PROGRAM OF VALVES ISO 9001 - Commercial …

1 THE WORLDWIDEPROGRAM OF VALVESISO 9001 Commercial Shearing (Pty) Ltd An Insight intoValve TechnologyThe honing of spool bores and grinding of spools is so well con-trolled that matching of components has been virtually eliminat-ed between Kanban system controls throughput and end of processinvestory to give just-in-time ASSURANCEOur factory has been accredited to ISO 9001 standard since1991 and we are equally proud of the many world class cus-tomers who have also given us first class quality rating. Processcontrols are introduced at all stages in the manufacturingprocess and include computer assisted SPC addition regular quality audits are carried out includingcomplete audit strip of finished product.

2 Supplier quality assur-ance is formalised to extend the quality process through thesupply chain. Zero defects are the objective. A large investmenthas been made in total quality management ( ) Allemployees have been trained in total quality and the concepthas been embodied in the complete management ROOM ASSEMBLY AND TESTA major investment has been made in a clean-room assemblyand test are cleaned prior to entering the totally enclosedclean-room. The air-conditioned clean-room is maintained witha small positive air pressure to prevent ingress of contaminationduring component transfer.

3 Assembly stations are ergonomical-ly designed for maximum VALVES are transferred within the clean-room to the testarea which houses 12 test rigs. Automatic test cycles are single assembly undergoes a complete and rigorous testcycle to ensure design performance standards are DESIGNGood design is the starting point. Commercial has a totally ded-icated design team concentrating all their efforts on controlvalve computer assisted design tools are used including CADand PC based capability in and component DEVELOPMENTTo refine the design and tailor the valve to optimise perform-ance in the application, Commercial has made a large invest-ment in its development centre.

4 The centre has two developmentrigs totalling 415 BHP and environmental test cabinets to simu-late hostile operating conditions. The centre is large enough toaccommodate customers machines for installation trials and in-house performance addition advanced experimental research projects are car-ried out to validate new design MANUFACTURING PROCESSA large investment has been made in computer controlled pur-pose designed machinery. To ensure precision and consistency theprocess is organised around permanently set manufacturing SHEARING VALVES2 Commercial SHEARING VALVES3 Ordering CodeMonoblock Directional control ValveFeatures MCD20 and MCD50 Series are monoblock direc-tional control VALVES with parallel circuits.

5 The standardvalve comes with an adjustable main relief valve and acheck valve. The carry over circuit, spool types, spoolcontrols, and other options are available. The compact casting is made of high strenght castiron. The spools are made of hardened and FlowMax. PressureL/min (USgpm) bar (psi)MCD20 45 (12) 210 (3000)MCD50 70 (18) 210 (3000)SeriesSeriesMCD20 and MCD50 MCD20 and MCD50 ModelMCD20, MCD50 Number of SpoolRelief Valve Setting (bar)no code - 210 bar140- 140 barSpool Controlno code orS- Spring return to centerD- Detent in three positionsSpool Typeno code or1- Double acting, 3 positions with A and Bclosed in centerA- Single acting on A, 3 positions B pluggedB- Single acting on B, 3 positions A pluggedM- Double acting, 3 positions with A and Bto tank in centerService Valve* (MCD20 only)

6 No code - Without valveP- Without valve, but with pre-arranged holesC- With pilot operated check VALVES on port A and B*With Service Valve, the main valve body will come without Port P andT on top and Port A and B can be BSPT 3/8 only, but Port A and B onCheck valve can be any threads as specified in Ordering Port Connectionno code - Port P and T at side with optionalPort P and T pluged on topTT- Port P and T on top with optionalPort P and T pluged at sideSS- Port P and T at side only withstandard 3 mounting holes onlyPort ThreadCircuit Optionno code - With open center plugCO- With carry over sleeveCC- With closed center plugExamples.

7 MCD20/1-D= Single spool, double acting, detentin 3 positions, BSPT 3/8 MCD20/2-A/B/CO-BSP= Double spool, 1st single acting on A, 2nd spool single acting on B, with carry over, BSP 1/2 MCD20/2 - 140 / D1C / D1C / CO- BSP-TTInlet 1st Spool 2nd Spool OutletThread Port A-B Port P-C Port TMCD20 no code BSPT3/8"3/8"3/8"T04 BSPT1/2"1/2"1/2"BSPBSP1/2"1/2"1/2"SAESAE SAE8 SAE10 SAE10 MCD50 no code BSPT1/2"1/2"3/4"T06 BSPT3/4"3/4"3/4"BSPBSP3/4"3/4"3/4"SAESAE SAE10 SAE12 SAE12 Commercial SHEARING VALVES4 MCD20/1 MCD20/2 Installation DimensionsCOMMERCIAL SHEARING VALVES5 MCD50/1 MCD50/2 Installation DimensionsCOMMERCIAL SHEARING VALVES6 SeriesSeriesMCD10 MCD10 Sectional Directional control ValveFeatures MCD10 Series are Sectional directional

8 control VALVES with parallel circuits. The standard valve comes with an adjustable main relief valve and a check valve. High pressure carry over circuit, spool types, spool controls, and other options are available. The compact casting is made of high strenght cast spools are made of hardened and tempered Flow 80 L/min (21 USgpm)Max. Pressure 210 bar (3000 psi)Port A-B BSPT 1/2 or SAE8 Port P BSPT 1/2 or SAE10 Port T BSPT 3/4 or SAE10 MCD10 MCD 10/1 144 70 10/2 188 114 10/3 158 10/4 276 10/5 320 10/6 364 290 10/7 408 334 10/8 452 378 10/9 496 422 10/10 540 466 ThreadsINLET & OUTLET PORTS3/4" ODT 3/4" BSP, M27 x 2 SERVICE PORTS5/8" ODT 1/2" BSP, M22 X 1,5 PORT ACCESSORIESA vailable as relief valve, anticavitation or combination of both.

9 In screwor shim adjustuble forms. Tamper proof option available. Double actingto single acting change over plug or steel blank. Hydraulic or pneumatic pilot. Cable operation. Manual operation. Micro switch adaptation for double/single acting sections. Cable or manual operation for operating 2 spools from one MECHANISMSS pring return, 3 position detent, 3 position detent spool in, or out, 2 position detent, 4th position detent for float. Technical DataSPOOL FUNCTIONSD ouble acting, single acting, motor, float, DescriptionCommercial KA 18 spool type directional controlvalves for open and closed centre circuits are of sec-tional design for flexibility of circuit construction.

10 Eachsection also incorporates a load hold check valve toprevent interaction between services. Up to 9 sectionscan be banked in right hand and/or left hand and canbe tandem, parallel or series DATA (mm)Maximum PressureKA18 Main Relief Valve320 barPort Relief Valve350 barRated Flow:Nominal 80 l/minPressure Drops:Taken at 80l/min and in bar1 to T P to A & B A & B to TCOMMERCIAL SHEARING VALVES7KA18KA18 Commercial SHEARING VALVES8 Porting ThreadsINLET & OUTLET PORTS3/4" split flange, 1/2" BSP, 3/4" BSP, 1" BSP,M26 x , M33 X 2, 3/4" ODT, 1" PORTS1/2" split flange, 1/2" BSP, 3/4" BSP, M 22 x " ODT, 5/8" ODT, 3/4" ODT, M 26 x ACCESSORIESA vailable as relief valve, anticavitation or combination of both, in screwadjust form.