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Bachman Valve Corp.

"Specialists in Circuit Simplification"

Bachman Valve Corp., 1050 Volunteer Parkway, Bristol, TN 37620
Phone (423)764-6521 Fax (423)764-0445
email: contact@bachmanvalve.com

Directory

Bachman Offers Everything You Need For Automation

  • General Information
  • Timers & Logic Elements
  • Piloted Valves
  • Manual & Mechanical Valves
  • Air Cylinders
  • Fittings & Accessories
  • For More Information






  • GENERAL INFORMATION

    BACHMAN VALVES

    Bachman Valves are sliding spool directional controls. With seals in housing and multiple slots milled in the spools, they provide fast action for pressure or vacuum in spring return or detent. In simplicity and versatility they are often superior to poppet, ball, sleeve and other types. Satisfactory for many gases and fluids to 125 psi, they give long life service in thousands of applications, often in hostile environments formerly requiring stainless steel.

    Freezing is not a hazard for BACHMAN valves since acrylic will yield under conditions which destroy metal valves.

    HOUSINGS are machined from transparent acrylic plastic, a material which has long proved suitable for aircraft windows, outdoor signs and now, for 15 years, in valve applications. BACHMAN valves withstand normal abuse and neglect. They resist common solvents and chemicals and will maintain their good looks through years of exposure to weather, sea water, steam cleaning, etc. They are "user friendly" and available in hundreds of models.


    DELRINTM ACETAL SPOOLS, colored green for optimum visibility, provide light weight, long life, and maximum efficiency.

    ALUMINUM SPOOLS, coated with electroless nickel, are available upon request.


    THE CLEAR VIEW of valve function is often of great value in complex circuits which are now made simple by our valves and integrated modules


    FLOW CAPACITIES are standard for each port size: M valves have a Cv factor of .25, R = .88, F =1.9, W = 1.9, H = 2.8. Certain 2 way models are available in full Iron Pipe capacity, i.e., .437" dia.orifice for 1/4 NPT, .562" orifice for 3/8 NPT, etc.


    NOMENCLATURE: Valves are generally signified by 3 letters and 3 numbers but with some exceptions. Normally, only the first letter is significant and reads as follows: M = 1/8 NPT, R = 1/4 NPT, F = 3/8 NPT, W = 1/2 NPT, H = 3/4 NPT. "K" indicates timers and logic elements with 1/8 NPT porting. In most valves, -22 indicates 2 way 2 port, .33, 3 way 3 port, etc. Other symbols are non-significant.

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    TIME + LOGIC

    Bachman Acrylic Elements

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    Lines 1 to 10 above show 2 position, pipe-through models as pictured. Lines 11 & 12 are full IPS (iron pipe size) flow, available only in 2 way action, normally closed (NC) or normally open (NO).

    THREE POSITION VALVES, RPN-, FPN- and WPN-45 are identical in dimension with their 2 position counterparts. These are closed center models. BLEED OPERATED VALVES are available in 1/8" and 1/4" sizes. MBD- and RBD- for double bleed and MBS- and RBS- for single bleed, spring biased models.


    PUSHBUTTON, PILOT RETURN VALVES are stocked in all sizes and are specified by substituting the letter X for D. Example: FPX-45, 3/8 NPT


    OVERRIDES can be fitted with a 5/8" disk (on one side) by adding the letter F. Example: MPD-45F. Overrides may be omitted by adding the letter N.


    KPD- and KPS- are smaller versions of MPD-, MPS valves.
    KPD-033 is 1.62 in length and KPD-045 is 2-1/8. Cv factor is .20.


    NOTE: FOR LOWER PILOT SIGNALS, M & R valves have optional differential piston attachments, reducing pilot pressures to half.MFD-, RFD-, double pilot for 5 psi MFl-. RFl-, air return, for 5 psi.

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    MANUAL & MECHANICAL VALVES

    MANUAL VALVES have two principal parts--the housing with 0-ring recesses and the slotted spool. M series valves have1/4" hole through the spool which facilitates a wide range of actuating attachments.

    STANDARD OPTIONS include aluminum bodies (M series) delrin spools, all plastic construction, latching safety detent for certain models.

    SPRINGS normally supplied, deleted on request.
    
    MODEL         L1          L2          W           H       
    ----------------------------------------------------- 
    MA-22        0.94        1.75        1.30        1.00       
    
    MA-22 thru 45 valves have 1" dia. pushbutton and 6 Ib. spring. 
    Change to MB for 3/4" pushbutton, to ME for 7 1/6" delrin acorn nut, 
    to Mk for 1-3/8" palm button, to MF for red-white wafer actuators. 
    
