EVR Selector Guide

Electric variable ratio (EVR™) metering enables manufacturers to mix, meter and dispense two-component (2K) sealants and adhesives using the same equipment.

Identify the ideal setup for your material and production requirements in three steps.

These base systems are meant to cover the most common applications you may need. This includes:

  1. The electric motors to power the system’s pumps
  2. A transformer of 480volt is needed
  3. Stainless steel inlet and outlet fittings with pressure transducers
  4. Communications Gateway Module (CGM) options for either Ethernet/IP or PROFINET

Note: These base systems DO NOT include the Z-Pumps. These must be selected separately and installed after delivery.

Base EVR System Voltage Communication Gateway Module PN Select only 1
System, EVR, SS, No Pumps, Outlet assembly, Inlet assembly with high-pressure rated transducers, Ethernet/IP CGM 240 volt Ethernet/IP EVRU108
System, EVR, SS, No Pumps, Outlet assembly, Inlet assembly with high-pressure rated transducers, PROFINET CGM 240 volt PROFINET EVRU109
System, EVR, SS, No Pumps, Outlet assembly, Inlet assembly with high-pressure rated transducers, Ethernet/IP CGM 480 volt Ethernet/IP EVRU110
System, EVR, SS, No Pumps, Outlet assembly, Inlet assembly with high-pressure rated transducers, PROFINET CGM 480 volt PROFINET EVRU111

Add Inlet Regulator Kit

Optional Feature.

It is recommended that you install regulators on the inlets of your Z-Pumps for consistent operation changing environments and material conditions.

EVR Inlet Regulator kit Assembly Number Select only 1 or none
EVR Mastic Inlet Regulator Stainless Steel 26A704
EVR Mastic Inlet Regulator Carbon Steel 26A705

The Z-Pumps will be selected according to the volumetric ratio, which can be adjusted on the EVR with up to a 5:1 multiplier.

For instance, if you select 40cc and 80cc pumps, this results in a 2:1 ratio, allowing you to run the machine from 1:1 up to 10:1. To achieve an even broader ratio, select pumps with a wider volumetric ratio.

To achieve a 50:1 ratio for boosted urethanes, use 160cc and 10cc pumps, then enter 3.13:1 on the display. 160/10 = 16:1 ratio x 3.13 = 50:1.

Size S4 – Standard
S8 – Elite High Wear
PN Select two Z-Pumps Total
10cc S4 L010S4
40cc S4 L040S4
40cc S8 L040S8
80cc S4 L080S4
80cc S8 L080S8
100cc S4 L100S4
100cc S8 L100S8
160cc S4 L160S4
160cc S8 L160S8

The dispensing valve you choose depends on your material and application needs.

A) The MD2 Valve is the most common choice for 2K sealants and adhesives, featuring a single acting opening/closing mechanism and offering different ratio ranges for specialty coatings.

B) The TC Valve allows for 2K dispensing and individual control of each component, enabling base purging of static mixers.

C) The MD-X Valve is the highest flowing 2K valve, capable of exceeding a flow rate of 75cc/sec.

Some of the below accessories are required for certain valves, while other optional accessories are used in complex applications and when dispensing difficult materials.

A) MD2 valve for static mixing and recirculation as an option.

MD2 Applicator Assembly Number Select only 1 or none
MD2, 1:1, Soft Seats 255179
MD2, 1:1, Hard Seats 255180
MD2, 10:1, Soft Seats 255181
MD2, 10:1, Hard Seats 255182
Elite MD2, 1:1, hard seat, snuff-back (0.5 - 10cc/s) 255901
Elite MD2, 10:1, hard seat, snuff-back (0.5 - 10cc/s) 255902
Elite MD2, 1:1, hard seat, forward acting (10 - 75cc/s) 255900
EVR MD2 Valve Accessories Assembly Number
Remote Solenoid Valve Kit (Must select with MD2) 26C485 Select 1 or none
MD2 Valve Restrictor kit 25B185 Select 2 or none
Switch Assembly 255244 Select 1 or none
Handle/Hanger Assembly 255273 Select 1 or none

The recirculation kits are most often used when there are suspended fillers in a low-viscosity material. By recirculating these, the fillers are prevented from settling out of the material.

