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***Note: With the publication of ASME Section XIII, the National Board revised NB-18 on January 2022 to refer to Designators instead of Code Sections. All Certifications that reference Code Sections remain valid for the equivalent Designators.

Manufacturers and Assemblers:

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Expand1138444 B.C. A Subsidiary of Mercer Valve Co., Inc. (MCD) MD Rocky View, AB T1X 0K3 Canada Nameplate Abbreviation: Mercer Valve Co., Inc. Calgary Division
ExpandAalberts Integrated Piping Systems Americas, Inc. (CNB) Pageland, SC 29728 United States Nameplate Abbreviation: Aalberts IPSA, Inc.
ExpandADVANCE VALVE, INC. (ADV) St. Louis, MO 63026 United States Nameplate Abbreviation: ADVANCE VALVE
ExpandAlbert Handtmann Armaturenfabrik GmbH & Co. KG (AHA) Biberach/Riss, 88400 Germany Nameplate Abbreviation: AHA
ExpandAllied Valve, Inc. (ALC) Chicago, 60642 United States
ExpandAllied Valve, Inc. (TPW) Appleton, WI 54913 United States
ExpandApplied Control Equipment, LLLP (APP) Commerce City, CO 80022 United States Nameplate Abbreviation: Applied Control
ExpandAquatrol, Incorporated (AQT) Elburn, IL 60119 United States Nameplate Abbreviation: Aquatrol
ExpandARI - Armaturen USA, LP (TAR) Webster, TX 77598 United States
ExpandAWC, Inc. (AWI) Baton Rouge, LA 70809 United States
ExpandAWC, Inc. (AIN) Westlake, LA 70669 United States
ExpandBeijing Aerospace Petrochemical Technology & Equipment Engineering Corporation Limited (BAP) Beijing, 100176 People's Republic of China Nameplate Abbreviation: BAPC
ExpandBellofram Acquisition Company II (WHI) Oklahoma City, OK 73149 United States
ExpandBermingham Controls, Inc. (LSL) Cerritos, CA 90703 United States Nameplate Abbreviation: BERMINGHAM CONTROLS
ExpandBerstscheiben Schlesinger GmbH (BER) Schalksmuhle, D-58579 Germany
ExpandBroady Flow Control Limited (BVL) East Yorkshire, HU3 2DU United Kingdom Nameplate Abbreviation: BROADY
ExpandBS&B PREMCO LATINOAMERICA S.A. DE C.V. (PLS) Guadalupe, Nuevo Leon, 67180 Mexico
ExpandCaliber Valve and Controls LLC (CLV) Lake Charles, LA 70615 United States Nameplate Abbreviation: Caliber Valve & Controls
ExpandCaltrol, Inc (CAT) Benicia, CA 94510 United States Nameplate Abbreviation: CALTROL BENICIA, CA
ExpandCavagna Group Spa (CAV) Brescia, OTH, 25011 Italy Nameplate Abbreviation: OMECA
ExpandCV Techserv, Inc. (CVT) Hastings, MN 55033 United States Nameplate Abbreviation: CV Techserv
ExpandDresser International L.L.C. (DIU) Dubai, 61302 United Arab Emirates Nameplate Abbreviation: Dresser JA
ExpandDresser, LLC (DRJ) Jacksonville, FL 32221 United States
ExpandEast Coast Valve Services, Inc. (ECG) Groton, CT 06340 United States Nameplate Abbreviation: East Coast Valve Services
ExpandElfab Limited (ELF) North Shields, Tyne & Wear, NE29 8SD United Kingdom Nameplate Abbreviation: ELFAB
ExpandEMERSON PROCESS MANAGEMENT S.A. DE C.V. (EMP) Toluca Edo, 50223 Mexico Nameplate Abbreviation: EPM TOL
ExpandFarris Engineering, Division of Curtiss-Wright Flow Control Corporation (FIC) Brantford, ON N3T 5M1 Canada Nameplate Abbreviation: Farris Engineering, Div. of Curtiss-Wright F.C.C.