    MA-32        0.94        1.87        1.30        1.00
    MA-33        1.25        2.25        1.30        1.00
    MA-43        1.25        2.25        1.30        1.00
    MA-45        1.87        2.87        1.30        1.00
    MBL-33       1.25        2.25        1.25        0.75        
    
    MBL33 thru 45 valves have aluminum housing, 3/4" pushbutton with 5 Ib. cone spring
    
    MBL-43       1.25        2.25        1.25        0.75
    MBL-45       1.87        2.87        1.25        0.75
    MTV-133/143 (Aluminum body treadle valve for sewing machine)
    RA-33        1.87        3.62        2.00        1.25
    RA-43        1.87        3.62        2.00        1.25
    RA-45        2.87        4.62        2.00        1.25
    FA-33        2.50        4.25        2.20        1.50
    FA-43        2.50        4.25        2.20        1.50
    FA-45        3.75        5.62        2.00        1.50        
    
    RA-33 thru WA-45 have 1-3/16" PVC pushbutton and 6 Ib. spring.
    
    WA-33        2.50        4.25        2.20        1.50
    WA-43        2.50        4.25        2.20        1.50
    WA-45        3.75        5.62        2.20        1.50
    MAO-33       1.25        2.25        1.30        1.25        
    
    MAO 33 & 45 have parallel mounting holes for panel mount.
    
    MAO-45       1.87        2.87        1.30        1.25
    MR-33        1.70        3.00        1.30        1.00
    MR-43        1.70        3.00        1.30        1.00        
    
    MR-33 thru RC-43 have 7/8" direct roller for cam actuation.
    
    RC-33        1.87        4.00        2.00        1.25
    RC-43        1.87        4.00        2.00        1.25
    PV-32                    2.00        0.87        0.50        Leaf actuator, for limit valve application 
    PVM-32                   2.00        1.50        1.00        Sensitive version of above
    MAG-43       1.25        2.25        1.30        1.00        Special spool slots provide neutral center
    MCN-433      1.25                    1.30        1.00        3 way 3 pos. divider valve center NO
    MCN-443      1.25                    1.30        1.00        4 way 3 pos. closed in center
    MCO-443      1.25                    1.30        1.00        4 way 3 pos. exhaust in center
    MCN-445      1.87                    1.30        1.00        4 way 5 port, all closed in center
    MCO-445      1.87                    1.30        1.00        4 way 5 port, output exhausted in center
    RA-122       2.00        3.25        2.00        1.25        Cv=3.00
    FA-122       2.62        3.93        2.20        1.50        Cv=5.20
    WA-122       2.62        3.93        2.20        1.50        Cv=6.00
    RL-33        1.87                    2.00        1.75        
    RL-45        2.87                    2.00        1.75
    
    RL series valves are lever actuated, with 1-3/8" ball handle
    
    RLD-45       5.37        6.50        2.00        1.75        4 way 3 pos. closed in center
    RLD-945      5.37        6.50        2.00        1.75        4 way 3 pos. open in center

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    AIR CYLINDERS

    BACHMAN CYLINDERS are satisfactory for air and many hydraulic applications to 125 psi at normal temperatures. Constructed of hard-coated aluminum, hard chromed steel and phenolic laminates, they will resist wear and corrosion over a long period in light to medium duty. Phenolic heads provide unexcelled slide bearings while the light weight and resilient materials give maximum resistance to shock and impact.

    Standard Buna-n 0-rings are used for rod, piston and barrel end seals.

    Bores 1" through 1 1/2" have rear center hole for swivel mount. These are also available with spring return to 4" stroke, adding 3/8" per inch of normal stroke length.

    Bores 2" and over are of heavier construction, with four tie rods, and have four mounting holes.Bores above 1 1/2" are not normally available as spring return cylinders. For double rod end cylinders, available as standard in 2" bore, add 1/4" to length. Stroke lengths to 72".


