Introduction The high pressure washpipe assemblies used in oil well drilling are subjected to difficult sealing conditions. A conventional washpipe packing fails in only a few hours when subjected to […]

Introduction to rotating cement heads One of the critical steps in completing an oil or gas well is pumping cement into the well annulus that is located between the casing […]

A new chapter titled “Using Kalsi Seals in side port swivels” has been added in the Application Engineering section of our rotary seal handbook. This new, well-illustrated chapter describes the […]

After several years of development, Kalsi Engineering is pleased to announce a new line of 0.335” (8.51mm) cross-section Axially Constrained Seals: The 673 series. This new series offers improved abrasive […]

Kalsi Seals-brand rotary seals have been used in rotating control devices (RCDs) for many years. Prior to this year, however, usage has been restricted to lubricant overpressure type RCDs, where […]

Some large diameter equipment, such as hydraulic swivels and passive rotating control devices (RCDs), has limited available torque to initiate rotation. When limited available torque is combined with higher pressure […]

Introduction Most Kalsi-brand rotary seals are offered in a choice of materials with no single material being appropriate for all applications. Material selection often involves tradeoffs. Understanding the basic attributes […]