Modular, Series-Progressive,
Divider Valve Delivers
Positive Oil Lubrication for
Gas Engines, Compressors
and Similar Equipment at
Pressures up to 6000 PSI
and 7500 PSI
Available Electronic Only
MHH valves
are a direct
replacement for
MHP valves. *
*MHP part numbers will automatically be superseded by the Graco GEDI order entry system.
L10103MHH Modular Divider Valves
MHH divider valves precisely proportion a volume of oil to satisfy
the different requirements of every point in a lube system. They
operate in sequential fashion to ensure that no point is missed.
Series-Progressive design provides ready monitoring capability.
MHH divider valves are available for use with petroleum or
synthetic oils and at pressures up to 7500 PSI. The modular,
stackable sub-plate design provides maximum application
flexibility. Accessory components are available for visual
diagnostics and electrical monitoring.
FEATURES/BENEFITS
• Use in terminating oil systems at pressures up to 7500
PSI (517 bar)
• Lubricate up to 16 points from one divider valve
assembly.
• Soft-seal O-ring construction and indicator ports
minimize leakage and reduce maintenance.
• Built-in check valves prevent lube back flow and help
keep lube lines full.
• Stackable sub-plate design simplifies build-up,
installation and maintenance.
DESCRIPTION
Each MHH divider valve assembly incorporates from three to
eight working piston sections (1), associated sub-plate sections
which include the outlet distribution ports (2), an inlet section
(3), and an end section (4).
“Twin” sections are ported to provide separate outputs from
each end of a working piston and direct them to two lube points.
“Single” sections are ported to combine the outputs from each
end of a working piston and direct it to one lube point.
Cross port plates (5) may be installed between working piston
sections and sub-plate sections to combine the outputs of
successive working piston sections. (Cross port plates must
not be installed beneath bottom working sections.) Singling
plates (6) may be installed to combine the outputs from both
ends of a working piston in any "Twin" section. Bypass sections
(not shown) may be used in place of working piston sections to
eliminate inactive lube lines without disturbing active lube lines,
or to provide for future system expansion. (Divider assembly
must contain at least three working sections in addition to
bypass section.)
• Ample clearance between outlet connections for
elbows and 3/8" lube lines.
• Performance indicators, cycle indicators and proximity
switches monitor divider valve action to simplify
troubleshooting and repair.
• Choice of SAE or NPSF inlet and outlet connections
• Choice of 70 Durometer Buna-N or 90 Durometer
fluoroelastomer O-rings.
in3cm3Part No.Old Part No.Part No.Old Part No.Part No.Old Part No.
shown at right
MHH (High Pressure
fluoroelastomer
90 Durometer O-Rings)
w/Cycle Pin *+
Right Hand Side
NOTE:
Part No.Old Part No.Part No.Old Part No.
Key Description
2Intermediate Sub-plate*563425–563451527-003-550
3Inlet w/Bleed563421–563422527-000-325
4End Section*563424–
5Cross port plate - Right+#563469527-005-320
Cross port plate - Left+#563470527-005-330
Cross port plate - Both+#563471527-005-340
6Singling Plate+#563472527-005-350
1/8-27 NPSF7/16-20 SAE
1/4-18 NPSF
* Part numbers include standard Buna-N
70 Durometer seals for 6000 PSI
maximum system pressure. Consult
Graco for fluoroelastomer 90 Durometer
(7500 PSI) seals.
Working piston sections are also
available with cycle indicators mounted
on the left-hand side, but limit maximum
operating pressure to 3500 psi.
13Indicator Port O-Ring, 70 Buna-N556567422-210-030
Indicator Port O-Ring, 90 fluoroelastomer556569422-240-030
1470 Duro, Buna-N O-Ring556540422-010-060
90 Duro, fluoroelastomer O-Ring122276–
15Valve Block Mounting Screw for use w/cross port and
Singling Plates
556514419-140-080
singling can be accomplished by using
appropriate plates.
+ Part numbers include appropriate
mounting screws.
# Part numbers include 90 Durometer
fluoroelastomer seals for 7500 PSI
maximum system pressure.
L10103MHH Modular Divider Valves
Page 3
L10103MHH Modular Divider Valves
CYCLE INDICATORS
By sensing divider valve piston movement, lube volume can be
accurately monitored and controlled. A variety of mechanical
and electrical cycle indicators are available for this purpose.
