Category-C Fittings
Valves
| Ball and Butterfly Valves | Valpres S.R.L. |
| Ball and Needle Valves | Legris Sa |
| Ball and plug valves | Chemvalve Inc. |
| Ball valve | Circor Tech |
| Butterfly valves | Alberta Oil Tool, A Dover Company |
| Butterfly valves up to 12″ dia | Interativa Industria, Comercio E Reprentacoes Ltda |
| Butterfly Valves | Titan Flow Control Inc. |
| Check and Control Valves up to 24″ dia | Dft Inc. |
| Check Valves up to 4″ dia | Spx Process Equipment |
| Check Valves up to 20″ dia | CheckAll Valve |
| Check, stop and relief valves | Hale Hamilton (Valves) Ltd. |
| Check Valves | Titan Flow Control Inc. |
| Choke and Safety Valves up to 3″ dia | Taylor Valve Technology |
| Control valves | Cci Valve Technology Ab |
| Control Valves | Pibiviesse Srl |
| Diaphragm Valves up to 14″ dia | Sed Flow Control Gmbh |
| Dual plate and non-slam check valves | Goodwin International Ltd. |
| Externally controlled poppet valve | Diamond Canapower |
| Flow Control Valves | W.A. Kates Company |
| Flow Control and Poppet Valves | ROSS Controls |
| Gas valves up to 6″ dia | Fujikin Incorporated |
| Gate valves up to 8″ dia | Jvs Engineers |
| Gate, Globe and Check Valves up to 8″ dia | Ladish Valves |
| General Brass Valves | United Brass Works Inc. |
| General cryogenic valves up to 4″ dia | Bestobell Valves Limited |
| General Stainless Vavlves | Somas Instrument Ab |
| General valves | Apollo Valves |
| General valves | Ampo, S. Coop. – Valvulas Poyam |
| General valves | Abv S.R.L. |
| General valves | Apv Rosista Gmbh |
| General valves | Predator Valves |
| General valves | Cameron |
| General valves | Circle Seal Controls, Inc. |
| General valves | Circor Energy Products |
| General valves | Colton Industries |
| General valves | Conval Inc. |
| General valves | Crane Co. |
| General valves | Dresser Inc. |
| General valves | Eayuan Metal Industrial Co., Ltd. |
| General valves | Everlasting Valve Company Inc. |
| General valves | Fair Fortunes Valve Co Ltd. |
| General valves | Sino Base Metal Co. Limited |
| General valves | Habonim Cast Products And Industrial Valves Ltd. |
| General valves | Hyupjin Valve Ind. Co. Ltd. |
| General Valves | Leslie Controls Inc. |
| General Valves | Microfinish Valves Limited |
| General Valves | Modentic Industrial Corporation |
| General Valves | Multi Instruments |
| General Valves | Narvick – Yarway B.V. |
| General Valves | Neway Valve (Suzhou) Co. Ltd. |
| General Valves | Pacific Valves |
| General Valves | Primary Fluid Systems Inc. |
| General Valves | Proval Industrial Co. Ltd. |
| General Valves | Schuf Valve Technology Gmbh |
| General Valves | Valvitali S.P.A. |
| General Valves | Vexve Oy |
| General valves and regulators | Cashco Inc. |
| General Valves and Regulators up to 10″ dia | Sensiflo, Subsidiary Of Cashco Inc. |
| General valves B16.34 | Armstrong Yoshitake |
| General valves B16.34 up 36″ dia | Hh Valves Ltd. |
| General valves B16.34 up to 2″ dia | Bonney Forge Corporation |
| General valves brass, monel and stainless | Hoke Inc. |
| General valves cast iron up to 24″ dia | Bray Valves And Controls Canada |
| General valves DN10 to 400 | Asv Stuebbe Gmbh And Co. Kg |
| General Valves up to 1.5″ dia | Spence Engineering Co. |
| General valves up to 12″ dia | Danfoss Industrial Refrigeration A/S |
| General valves up to 12″ dia | Fetterolf Corporation |
| General Valves up to 12″ dia | Red Point Alloys B.V. |
| General Valves up to 12″ dia | Schubert & Salzer Control Systems Gmbh |
| General Valves up to 120″ dia | Newco Valves Lp Dba Newmans |
| General Valves up to 120″ dia | Ritepro Corporation |
