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PT Coupling
PT Coupling


Enid, OK, USA


Manufacturing · Sustainability


1001-5000 employees



founded in


PT Coupling Company is a family owned business founded by RC Parrish in 1951. PT is a division of Parrish Enterprises Ltd. aka Parrish Manufacturing Group. Parrish has 340 employees. PT is a US manufacturer of cam and groove hose couplings. Couplings are made from aluminum, brass, stainless steel, ductile iron, polypropylene, nylon. PT Stainless Steel cam and groove couplings are produced in 2 foundries in the USA. Oklahoma Investment Castings in Blackwell, Oklahoma, acquired by Parrish Enterprises Ltd. in 1984, and Mississippi Precision Cast Parts in Columbus, MS, established in 1994 by Parrish Enterprises Ltd. Both investment casting foundries are ISO 9001 certified. Alloys poured are 316, 304, 17-4, Carbon Steel, Alloy 20, Hastelloy. Material certifications are provided on request. In Enid, OK, PT produces aluminum, brass, and ductile iron sand castings under the ISO 9001 quality system. Materials are all certified. Other capabilities are heat treatment of 356 T6 Alum, as well as solution annealing, nitriding, atmospheric annealing for stainless steels. All PT products are machined at Central Machine and Tool Company. CMT is also part of Parrish Ent. Full CNC capabilities from turning to CNC machining centers are located in this shop. Punch-Lok center punch hose clamps, banding, and tools are produced in Enid, OK also. All Punch-Lok products are made from certified materials. Progrip crimp fittings, ferrules, and sleeves for industrial hoses is also a growing segment of the PT line. Progrip products are under the same roof as Central Machine and Tool Company. Specialty Plastics Company, established in 1988, is also located in Enid, OK and all of PT's polypropylene and nylon cam and groove couplings are manufactured here. Safety Bumps are also made at this location. Parrish Enterprises Ltd. aka Parrish Manufacturing Group is always open to new opportunities. To learn more about us and our capabilities please visit WWW.ParrishMfg.COM

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