Rockwell Automation 836T Pressure Controls - Manuel

Differential
Pressure Adjustment
Screw "B"
(through access opening)
Differential
Pressure Adjustment
Screw "B"
Operating Range
Adjustment
Screw "A"
Pilot Light
Receptacle
Upper Pressure
Setting Indicator
1/4" - 18 N.P.T.F.
3/8" - 18 N.P.T.F.
or Optional Threads
Pressure
Connection
Locking Nut
Operation
Indicator
(Bellows
Type Only)
Electrical
Hub Connection
Bulletin 836T
Bellows Type Control
2 - Circuit
Bulletin 836T Piston Type
Shown With Cover Removed
Pressure
Connection
Ground
Screw
Contact
Block
Bulletin 836T Pressure Controls
DESCRIPTION - Bulletin 836T, Type 1, 4, & 13 oiltight pressure con-
trols are designed for use on machine tool applications where a stream of
oil or water may flow over the enclosure. Other applications would include
areas where it is desirable to resist the entrance of lint, dust, and dirt into
the enclosure.
The operating range pressure and differential are adjustable
externally.
Bellows type devices are available from vacuum to pressures up to
650 psi.
Piston type devices are available for pressures up to 5000 psi. ½
½
½
Piston Type Shown
Optional
SAE 7/16-20 UNF-2B
SAE 9/16-18 UNF-2B
Optional
BS20
Pg 13.5
(27mm)
(69mm)
3/8" - 18 N.P.T.F.
1/8" - 27 N.P.T.F.
Drain
1/2" - 14 N.P.T.
(69mm)
2 23/32"
2 23/32"
17/64"
1 1/16"
(13.5mm)
Dia. Counterbore
17/32"
(6.75mm)
Dia. Mtg. Holes
ATTENTION: Copper alloy bellows may be used on
water or air and other liquids or gases not corrosive to
this alloy. Type 316 stainless steel bellows are available
and are used for the more corrosive liquids and gases.
ATTENTION: Stainless steel piston type controls are
designed for use on oil, water and waterbased fluids but
must not be used on air or gases.
ATTENTION: The control should not be supported by only
the electricaland pressure connections. A support wrench should
b e u s e d w h e n t i g h t e n i n g t h e e l e c t r i c a l h u b a n d p r e s s u r e
connections.
ATTENTION: To prevent electrical shock, disconnect from power source before installing or servicing.
The 2 - Circuit contact block has one set of normally open and one set
of normally closed contacts. These contacts may be arranged for
single pole double-throw operation or separate circuit operation having
the same polarity.
A 4 - Circuit contact block assembly with two normally open and two
normally closed contacts is also available. An isolated terminal is
furnished to provide a termination point when an optional power
source is used. These contacts may be arranged for double pole
double-throw operation or two isolated single pole double-throw,
electrically isolated circuits. Circuits must be of the same polarity.
MOUNTING - The pressure control should be mounted securely to a
firm base using two mounting screws. The recommended fastener for
mounting is a 1/4"-20 or M6X1 metric screw. The applied torque
should not exceed 70 lb-in (8 Nm).The mounting holes (see sketch)
are easily accessible without removing the front cover assembly.