Blue-White MD1 Automatic Degassing Valve Instruction Manual

: June 13, 2024
: Blue-White

Table of Contents

Models
ADV (Automatic Degassing Valve) Replacement Diagram
Installation
Required tools
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

**Blue-White MD1 Automatic Degassing Valve Instruction Manual

**

Models

MD1
CD1

This exclusive technology reduces the risk of vapor lock and eliminates the need for external degassing components, ensuring seamless performance. The ADV System delivers consistent and reliable liquid metering by expelling trapped gases, making it ideal for demanding applications.

These instructions will guide you through the process of replacing original ball checks with the new style ball checks and ADV (automatic degassing valve). Instructions are also provided if you are replacing the two (2) pump stand-off pieces. These new stand-off pieces will further improve the degassing in the pump head and increase flow rate. (Refer to pump datasheet for flow rates.)

ADV (Automatic Degassing Valve) Kits Available

KIT-DVA1| Cartridge Valve Degassing Kit, Aflas (includes six cartridge valves and one de-gas valve)
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KIT-DVE1| Cartridge Valve Degassing Kit, EP (includes six cartridge valves and one de-gas valve)
KIT-DKA1| Cartridge Valve Degassing Kit, Aflas (includes six cartridge valves, one de-gas valve, and two standoffs)
KIT-DKE1| Cartridge Valve Degassing Kit, EP (includes six cartridge valves, one de-gas valve, and two standoffs)

ADV (Automatic Degassing Valve) Replacement Diagram

De-gas Valve
Cartridge Valves
Standoff

Pump Head
Product Overview

Installation

Step by step

Required tools

Phillips torque screwdriver, 1/2” socket wrench

Remove Pump from Service
Remove pump from service and disconnect any suction and discharge tubing / piping.
If removing stand-off pieces, keep the power available to the pump for ease in removing diaphragms.
Remove Manifolds
Remove top and bottom manifolds by hand by unscrewing unions nuts.
Remove Adapters and Cartridges
Remove all four adapters from the pump heads. Twist by hand to remove. Do not use tools. Ball check cartridges can now be removed. Remove all four ball check cartridges. Be careful not to lose adapter o-rings.
Install New Cartridges and ADV
Place new ball check cartridges into adapters. Note the direction of arrows on the cartridges. Be sure arrow goes in direction of flow. Both bottom (suction) adapters will use two (2) new cartridges each. One top (discharge) adapter will use the two (2) new cartridges, and the other top adapter will use the new ADV cartridge. Preferred location of the ADV is on the side of the pump where the suction tubing connects. (For example, id suction tubing/piping connects on right side of manifold, then install the ADV on the right side discharge adapter.)
Re-install Adapters
Re-install each of the adapters by screwing in by hand. Be careful to keep all o-rings in place and seated properly.
Re-install Manifolds
If replacing the pump stand-off pieces, please skip to next page for further instructions. Otherwise, re-install top and bottom manifolds and re-connect tubing / piping. Pump is now ready for service.
Remove Pump Head
With adapters secured to pump heads and manifolds removed from the pump, the pump head assemblies can now be removed. Remove pump head cover. Remove the four screws from each pump head and remove pump heads.
Remove Diaphragms
Power on the pump and run at 5-10% motor speed to allow positioning of one diaphragm at the full stroke position (fully extended out.) Stop pump in fully extended position. This will allow easy removal of the diaphragm by simply unscrewing from pump standoff. Keep white backing piece and back-up washer with diaphragm. Note orientation of these when removing. Repeat the process with the other diaphragm.
Replace Standoffs
Use 1/2” socket wrench to remove stand-off pieces. Grease threads on new standoff. Install new stand-off pieces.
Re-install Diaphragms
Re-install each of the diaphragms/backing/back-up washer using the same process of fully extending the stand-off. Retightening each diaphragm by hand.
Install Pump Heads and Manifolds
To install the pump heads, run the pump so the diaphragm is fully pulled in. Attach the pump head with arrows pointing upwards using the four screws. Tighten each screw at intervals using a star pattern until uniformly secure at 20 in-lbs per screw. Attached pump head cover. Attached manifolds. Pump is now ready for service.