Graco Reactor H-VR User Manual
Reactor® H-VR
Variable Ratio Hydraulic Proportioner
Simple-to-operate variable ratio dispensing system
• For applications that require a range or difference in volumetric ratio
• Allows you to spray ratios from 1:1 to 2.5:1
• Infinitely adjustable volume ratio
• Easy to dial in and adjust the exact output of both A and B materials
• Dispenses polyurethane foams and polyurea coatings
©2009 Graco Inc. Electronic Only 07/09 All other brand names or marks are used
for identification purposes and are trademarks of their respective owners. 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.
Simple operation
The Reactor H-VR provides infinitely adjustable
volume ratio since both A and B pumps can
be adjusted to dispense the correct amount
of material. The ratio adjustment wheel allows
you to dial in the exact volume ratio. As you
adjust the volumetric ratio, the stroke length
on the fluid pump is shortened or lengthened
to reduce or increase the volume of material
output. Once you have dialed in the correct
volume ratio, simply secure the locking arm
to prevent ratio fluctuations.
For consistent, uniform mix
of unique materials
Technical Specifications
Maximum output
At 1:1 ratio: .........................30 lb/min (13.6 kg/min) or 3.0 gpm (11.4 lpm)
At 2.5:1 ratio: .............................20 lb/min (9 kg/min) or 2 gpm (7.6 lpm)
Maximum working pressure (at 1:1 ratio) .......................3500 psi (240 bar, 24.0 MPa)
Minimum working pressure (at 1:1 ratio) ......................... 1200 psi (83 bar, 8.3 MPa)
Maximum hose length ................................................ 410 ft (125 m)
Maximum heater wattage .............................................. 15,300 watts
Ratio range .................................................. 1:1 to 2.5:1 (A:B or B:A)
Ratio accuracy ............................................. +/- 5% of ratio (1:1 to 2:1)
+/- 10% of ratio (2:1 to 2.5:1)
Power requirements
71A–230V, 3-ph ............................................ Part No. 256886
41A–400V, 3-ph ............................................ Part No. 256887
Weight.............................................................955 lb (433 kg)
Dimensions.................................. 58 H x 40 W x 40 D in (147 x 102 x 102 cm)
Operation manual ......................................................... 313539
Repair manual ........................................................... 313540
Locking Arm
Prevents fluctuation
of material ratios
Ordering Information
Available as a complete proportioner
that includes variable ratio frame
and steel pallet.
Gun and hose sold separately.
256886 Reactor H-VR, 230-volt
256887 Reactor H-VR, 400-volt
Contact us today!
To receive product information
or to request a hands-on
demonstration,
call 877-844-7226
or visit www.graco.com.
Digital User Interface
Separate temperature and motor controls
allow you to quickly set, maintain and
monitor machine performance
Ratio Adjustment Wheel
Allows you to accurately
dial in exact dispensing ratios
Fluid Pumps
Adjustable stroke length
lets you control
material volume output
Heavy-duty Steel Pallet
Built-in pallet for easy transport includes
rugged caster kit for maneuverability
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