DIVIDER VALVE SECTIONS WITH
ATTACHED CYCLE INDICATOR PIN
18 through 30 size MHH divider valve sections are available
with a factory-installed cycle indicator pin attached to either
end of the piston. The pin moves in and out one time for each
complete cycle of the divider valve assembly. Application
pressure is limited to 3500 PSI.
See Page 3 for part numbers. Consult Graco for part numbers
of sections with pin on left-hand side and for part numbers of
sections with fluoroelastomer seals.
CYCLE INDICATOR SWITCH - FOR USE WITH
DIVIDER VALVE SECTION HAVING ATTACHED
CYCLE INDICATOR PIN
TypeRatingPart No.Old Part No.
SPDT20.0A @ 125, 250 VAC
0.50A @ 125 VDC
0.25A @ 250 VDC
DPDT10.0A @ 125, 250 VAC
0.30A @ 125 VDC
0.15A @ 250 VDC
563272510-599-000
564357510-577-000
MAGNETIC VISUAL CYCLE
INDICATOR
A No-Weep Magnetic Visual Cycle Indicator can be installed
in place of a piston enclosure plug on any size divider valve
section. Six steel balls in a transparent sleeve follow a magnet
which moves with the cycling piston. Unlike a cycle indicator
pin, working section displacement is not reduced. Suitable for
application at pressures up to 7500 PSI.
Part number 563251 (509-932-522)
UNIVERSAL CYCLE COUNTER - FOR USE WITH
DIVIDER VALVE SECTION HAVING ATTACHED
CYCLE INDICATOR PIN
Switch bracket clamps to a cycle indicator pin housing. Cycle
indicator pin movement repeatedly trips an electrical (limit)
switch. Switch pulses provide input to a system controller
which counts them to control and verify completion of the lube
cycle.
Counter housing clamps to a cycle indicator pin housing. A
6-digit mechanical counter, advanced by the movement of a
divider valve cycle indicator pin, provides visual assurance that
the system is functioning. Every “count” indicates one complete
cycle of the divider valve assembly. Suitable for application at
pressures up to 3500 PSI.
Part number 563444 (527-002-410)
Page 4
REED-TYPE PROXIMITY SWITCH (OPTIONAL)
(2) 22 GA
7/16-20
THRD.
3.687
This magnetically operated SPST switch is installed in place of
a piston enclosure plug. This "unattached pin" type switch can
be used with any size MHH working section An indicator type
magnet follows the divider valve piston, opening and closing the
switch as it moves back and forth.
WIRES
48 IN. LONG
1.125 DIA.
1/2 IN. NPT
FEMALE
CONDUIT
CONNECTION
L10103MHH Modular Divider Valves
SPECIFICATIONS
MaterialStainless Steel, Aluminum
Switch Rating1.2 Volt-Amperes; up to 115 VAC, 50 VDC
ContactsSingle Pole, Single Throw
Ambient Temperature 0º F to 130º F (-18º C to 55º C)
Operating Pressure7,500 psi (max)
Cycle Rate60 cpm (max)
Cycle Life Expectancy 10,000,000+ Cycles
Part No.563427 (527-001-231)
FIELD-SENSITIVE-MECHANICAL (FSmech)
PROXIMITY SWITCH FOR HAZARDOUS
ENVIRONMENTS (SUPPLIED AS STANDARD
WITH MENU CODE OPTIONS E, F, G, M, N, P)
This mechanical switch is installed in place of a piston
enclosure plug and is actuated by the movement of the piston.
It can be used with any size MHH working section and
is suitable for use in systems operating in hazardous
environments.
SPECIFICATIONS
Current Rating1.2 Volt-amps @ 28 VDC;
5A Resistive @ 115, 230 VAC
Temperature Range-58º F to 167º F (-50º C to 75º C)
Normally Open Contacts
Cycle Rate150 cpm (max)
Cycle Life Expectancy 10,000,000+ Cycles
Operating Pressure7,500 psi (max)
CSA CertifiedFor CL1: Groups A, B, C and D; Div. 1
Part No.563485 (527-006-060)
Page 5
L10103MHH Modular Divider Valves
PERFORMANCE INDICATORS
Performance indicators respond to the increase in pressure
which occurs when lube lines or lube points become blocked.
