satisfy our customer needs. After all, we can only sell an item when a customer wants to buy it.” - John Mayes

British Standard (BS) - Pipe Fittings Chrome Molybdenum - Pipe Fittings CNC - Turning, Duplex CNC - Turning, Stainless Steel Components Connectors - Stainless Steel Cupro Nickel - Fittings Nickel Alloy - Fittings, Flanges Pipe Duplex Elbows Pipe Duplex Reducers Pipe Fittings - 3000 LB Stainless Steel Pipe Fittings - Branch Outlet, Reinforced Welded Pipe Fittings - Carbon Steel Pipe Fittings - Check Valve Fitting Pipe Fittings - Copper Nickel Pipe Fittings - Duplex Pipe Fittings - Exporters Pipe Fittings - Forged Pipe Fittings - High Pressure Pipe Fittings - Hydraulic Pipe Fittings - National Pipe Thread (NPT) Pipe Fittings - Nickel Alloy Pipe Fittings - Reducing Connectors Pipe Fittings - Small Bore Pipe Fittings - Stainless Steel Pipe Fittings - Steel Pipe Fittings - Stockholders Pipe Fittings - Super Duplex Pipe Fittings - Tees, Duplex Pipe Fittings - Titanium Pipe Flange Outlets Pipe Hexagonal Bushes Pipe Hexagonal Nipples Pipe Joints - Fittings Pipe Unions - Stainless Steel Pipeline - Fittings, Stockholders Pipeline Fittings - Couplings Pipes - Corrosion Resistant Pipes - Stainless Steel Plastic - Pipe, Tubing - Fittings and Accessories Precision Turned Parts - Non Ferrous Materials Precision Turned Parts - Stainless Steel Stainless Steel - ANSI Pipe And Fittings Stainless Steel - Nominal Bore Fittings Stainless Steel - NPT Fittings Stainless Steel - Pipe Fittings Stainless Steel - Pipe Tube Fittings Stainless Steel Components - Chemical Industry Stainless Steel Components - Petrochemical Industry Titanium - Machinists Tube Fittings - Stainless Steel


Products/Services

1 9000lb SW 90 deg Elbow F304/304L

1 9000lb SW 90 deg Elbow F304/304L

1 9000lb SW 90 deg Elbow F304/304L

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1 Screwed 45 Deg Forging A105/LF2

1 Screwed 45 Deg Forging A105/LF2

1 Screwed 45 Deg Forging A105/LF2

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1 Screwed 90 Deg Forging A105/LF2

1 Screwed 90 Deg Forging A105/LF2

1 Screwed 90 Deg Forging A105/LF2

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1 screwed Tee Forging A105/LF2

1 screwed Tee Forging A105/LF2

1 screwed Tee Forging A105/LF2

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1" (3M/6M) BSPP Hex Head Plug 17-4PH

1" (3M/6M) BSPP Hex Head Plug 17-4PH

1" (3M/6M) BSPP Hex Head Plug 17-4PH

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1" (3M/6M) BSPP Hex Head Plug 304/304L Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 304/304L Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 304/304L Stainless Steel

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1" (3M/6M) BSPP Hex Head Plug 321/321H Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 321/321H Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 321/321H Stainless Steel

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1" (3M/6M) BSPP Hex Head Plug 347 Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 347 Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 347 Stainless Steel

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1" (3M/6M) BSPP Hex Head Plug 410 Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 410 Stainless Steel

1" (3M/6M) BSPP Hex Head Plug 410 Stainless Steel

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1" (3M/6M) BSPP Hex Head Plug 90/10

1" (3M/6M) BSPP Hex Head Plug 90/10

1" (3M/6M) BSPP Hex Head Plug 90/10

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1" (3M/6M) BSPP Hex Head Plug Acetyl

1" (3M/6M) BSPP Hex Head Plug Acetyl

1" (3M/6M) BSPP Hex Head Plug Acetyl

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1" (3M/6M) BSPP Hex Head Plug Alloy 400

