Seal Type | Viking Pump

Pump Choices in Chocolate and Confectionery Processing: Lobe/CP Pumps vs. Internal Gear Pumps

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Unlike food processors who primarily use centrifugal pumps, chocolate and confectionery processors have two main preferences for handling viscous liquors, chocolates, sugars and other confectionery liquids: Rotary Lobe / Circumferential Piston (CP) pumps and Internal Gear Pumps. These Positive Displacement-type pumps are chosen due to various reasons. But which is best?

Pump Report | O-Pro® Seals

One of the most critical parts of any rotary pump is the shaft seal. In part 2 of our 5 part series on seals we take a closer look at Viking Pump's patented O-Pro® seal.

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

API 682 Seal

A special cartridge mechanical seal which has been designed and tested to the American Petroleum Institute’s API 682 standard.

Cartridge Seal

A mechanical seal or lip seal(s) contained in a preassembled housing to aid in the seal’s installation, maintenance, and replacement.

O-ring Seal

Any seal consisting of one or more elastomeric O-rings. These may be static seals wherein there is no relative motion between parts (i.e. an O-ring seal between a pump casing and bracket) or dynamic seals wherein the seal is created between a moving shaft and a stationary housing (i.e. O-Pro® shaft seals).

Sealless Mag Drive

Comprised of two independent shafts; one connects to the drive and other connects to the pumping elements. A magnetic coupling transmits the rotation of the drive shaft to the driven shaft inside the pump. Click here to view the Pump Report on this topic.

Component Mechanical Seal

Consist of two basic parts called faces. One face rotates with the shaft, while a second is held stationary in the pump housing. The primary seal is created between these two seal faces. Click here to view the Pump Report on this topic.

Packing

Typically consists of braided or formed rings that are compressed in the stuffing box of the pump. As the packing is tightened, it squeezes up against the shaft and the stuffing box wall to create the seal. Click here to view the Pump Report on this topic.

Behind the Rotor Seal

Any pump wherein the seal is located directly behind the rotor, isolating the shaft bushings or bearings from the pumped liquid. An alternative to pumps with seals located in the stuffing box.

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