How Viking Pump's O-Pro® Barrier Seal Works

Viking Pump's O-Pro® Barrier seal is the latest in sealing technology and is designed to replace packing - creating a robust seal that prevents pump leakage.

With two internal o-rings and an outer bracket o-ring, the barrier seal creates a sealing area between both the seal and shaft - as well as keeping process liquid out of the bracket - preventing process fluid from becoming trapped.

Quick Tip: Installing a Behind the Rotor Seal

Welcome, in this quick tip video we will guide you through the installation of a behind the rotor Type 1 mechanical seal in Viking pumps with the U-Plus™ bracket. Before installation, ensure the casing, bracket bushing, idler, head, idler pin, and rotor shaft are free of any debris or wear. Replace any worn components. Using an arbor press, install a new lip seal into the bracket until it is flush with the bracket face. Reinstall the seal spacer. Lubricate and install the stationary seal seat into the bracket bore with the lapped side facing out. Avoid touching the seal face directly.

Replacing a Behind the Rotor Seal - 4124C & 4224C Series™

Place a brass or hardwood bar into the port opening to keep the pump from turning. Loosen and remove the lock nut. Remove and discard the lock washer. Loosen the bearing housing set screws. Loosen and remove the bearing housing. Remove the bearing spacer collar. The collar may have come out with the bearing housing. Remove the half- round rings. Next, remove the stainless-steel window guards from the bracket. Loosen and remove the head cap screws. Remove the head by tilting it backward to prevent the idler from falling off the idler pin. Remove and discard the head gasket.

Convert a pump from packing to an O-Pro® Barrier seal in a Viking Pump with the U-Plus™ bracket

Welcome, in this video we will guide you through the conversion from packing to an O-Pro® Barrier seal in Viking pumps with the U-Plus™ bracket. This video applies to these pump models…

Before you begin, please consult the appropriate technical service manual for safety information. A copy of the latest revision can be found on our website at vikingpump.com.

To begin, bend up the tang of the lock washer.

Replacing O-rings in an O-Pro® Barrier Seal

Welcome, in this video we will guide you through the replacement of O-Pro® Barrier seal o-rings in Viking pumps with the U-Plus™ bracket. This video applies to these pump models…
Before you begin, please consult the appropriate technical service manual for safety information. A copy of the latest revision can be found on our website at vikingpump.com.
To begin, bend up the tang of the lock washer.
Place a brass or hardwood bar into the port opening to keep the pump from turning.
Loosen and remove the locknut. Remove and discard the lock washer.

Change from a stuffing box seal to behind the rotor mechanical seal in a Viking Pump

Welcome, in this video we will guide you through the conversion from a stuffing box mechanical seal to a behind the rotor seal in Viking pumps with U-Plus™ bracket. This video applies to these pump models…

Before you begin, please consult the appropriate technical service manual for safety information. A copy of the latest revision can be found on our website at vikingpump.com.

To begin, remove the stainless-steel window guards from the bracket.

Quick Tip! Installing a Component Mechanical Seal in a Viking Pump with the U-Plus™ Bracket

Welcome, in this quick tip video we will guide you through the installation of a stuffing box component mechanical seal in Viking Pump’s with the U-Plus™ bracket. First, place the seal collar onto the shaft with the stepped side facing the end of the shaft. Insert a hex head wrench into the seal access hole and into a set screw to hold the seal collar in place. Install the seal installation sleeve with the taper toward the end of the shaft. Lubricate the shaft and inside of the rotary member of the seal.

Replacing a Component Mechanical Seal in Viking pump's with the U-Plus™ Bracket

Before you begin, please consult the appropriate technical service manual for safety information. A copy of the latest revision can be found on our website at vikingpump.com. To begin, bend up the tang of the lock washer. Place a brass or hardwood bar into the port opening to keep the pump from turning. Loosen and remove the locknut. Remove and discard the lock washer. Loosen the bearing housing set screws. Loosen and remove the bearing housing. Remove the bearing spacer collar. The collar may have come out the bearing housing. Remove the half round rings.

How to replace packing in pumps with the U-Plus™ bracket

Welcome, in this video we will guide you through the replacement of packing in Viking pumps with the U-Plus™ bracket. This video applies to these pump models… Before you begin, please consult the appropriate technical service manual for safety information. A copy of the latest revision can be found on our website at vikingpump.com. To begin, remove the stainless steel window guards from the bracket. Next, bend up the tang of the lock washer. Place a brass or hardwood bar into the port opening to keep the pump from turning. Loosen and remove the locknut. Remove and discard the lock washer.

Quick Tip! Installing a seal into an RTPg Series™ truck pump

Welcome, in this quick tip video we will guide you through the installation of a double lip seal in an RTPg Series™ truck pump. This video applies to these pump models… To begin, place a new lip seal with the flat side up into the seal holder. Using an arbor press and a press fixture large enough to cover the seal, press in the seal until it is fully seated. Next, place the second lip seal with the flat side up into the seal spacer and press in the seal. Using your thumbs, press in the lip seal and spacer assembly into the seal holder. Make sure the lip seal is facing up.