Rotary Seal Blog

Machine vision metrology for Kalsi-brand rotary seals

In our ongoing effort to continually improve our processes, Kalsi Engineering has invested in a new non-contacting automated machine vision measurement system. This new high-precision inspection machine will be used for dimensional inspection of our rotary shaft seal product line. By using a non-contacting inspection process, we will be able to avoid the elastomer deflection-related […]

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Daniel Alvarez participates in Costa Rica medical mission

When Kalsi Engineering Vice President Daniel Alvarez transitioned to part-time employment on March 17, 2017 after 37 years of service, one of his goals was to have more time for community service — and especially medical mission work. By April 22, 2017, he was in the Grano De Oro region of Costa Rica, participating in […]

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RCD Seals in excellent condition after 200 hours at 100 rpm and 2,300 psi

Introduction Although testing RCD seals is an expensive proposition, we test various seal designs across a range of operating conditions and hardware configurations. This allows us to confirm the performance of our existing RCD seal product line. It also allows us to evaluate and improve experimental seal and hardware designs before offering them for sale. […]

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We presented four new papers at the ASME/NRC Pump and Valve Symposium

Kalsi Engineering, Inc. attended the 13th ASME/NRC Pump and Valve Symposium the week of July 17, 2017 in Silver Spring, Maryland.  The following papers were presented at this conference by Kalsi Engineering. Paper Title: Plant Performance History of an Innovative Gate Valve in Critical Service Applications Abstract: An earlier paper [Reference 1] describes the key features of […]

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Announcing a new revision of the Kalsi Seals Handbook

  Retrospective The newest revision of our rotary seal handbook was posted to our website on June 25, 2017. We thought this occasion would be a good time to look back through our company archives to review how it all began. Sales of our initial high pressure seal design commenced in 1980s. Because of our […]

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A 200-hour test of 10-1/2” RCD Seals at 100 rpm and 2,300 psi

Introduction We test our RCD seals in a variety of conditions, to ensure that our customers can meet their goals for the dynamic pressure rating test established by API Specification 16RCD (Specification for Drill Through Equipment—Rotating Control Devices). Since we are conducting full-scale tests, we are also learning useful things about implementing RCD seals in […]

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A new rotary seal with bi-directional pressure and rotation capability

Overview Kalsi Engineering has developed a hydrodynamically lubricated rotary seal that can operate with up to 1,000 psi (6.89 MPa) differential pressure acting from either side of the seal. This new seal, known as the BDRP™ (Bi-Directional Rotation and Pressure), also operates in both directions of rotation. The ability to handle bidirectional pressure and bidirectional […]

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Isken Ward, Chief Administrative Officer of Kalsi Engineering

  A familiar face has reappeared at Kalsi Engineering, Inc. (KEI). Dr. Kalsi’s daughter, Isken Ward, returned to KEI in 2014, and is presently serving as Chief Administrative Officer.  Her previous employment at Kalsi Engineering was from 1987 to 1995. During that time, she was involved in many aspects of the business.  She supported the […]

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Testing high pressure RCD seals at 2,300 psi with large extrusion gaps

Introduction To help our customers meet their high pressure rotary control device (RCD) goals, we have performed characterization testing of our 10.50” (266.7mm) PN 682-20-318 plastic lined RCD seals. The testing was performed at several different pressures, including duration testing at 2,300 psi (15.86 MPa). The 2,300 psi test pressure simulates a lubricant overpressure type […]

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Celebrating Daniel Alvarez’s 37 years of achievement at Kalsi Engineering

On Friday, March 17, 2017, Kalsi Engineering held a luncheon to celebrate Daniel Alvarez’s 37 years of service with the company, and the beginning of his transition to part-time work. He had thoughts of retiring, but we convinced him to remain employed part-time instead. Although Daniel began working for Kalsi Engineering in 1980, his long […]

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