    AIR CYLINDERS-TRANSPARENT.
    Cylinder housing is a block of optically clear acrylic. Buna-n 0-rings are used for piston, rod and end cap seals. Cylinders are satisfactory for pressures,under non-shock loads, up to 100 psi at temperatures not exceeding 180° F. Typical applications are assembly machines, test fixtures, feed mechanisms, etc., as well as for test and instruction circuits in schools and industry. Piston rod is 3/8" diameter and in Models CS & CD extends 1/2" with 10-32 ft. In Models GS & GD rod extends 1-1/8" with 3/8"-24 thread.
    Model  Size     A       B      C      D      E       F      G      H       T     Ports
    --------------------------------------------------------------------------------------
    R-10   1"     1.250   1.625  0.194  0.750  1.125  5/16-24 0.375  0.750   10-32    1/8"
    R-12   1 1/4" 1.625   1.750  0.257  0.750  1.125  5/16-24 0.375  0.750   10-32    1/8"
    R-15   1 1/2" 2.250   2.250  0.257  0.750  1.125  5/16-24 0.375  0.750  1/4-20    1/8"
    R-20   2"     2.250   2.437  0.266  1.312  1.500  7/16-20 0.500  1.000  1/4-20    1/4"
    R-30   3"     3.250   3.250  0.266  1.750  1.500   1/2-20 0.625  1.000  5/16-18   1/4"
    R-40   3 3/4" 4.500   4.500  0.344  2.500  2.250   3/4-16 0.875  1.500  5/16-18   1/4"
    Cyl. Size       L         M         W         D
    -------------------------------------------------
    1" to l 1/2"  2.250     1.750     0.344     0.312
    2"            2.875     2.250     0.500     0.437
    3"            2.875     2.875     0.500     0.437
    4"            2.750     2.750     0.500     0.437 
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    FITTINGS & ACCESSORIES

    NYLON TUBE FITTINGS (JACO)
    These economical 2 piece connectors, with integral ferrule are recommended for use with Bachman valves in fluid power applications, using low density polyethylene tubing. Gripper rings(optional) are recommended for tubing other than polyethylene. Jaco makes many other fittings-some of which we stock but below are ones needed every day. Black available.
    TUBE OD   TO NPT  CONNECTOR  ELBOW   TEE  TEE UNION  STRAIGHT UNION  TUBE REDUCER
    ------------------------------------------------------------------------------------
      1/4"     1/8"     1-C       1-E    1-T   1/4"-U        1/4"-TU       ---
      1/4"     1/4"     2-C       2-E    2-T      ---          ---         ---
      3/8"     1/4"     3-C       3-E    3-T   3/8"-TU       3/8"-U      64-U (3/8"-1/4")
      1/2"     3/8"    86-C      86-E    ---     ---           ---       86-U (1/2"-3/8")
      1/2"     1/2"    88-C      88-E   88-T   1/2-TU         1/2-U      42-U (1/4"-1/8")
      1/8"     1/8"    16-C      TEE     ---    16-TU          ---         ---
    ACRYLIC BARB-LINK CONNECTORS (BACH MAN)
    All fittings are tube-to-tube type and are machined from acrylic plastic-except for the adapters which are of Delrin and have male pipe on one end.
              1/4"    3/8"    1/2"
    ----------------------------------------------------------------
    Union     4-C     6-C     8-C     Adapter 1/4"-1/8"     NPT 42-A
    Elbow     4-E     6-E     8-E     Adapter 1/4"-1/4"     NPT 44-A
    Tee       4-T     6-T     8-T     Adapter 3/8"-1/4"     NPT 64-A
    Cross     4-X     6-X     8-X     Reducing connectors and Tees are available
    Cap       4-P     6-P     8-P     Reducing connectors and Tees are available
    
    
    
    EXHAUST CONTROL PLUGS Split Delrin plug, for exhaust control:
    Slotted drive     1/8" NPT (PG-10)     1/4" NPT (PG-20)
    Hex drive         1/8" NPT (PG-11)     1/4" NPT (PG-21) 

    JUNCTION BLOCKS, ACRYLIC
                     A         B        C        D 
    ------------------------------------------------
    1/8" M-420     2.500     1.250     .875    .200
    1/4" R-820     3.000     2.000    1.250    .260
    3/8" F-1220    3.000     2.000    1.250    .260 
    1/2" W-1620    3.750     2.000    1.250    .260  

    TUBING, POLYETHYLENE

    Stocked in 100 ft. rolls and 500 ft. spools
    1/4" OD x .170
    3/8" OD x .250
    1/2" OD x .375
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    FOR MORE INFORMATION

    Bachman Valve Corp., 1050 Volunteer Parkway, Bristol, TN 37620

    Phone (423)764-6521 Fax (423)764-0445


    email: contact@bachmanvalve.com
    Or Use Our Information Request Form