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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
--providing 100% visibility are satisfactory for air service to 125 psi
to 180°F. Timers have crisp 3-way action, NC or NO, with reset rapid
to instantaneous. Our variable chamber provides strict linearity of adjustment
and accurate repeatability. Mounted in an elevated position these elements
will give many years of trouble free service.
TIMER RANGE NO NC
------------------------------------
1 second KGH-101 KLC-101
5 seconds KLH-105 KLC-105
10 seconds KLH-110 KLC-110
30 seconds KLH-230 KLC-230
60 seconds KLH-260 KLC-260
2 minutes KLH-212 KLC-212
Timers 30 seconds and above have auxiliary port for chamber extension. Timers
below 30 seconds may have auxiliary port specified by changing 1st digit
to 2.
Example: KLC-210 will be a ten second, NC unit with port for extending
chamber. Standard chamber volume is 1/2 cu. in.
Bachman Logic Elements
IMPULSE
KLG-121 (brown spool) converts any pneumatic input, slow rising or sharp
to a momentary output.
DELAY
KLG-131 (green spool) blocks signal momentarily.
AND
KLG-102 (green) requires supply [2] and signal [1] for output [3].
NOT
KLG-122 (red): supply [2] no signal [1]= output [3].
OR
KLG-112
Except for the 30 second and above timers, all units and logic elements
are available both in pipe through models, listed above, and bottom ported
with 0-ring gaskets in housing. For manifold mounting, change first digit
to "0," e.g.,KLG-021 for IMPULSE.
The Binary Counter
Model MC-902 is a single input binary counter (flip-flop) consisting of
two 4-way, 5-port valves plus two NOT elements.
The lower unit or main valve may be used in the circuit as any 4-way, 5-port
valve-for example, for operating a double-acting cylinder with supply at
center port.
The upper unit has a single input for signal. On rise of signal input the
main valve will change state and remain until the signal is recycled.
Where circuit simplification indicates pneumatic counting the MC-902 should
be considered. Door opening and closing, automatic positioning and work
circuits, sorting or dividing in materials handling, are some examples of
applications for this unit.
The binary counter is a fully dynamic system in which speed has been modulated
by orifices to achieve compatibility with average input signals. Extremely
slow rising signals may require modification by means of a piloted valve
or a logic element in order to assure reliability of the counting action.
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PILOTED VALVES
BACHMAN PILOTED VALVES, in addition to the important
advantage of transparency, offer many features for a variety of applications.
Being modular in shape they are suitable for stacking or mounting in multiples
on a common base. They are easily kept clean and are immune to freeze damage.
Normal operating pressures for double piloted models are 15 to 150 psi and
for spring return, 40 to 150 psi. For lower operating range see note at
end of page.
Double and Single Models
DOUBLE SINGLE LENGTH WIDTH HEIGHT NPT Cv
-----------------------------------------------------------------
MPD-33 MPS-33 2.12 1.30 1.00 1/8 0.25
MPD-45 MPS-45 2.74 1.30 1.00 1/8 0.25
RPD-33 RPS-33 3.37 2.00 1.25 1/4 0.88
RPD-45 RPS-45 4.37 2.00 1.25 1/4 0.88
FPD-33 FPS-33 4.25 2.20 1.25 3/8 1.90
FPD-45 FPS-45 5.50 2.20 1.75 3/8 1.90
WPD-33 WPS-33 4.25 2.20 1.25 1/2 1.90
WPD-45 WPS-45 5.50 2.20 1.75 1/2 1.90
RPD-22 RPS-22 3.25 2.00 1.25 1/4 2.60
WPD-22 WPS-22 4.12 2.20 1.25 1/2 6.00
Note: Above Dimensions in Inches
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
Return To Directory
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
Return To Directory
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