When installed in indicator ports of working piston sections, they
pinpoint blockage location. Some models relieve the excessive
pressure, allowing the divider valve to continue to cycle. Some
models do not relieve the excessive pressure, causing the
divider valve to lock up.
Automatic Reset Relief Indicator
A spring-loaded piston unseats when lube line blockage occurs
and lubricant escapes through a vent to the atmosphere. This
allows the system to continue lubricating the other unaffected
points. When the blockage is cleared, the piston automatically
reseats.
Relief PressurePart No.Old Part No.
750 psi (52 bar)563170508-310-415
1,000 psi (69 bar)563171508-310-425
1,250 psi (86 bar)563172508-310-435
1,500 psi (104 bar)563173508-310-445
2,000 psi (138 bar)563174508-310-455
2,500 psi (173 bar)563175508-310-465
3,000 psi (207 bar)563176508-310-475
Disc-Type Pressure Indicator
A blow-out disc ruptures when lube line blockage occurs and
lubricant forces a pin to protrude from the body of the indicator.
There is no provision for relief and the pressure escalates until
relieved elsewhere in the system. The disc must be replaced
and the pin reset manually after the blockage is eliminated.
Relief PressurePart No.Old Part No.
2,800 psi (193 bar)563229509-499-625
3,700 psi (255 bar)563221509-499-105
4,600 psi (317 bar)563222509-499-125
5,500 psi (380 bar)563224509-499-145
6,400 psi (441 bar)563226509-499-165
Spring-Type Pressure Indicator with Memory
When blockage occurs, a spring-loaded piston unseats and
forces a separate indicator pin to protrude from the body of
the indicator. There is no provision for relief, and the pressure
escalates until relieved elsewhere in the system. The spring
automatically reseats the piston but the indicator pin must be
reset manually after the blockage is eliminated.
Relief PressurePart No.Old Part No.
250 psi (17 bar)563252509-932-590
500 psi (35 bar)563253509-932-600
750 psi (52 bar)563254509-932-610
1,000 psi (69 bar)563255509-932-620
1,500 psi (103 bar)563256509-932-630
2,000 psi (138 bar)563257509-932-640
2,500 psi (173 bar)563258509-932-650
3,000 psi (207 bar)563261509-932-831
5,000 psi (345 bar)563262509-932-832
OUTLET CHECK VALVES
Max
Operating
Pressure
5,000 psi
7,500 psi35-60 psi
3,500 psi20-50 psi
7,500 psi20-50 psi
Outlet check valves enhance system integrity by ensuring that contaminants, air or gases
do not back up into the lubrication system.
Cracking
PressureDescriptionPart No.Old Part No.
NPT Divider Valve Outlet Check Valves
10 psi
35 psi563196509-350-030
120 psi563197509-350-120
250 psi563198509-350-250
360 psi563051463-001-582
1/8-27 M x 1/8-27
F NPFT; NPSF;
Carbon Steel; Hard
Seat
1/8-27 M x 1/4-18
F NPFT; NPSF;
Stainless Steel;
Soft Seat
SAE Divider Valve Outlet Check Valves
7/16-20 M X 7/1620 F; Stainless
Steel; Hard Seat
7/16-20 M x 7/1620 F; Stainless
Steel; Soft Seat
563195509-350-010
564325463-001-580
––
–463-001-585
Page 6
L10103MHH Modular Divider Valves
DIMENSIONS
SIDE VIEW
1.656
(42.06)
.406
(10.31)
.734
(18.85)
.922 (TYP)
(23.41)
1.125
(28.58)
Inches/(mm)
2.188
(55.56)
TOP VIEW
BLEED SCREWS
(TORQUE TO
1-2 FT-LBS)
LUBE OUTLET
(TYPICAL)
PISTON ENCLOSURE PLUG (TYPICAL)
(TORQUE TO 12-15 FT-LBS)
1.500
(38.1)
LUBE
INLET
.781
(19.9)
Port Sizes
InletOutlet
1/4-18 (F) NPSF1/8-27 (F) NPSF
7/16-20 (F) SAE7/16-20 (F) SAE
Qty of Section"A"