ExpandFlow Safe Inc. (FSS) Houston, TX 77070 United States
ExpandFukui Seisakusho Company, Limited (FKI) Hirakata, Osaka, 573-1132 Japan
ExpandHansen Technologies Corporation (HTL) Commerce, GA 30529 United States Nameplate Abbreviation: HANSEN
ExpandHenry Technologies Ltd (HNL) Glasgow, Scotland, G52 4XZ United Kingdom
ExpandHorizon Valve Services Inc (HVS) Hominy, OK 74035 United States
ExpandIndustrial Service Solutions, LLC (WSL) Salt Lake City, UT 84119 United States Nameplate Abbreviation: Industrial Service Solutions
ExpandIntegrated Plant Services, Inc. (IPS) Columbus, OH 43219 United States Nameplate Abbreviation: Integrated Plant Services
ExpandJiangsu Reliable Mechanical Equipment Co., Ltd. (JRM) Nanjing, Jiangsu Province, 211316 People's Republic of China Nameplate Abbreviation: JRME
ExpandLAM VALVES INC. (LMV) Houston, TX 77023 United States
ExpandLCM Industries, Inc. (LCL) Longview, TX 75604 United States
ExpandLCM Industries, Inc. (LCM) Odessa, TX 79763 United States
ExpandLESER Valvulas de Seguranca Ltda. (PLB) Rio de Janeiro, RJ, CEP: 22713-460 Brazil Nameplate Abbreviation: LESER BR
ExpandMidwest Valve Services, LLC (RSO) Des Moines, IA 50313 United States Nameplate Abbreviation: Midwest Valve Services
ExpandMOTOYAMA ENGINEERING WORKS, LTD. (MTY) Kurokawa-gun, Miyagi-Ken, 981-3967 Japan
ExpandMt.H Control Valves Co., Ltd (MHC) Gangseo-gu, Busan, 46754 Republic of Korea
ExpandPCE Pacific, Inc. (TSR) Everett, WA 98203 United States
ExpandPioneer Industrial Corporation (PLA) Hastings, NE 68901 United States Nameplate Abbreviation: PRV
ExpandPortersville PRD LLC (PRT) Blountville, TN 37617 United States Nameplate Abbreviation: Portersville PRD - TN
ExpandPortersville PRD LLC (PVE) New Castle, PA 16101 United States
ExpandPrecision Fitting & Gauge (PFG) Tulsa, OK 74112 United States Nameplate Abbreviation: PFG
ExpandPrecision Pump & Valve Service, Inc. (PPV) Cross Lanes, WV 25313 United States
ExpandRelevant Industrial, LLC, DBA Precision Fitting & Gauge, LLC (POK) Tulsa, OK 74116 United States
ExpandREMBE GmbH Safety+Control (REM) Brilon, 59929 Germany Nameplate Abbreviation: REMBE
ExpandRobert E. Mason & Associates Inc. (MCS) Charlotte, NC 28208 United States Nameplate Abbreviation: Robert E. Mason & Associates
ExpandSETPOINT Integrated Solutions, Inc. (SET) Baton Rouge, LA 70809 United States
ExpandSETPOINT Integrated Solutions, Inc. (WLS) Sulphur, LA 70665 United States
ExpandShanghai Huali Safety Devices Co., Ltd. (SHS) SHANGHAI, 201108 People's Republic of China
ExpandShanghai Kaite Valve Manufacture Co., Ltd. (SKV) Anting, Shanghai, 201814 People's Republic of China Nameplate Abbreviation: SHKT
ExpandStorm Manufacturing Group (KNG) Torrance, CA 90501 United States Nameplate Abbreviation: Kingston
ExpandTarget Rock (TRC) E. Farmingdale, NY 11735 United States
ExpandTaylor Valve Technology, Inc (TTS) Oklahoma City, OK 73128 United States Nameplate Abbreviation: Taylor Valve
ExpandTeam Industrial Services, Inc (FTO) Long Beach, CA 90805 United States Nameplate Abbreviation: D.K Amans Valve
ExpandTRANSWATER API SDN. BHD. (TRW) Kuantan, Pahang, 25200 Malaysia Nameplate Abbreviation: TW
ExpandUnified Valve Group Ltd (UNI) Calgary, AB T1Y 7C1 Canada Nameplate Abbreviation: UVGL
ExpandValve & Actuation Services, LLC (VSI) Chattanooga, TN 37419 United States Nameplate Abbreviation: Chalmers & Kubeck - TN
ExpandValve & Actuation Services, LLC dba Chalmers & Kubeck - AL (CKD) Decatur, AL 35601 United States Nameplate Abbreviation: Chalmers & Kubeck - AL
ExpandValve & Actuation Services, LLC dba Chalmers & Kubeck - MB (CHA) Mobile, AL 36619 United States Nameplate Abbreviation: CKM
ExpandValvulas Nacional S. A. (VNS) Rubi (Barcelona), 08191 Spain
ExpandVinson Process Controls Company, LP (VIN) Carrollton, TX 75007 United States
ExpandVRC Protx, LLC (RIL) New Berlin, WI 53151 United States
ExpandZook Enterprises, LLC (ZOE) Chagrin Falls, OH 44022 United States Nameplate Abbreviation: ZOOK