When your business is on the line — M&J delivers.At M&J, we don't just engineer, manufacture, repair and supply the highest quality compressor parts in the gas and petrochemical industry. We keep your equipment running. It's a combination of knowledge, commitment and an intense hunger to be the best. That's why M&J has been the #1 choice for over 30 years.Hunger - Knowledge - CommitmentOur success is based on 3 principles that have provided the foundation for our most well-known service, compressor valve repair and manufacturing. Those same principles inspired us to become leaders in packing case service, parts distribution and machine shop services. And with strategically located Service Centers the nation, you've got immediate access to M&J."We didn't invent the valve, we reinvented the service."​M&J Valve Services has the capability to perform a full range of services for every compressor make and model. Services that are offered, but not limited to are:- Valve, Packing Case, and Wiper Case Repair- Piston Rod Assembly Repair- Connecting Rod, Crosshead, Cylinder, Variable Pocket, and Crankshaft Repair- Starter Repair- In House Manufacturing of Compressor Parts- Engineering: training, troubleshooting, optimization and sizingM&J Valve Services has the capability to acquire and supply a full range of products for every compressor make and model: Manufacturers that are included but not limited to are:- Ariel OEM (authorized Distributor)- GE HSR OEM (authorized Distributor); includes Gemini, CP, Ajax, and Superior- Dresser Rand OEM (authorized Distributor); includes Dresser Rand, Ingersoll Rand, and Worthington- Cooper- Clark- Joy- Knight- Knox Western- Gardner Denver