33.578 (90.88)
44.500 (114.30)
55.422 (137.71)
66.344 (161.13)
77.266 (184.55)
88.188 (207.97)
OUTLET IS PLUGGED ON
ONE SIDE WHEN WORKING
SECTION IS SINGLED
MOUNTING SCREW
(TYPICAL) (TORQUE TO
8-9 FT-LBS)
INDICATOR PORT
(TYPICAL) (SPECIAL
THREAD, TORQUE TO
8-9 FT-LBS)
FRONT VIEW
3.000
(76.2)
1.750
(44.4)
.625
(15.9)
.28
(7.1)
.484
(12.3)
"A"
(12.3)
.484
SPECIFICATIONS
MaterialSteel Body (Corrosion Protected)
Steel Piston (Honed Fit)
LubricantPetroleum or Synthetic Oil only
Max Pressure6,000 psi for Petroleum Oil only
7,500 psi for Petroleum or Synthetic Oil
Max Operating
Temperature
Max Cycle Rate200 cpm
Divider Valve Assembly Net Weight
3 Section5.9 lb (2.7 kg)
4 Section7.3 lb (3.3 kg)
5 Section8.7 lb (4.0 kg)
6 Section10.2 lb (4.6 kg)
7 Section11.6 lb (5.6 kg)
8 Section13.0 lb (5.9 kg)
Buna-N O-Rings: 200º F (93º C)
Fluoroelastomer O-Rings: 350º F (163º
C)
Page 7
.281 (7.137) DIA
(4) MTG HOLES
TIE ROD AND NUT (TYPICAL)
(TORQUE TO 5-8 FT-LBS)
ORDERING INFORMATION
XXX–XXX–X–X–XX–X–XX
SERIES OF DIVIDERS
MHH - High Pressure Compressor to 7,500 psi (fluoroelastomer seals)
DIVIDER VALVE ACCESSORY OPTIONS (OMIT WHEN NOT REQUIRED)
P - Assembly of Performance Indicators (in all working outlets **)
C - Assembly of External Check Valves (in all working outlets **)
B - Assembly of Performance Indicators & Check Valves (in all working outlets **)
NUMBER OF SECTIONS
3 - Three 6 - Six
4 - Four 7 - Seven
5 - Five 8 - Eight
WORKING SECTION CAPACITY
06 - 0.006 cu. in. 18 - 0.018 cu. in. BP - Bypass
09 - 0.009 cu. in. 24 - 0.024 cu. in.
12 - 0.012 cu. in. 30 - 0.030 cu. in.
TYPE OF VALVE SECTION
T - Twin Valve S - Single Valve - RH Outlet L - Single Valve - LH Outlet
B - Twin Valve w/Cycle Pin Right C - Single Valve w/Cycle Pin Right - LH Outlet D - Single Valve w/Cycle Pin Right - RH Outlet
H - Twin w/Cycle Pin Left J - Single w/Cycle Pin Left - RH Outlet K - Single w/Cycle Pin Left- LH Outlet
CROSS PORTING OPTION (OMIT WHEN NOT REQUIRED)
CR - Right Hand Side
CL - Left Hand Side
CB - Both Sides
**Performance Indicator/Check Valve part number must be
specified on order.
If a Proximity Switch is required, order as a separate item
(see bulletin L15600).
NOTES:
1. Right/left hand is determined when viewing front of
6. Single valve can be cross ported on one side only.
divider valve assembly with inlet at top.
7. Cycle pins are limited to applications of 3,500 psi max.
2. Working sections are specified starting from inlet
section down.
8. Cycle pins are available on MHH 18, 24 & 30 size
valves only.
3. When valve is cross ported, its outlet is plugged and
output is diverted to next valve farthest from inlet.
9. Fsmech proximity switches can be used on all sizes of
MHH working sections.
4. Last valve in divider assembly, farthest from inlet,
cannot be cross ported.
10. All divider valve assemblies must have a minimum
of 3 working sections and a maximum of 8 working
5. When valve is a twin, both outlets in its sub-plate must
sections.
be used. When valve is a single, only one outlet in its
sub-plate can be used and the other must be plugged.
All written and visual data contained in this document are based on the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice.
Contact us today!
To receive product information or talk with a Graco representative,
call 800-533-9655 or visit us online at www.graco.com.