Since 1962 M&J Valve has been a key technology partner to companies across the globe that are involved in the storage, transportation, production or processing of gases and liquids. Attending to the exacting expectations of the oil/gas, petrochemical and chemical sectors, we supply our customers with the top quality, inherently-safe flow control and surge relief solutions they need to raise their productivity and avoid the possibility of causing environmental damage.

Featured within our portfolio are control valves, gate valves, check valves, diverter valves, bi-directional ball valves and surge valves, plus flow loops for valve testing purposes. Our valves make use of an array of different shut-off mechanisms (slab, piston, swing, rotary and axial) to reflect the breadth of application characteristics presented. They are suitable for incorporation into both overland and subsea pipelines, along with storage facilities, offshore platforms and pumping stations. Thanks to the high grade engineering at their foundation, these valves can deal with a broad range of different pressure conditions and a large number of cycles, as well as offering ease of use, ongoing reliable operation and prolonged seal life.


The combination of engineering excellence, a deep understanding of process applications and automation expertise, provide an unrivalled range of service solutions for M&J Valve equipment, providing a full range of valve and wellhead service, repair, remanufacturing and inventory management of customer assets for the pipeline, petrochemical, hydrocarbon storage well and geothermal industries. Celeros Flow Technology specializes in reconditioning of valves from all manufacturers, turnkey valve field services, and repairing to 6A/6D standards. Celeros Flow Technology offers a full range of after-sales products to ensure that the original equipment continues to operate at its maximum performance.

Our range of services include:

  • Actuator mounting and testing
  • Conversion of valves from one product to another (crude to product)
  • Design and manufacture
  • Dismantling and inspection of valves and other assemblies
  • Dutchman removal and machining of casing head
  • Field lubrication
  • Field repairs of API 6D valves
  • Field torquing of studs and nuts
  • General machining
  • Geothermal Valves
  • Hydrostatic testing
  • Inventory management of customers property
  • Lube and test (in the field or at facility)
  • Machine and welding seat and seal pockets
  • Machining
  • Manufacturing, designing, and installing stem extensions
  • Modification of valves
  • Change stem seal from O-ring to chevron V-ring type
  • Convert model "D" Pow-R-Seal to bolted bonnet
  • Mounting of operators
  • New valves in stock
  • Nitrogen gas testing
  • Operator mounting
  • Painting and coating
  • Pre-inspections of valves prior to field service job
  • Remanufacture, complete: Pipeline gate valve and quarter-turn products
  • Remanufactured valves in stock
  • Repair as directed by customer-all products
  • Reworking of hydrocarbon and gas storage wellhead equipment and valves
  • Shotblasting and sandblasting
  • Skim cutting of flanges
  • Spare parts sales for Daniel/M&J, WKM, Grove, etc.
  • Special technical field assistance
  • Stem extension design, manufacture, install
  • Storage of Customer Assets
  • Storage wellhead equipment, design and manufacturing - OFM Profile
  • Storage wellhead service
  • Stress relieving
  • Valve conversions
  • Valve inspections-DOT type
  • Valve maintenance programs
  • Valve repair during plant shutdowns
  • Valve seminars
  • Welding



Getty Images 1263047692
Nov 11 - 14


Location: Stand 4470, Abu Dhabi, United Arab Emirates

Brands: GD Engineering, M&J Valve, ClydeUnion Pumps

Description: We are thrilled to invite you to visit us at Stand 4470, where we will be showcasing our cutting-edge flow technology. Our pump, valve and closure teams are looking forward to meeting you to discuss how our engineering solutions can help you navigate the complexities of carbon reduction.

CFT-GREEN | Valve Packing System
Dec 3 - 5

Valve World 2024

Location: Messe Düsseldorf, Stockumer Kirchstraße 61, 40474 Düsseldorf, Germany

Brands: Copes-Vulcan, GD Engineering, M&J Valve

Description: Meet our Copes-Vulcan, GD Engineering and M&J Valve teams to discuss how we are driving innovation and excellence in flow control and pipeline access solutions.

Where to Buy

Looking for information on quotes, pricing, and servicing? Contact our world class team and find out more.

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