EVR Recirculation kits (Use for MD2), Includes iQ Valves Assembly Number Select only 1 or none
Recirc; EVR with transducer and CGM, Includes iQ valves 25F345
Recirc; EVR with No transducer or CGM, Includes iQ valves 25F346
Recirc; EVR with No transducer, but with CGM, Includes iQ valves 25F347

The EVR Tip Kit allows for on/off operation at the outlet of the static mixer, minimising dripping for low viscosity materials and allowing for the connection of Luer Lock style needles.

EVR Tip kit (Use with MD2) Assembly Number
EVR with Tip kit, MD2, 3/8" mixer 25F351 Select 1 or none
EVR with Tip kit, MD2, 1/4" mixer 25F352 Select 1 or none

B) The TC Valve allows for 2K dispensing and individual control of each component, enabling base purging of static mixers.

TC Applicator (Requires remote valve kit 25F343) Assembly Number Select only 1 or none
TC, 1:1, Standard U-cup seal 26D918
TC, 1:1, High Wear U-cup seal 26D919
TC, 10:1, Standard U-cup seal 26D920
TC, 10:1, High Wear U-cup seal 26D921
EVR Recirculation kits (Use for TC) Includes iQ Valves Assembly Number Select only 1 or none
Recirc; EVR with transducer and CGM, Includes iQ valves 25F345
Recirc; EVR with No transducer or CGM, Includes iQ valves 25F346
Recirc; EVR with No transducer, but with CGM, Includes iQ valves 25F347
EVR TC Valve Accessories Assembly Number Select 1 or none
Remote Dual Solenoid Valve Kit (Must select with TC) 25F343

C) The MD-X Valve is the highest flowing 2K valve, capable of exceeding a flow rate of 75cc/sec.

MDX Assembly Number Select only 1 or none
Valve, Dispense, MDX 26D274
EVR MDX Valve Accessories Assembly Number
Remote Solenoid Valve Kit (Must select with MDX) 26C485 Select 1 or none
EVR Air Nucleation kit (Voltex Only) Assembly Number Select only 1 or none
EVR with Air Nucleation 25T717
EVR with Air Injection, 69 bar 25U461

More accessories can be found in the EVR parts manual.

Hoses & Fittings for Z-Pumps to MD2 Valves:

Hoses & Fittings Size PN for Hose PN for Z-Pump to Hose Fitting PN for Hose to MD2 Valve Fitting
15 FT 2mm 17K152 EKH001 EKN001
10ft 1/8in 25E525 EKH001 EKN001
10ft 3/16in 16C506 EKH001 EKN001
10ft 1/4in 16C515 EKH002 EKN002
10ft 5/16in 16K817 EKH003 EKN003
10ft 3/8in 17K284 EKH004 EKN004
10ft 1/2in 17K263 EKH005 EKN005
10ft 5/8in 17K266 EKH006 EKN006
10ft 3/4in 17K273 EKH007 EKN007

Hoses & Fittings for Supply Pumps to Z-Pumps:

Hoses & Fittings Size PN for Hose PN for Supply Pump to Hose Fitting PN for Hose to Z-Pump Fitting
10ft 3/4in 17K273 EKA001 EKE001
10ft 1in 17K278 EKA002 EKA002
15ft 3/4in 17K247 EKA001 EKE001
15ft 1in 17K279 EKA002 EKA002

Contact Us


Finalise Your Configuration

The configuration of your electric variable ratio system is based on your materials and production needs. Get in touch with us for an application and process review to find solutions that align with your requirements.

Please enter a value
Please enter a value
Please select
Your email address is required
Please enter a value
Please enter a value
Graco