| General Valves up to 136″ dia | W.T. Armatur Gmbh & Co. Kg. |
| General valves up to 14″ dia | Gemu Valves Inc. |
| General Valves up to 144″ dia | Sartell Valves Inc |
| General Valves up to 144″ dia | Valmatic Controls Inc. |
| General valves up to 16″ dia | Gosco Valves |
| General valves up to 16″ dia | Itt Richter Chemie-Technik Gmbh |
| General Valves up to 16″ dia | Zheijang Victory Valve Co., Ltd. |
| General valves up to 2″ dia | Asco |
| General valves up to 24″ dia | Ever Metal Industry Co. Ltd. |
| General valves up to 24″ dia | Icarus S.A. |
| General valves up to 24″ dia | Itt Engineered Valves |
| General Valves up to 24″ dia | Sempell Aktiengesellschaft |
| General Valves up to 24″ dia | Strahman Valves Inc. |
| General Valves up to 24″ dia | Sure Flow Equipment |
| General Valves up to 24″ dia | Velan Inc. |
| General Valves up to 24″ dia | Vir Valvoindustria Ing. |
| General valves up to 3″ dia | Dalian Jag Flocomponents Co., Ltd. |
| General valves up to 3″ dia | Fu San Machinery Co., Ltd. |
| General valves up to 3″ dia | H.A. Phillips And Co. |
| General valves up to 30″ dia | Flow Link Systems (P) Ltd. |
| General Valves up to 30″ dia | Sure Seal Inc. |
| General valves up to 32″ dia | Flowserve Corporation |
| General Valves up to 35″ dia | Neotecha Ag |
| General valves up to 36″ dia | Boteli Valve Group Co., Ltd. |
| General Valves up to 36″ dia | Trueline Valve Corporation |
| General valves up to 4″ dia | Viega Propress Pipe Systems |
| General valves up to 4″ dia | Haitima Corporation |
| General valves up to 4″ dia | King Valve Industrial Co. Ltd. |
| General Valves up to 4″ dia | Rubinetterie Bresciane Bonomi Spa |
| General valves up to 48″ dia | Dezurik Of Canada |
| General valves up to 48″ dia | Jc Fabrica De Valvulas, S.A. |
| General valves up to 48″ dia | Kitz Corporation |
| General Valves up to 48″ dia | Valvosider S.R.L. |
| General Valves up to 48″ dia | Victaulic Company Of Canada Ltd. |
| General Valves up to 52″ dia | Yancheng H & M Pressure Valve Co., Ltd. |
| General valves up to 6″ dia | Hansen Technologies Corporation |
| General Valves up to 6″ dia | Revalco B.V. |
| General Valves up to 6″ dia | Sudmo Components Gmbh |
| General Valves up to 6″ dia | Tuchenhagen Gmbh |
| General valves up to 72″ dia | Enflow Industries Inc. |
| General Valves up to 8″ dia | Lvf S.P.A. |
| General Valves up to 88″ dia | Pk Valve Co. Ltd. |
| Globe valves up to 8″ dia | Cvs Controls Ltd. |
| HVAC valves | Emerson Climate Technologies Ltd. |
| Knife, ball, butterfly and Vport valves | Elite Valve Canada |
| Oil and Gas Valves | Maxon Corporation. |
| Oil and Gas Valves | Oliver Valves Limited |
| Pinch, Gate and Disc Valves up to 1″ dia | Larox Flowsys Oy |
| Plastic and alloy valves | Primary Fluid Systems |
| Plastic valves | Chemline Plastics |
| Plastic valves | Praher Plastics |
| Pressure Regulators | Amico Corporation |
| Pressure Regulators | Brooks Instrument |
| Pressure Regulators up to 4″ dia | Spirax Sarco |
| Refrigeration and Air Conditioning Valves | Sporlan Valve Company |
| Regulators | Marsh Bellofram |
| Severe Service Ball Valves | Mogas Industries Inc. |
| Slurrey, Ball and Line Valves up to 24″ dia | Watson Valve Services Inc |
| Specialty Valves | Sherwood Harsco Corporation |
| Specialty Valves | Harrison |
| Valves and Regulators | Generant Company Inc. |
| Valves and Regulators | Lung Yun Casting Co., Ltd. |
| Valves and Regulators | Marshall Excelsior Company |
| Valves and Regulators up to 4″ dia | The Wellmark Company |
| Valves and Regulators up to 4″ dia | Watson Mcdaniel |
| Valves B16.34 up to 60″ dia | Gwc Valve International Inc. |