1" (3M/6M) BSPP Hex Head Plug Alloy 400

1" (3M/6M) BSPP Hex Head Plug Alloy 400

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1" (3M/6M) BSPP Hex Head Plug Alloy 625

1" (3M/6M) BSPP Hex Head Plug Alloy 625

1" (3M/6M) BSPP Hex Head Plug Alloy 625

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1" (3M/6M) BSPP Hex Head Plug Alloy 825

1" (3M/6M) BSPP Hex Head Plug Alloy 825

1" (3M/6M) BSPP Hex Head Plug Alloy 825

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1" (3M/6M) BSPP Hex Head Plug F11 Class2

1" (3M/6M) BSPP Hex Head Plug F11 Class2

1" (3M/6M) BSPP Hex Head Plug F11 Class2

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1" (3M/6M) BSPP Hex Head Plug F22

1" (3M/6M) BSPP Hex Head Plug F22

1" (3M/6M) BSPP Hex Head Plug F22

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1" (3M/6M) BSPP Hex Head Plug F44

1" (3M/6M) BSPP Hex Head Plug F44

1" (3M/6M) BSPP Hex Head Plug F44

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1" (3M/6M) BSPP Hex Head Plug F5

1" (3M/6M) BSPP Hex Head Plug F5

1" (3M/6M) BSPP Hex Head Plug F5

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1" (3M/6M) BSPP Hex Head Plug F51 Duplex

1" (3M/6M) BSPP Hex Head Plug F51 Duplex

1" (3M/6M) BSPP Hex Head Plug F51 Duplex

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1" (3M/6M) BSPP Hex Head Plug F53 Super Duplex

1" (3M/6M) BSPP Hex Head Plug F53 Super Duplex

1" (3M/6M) BSPP Hex Head Plug F53 Super Duplex

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1" (3M/6M) BSPP Hex Head Plug F55 Super Duplex

1" (3M/6M) BSPP Hex Head Plug F55 Super Duplex

1" (3M/6M) BSPP Hex Head Plug F55 Super Duplex

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1" (3M/6M) BSPP Hex Head Plug F9

1" (3M/6M) BSPP Hex Head Plug F9

1" (3M/6M) BSPP Hex Head Plug F9

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1" (3M/6M) BSPP Hex Head Plug F91

1" (3M/6M) BSPP Hex Head Plug F91

1" (3M/6M) BSPP Hex Head Plug F91

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1" (3M/6M) BSPP Hex Head Plug Hastelloy C276

1" (3M/6M) BSPP Hex Head Plug Hastelloy C276

1" (3M/6M) BSPP Hex Head Plug Hastelloy C276

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1" (3M/6M) BSPP Plug 316/316L Stainless Steel

1" (3M/6M) BSPP Plug 316/316L Stainless Steel

1" (3M/6M) BSPP Plug 316/316L Stainless Steel

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1" (3M/6M) BSPP Plug 316/316L Stainless Steel

1" (3M/6M) BSPP Plug 316/316L Stainless Steel

1" (3M/6M) BSPP Plug 316/316L Stainless Steel

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1" (3M/6M) BSPP Round Head Plug 17-4PH

1" (3M/6M) BSPP Round Head Plug 17-4PH

1" (3M/6M) BSPP Round Head Plug 17-4PH

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1" (3M/6M) BSPP Round Head Plug 304/304L Stainless Steel

1" (3M/6M) BSPP Round Head Plug 304/304L Stainless Steel

1" (3M/6M) BSPP Round Head Plug 304/304L Stainless Steel

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1" (3M/6M) BSPP Round Head Plug 321/321H Stainless Steel

1" (3M/6M) BSPP Round Head Plug 321/321H Stainless Steel

1" (3M/6M) BSPP Round Head Plug 321/321H Stainless Steel

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1" (3M/6M) BSPP Round Head Plug 347 Stainless Steel

1" (3M/6M) BSPP Round Head Plug 347 Stainless Steel

1" (3M/6M) BSPP Round Head Plug 347 Stainless Steel

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John Mayes Engineers

  • Roman Way
  • Fison Way Industrial Estate
  • Thetford
  • Norfolk
  • IP24 1XB

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