Convert Pump from Stuffing Box Mechanical Seal to Behind the Rotor Seal - 4127C & 4227C Series™

In this video we will guide you through the conversion from a behind the rotor seal to a component mechanical stuffing box seal in Viking Pump’s stainless-steel pumps – with U-Plus™ bracket and ProPort™ casing. 

This video applies to these pump models:
H4127C, HL4127C, K4127C, KK4127C, L4127C, LL4127C, H4227C, HL4227C, K4227C, KK4227C, L4227C, LL4227C

Quick Tip: Change Port Sizes or Types with ProPort™ Casing

In this Quick Tip video, we will show you how to switch between flange sizes or port types on Viking Pump’s internal gear pumps with the ProPort™ casing.

First, loosen and remove the capscrews securing the existing flange.

Remove the flange.

Remove and discard the gasket or o-ring from the casing.

Repeat for the second flange.

Next, ensure the sealing glands near the casing ports are clean and free of debris.

Flanges or NPT ports can be installed using o-rings or gaskets, depending on process needs.

Convert Pump from Behind the Rotor to Stuffing Box Component Mechanical Seal - 4127C & 4227C Series™

In this video we will guide you through the conversion from a behind the rotor seal to a component mechanical stuffing box seal in Viking Pump's stainless-steel pumps - with U-Plus™ bracket and ProPort™ casing.
This video applies to these pump models:
H4127C, HL4127C, K4127C, KK4127C, L4127C, LL4127C, H4227C, HL4227C, K4227C, KK4227C, L4227C, LL4227C

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.