Question 1

What is a horizontal (side-entry) mixer seal?

Accepted Answer

A dual cartridge mechanical seal designed for side-entry mixers on large storage tanks — commonly used in oil, pulp, and chemical storage. Barrier fluid keeps process out of the environment.

Question 2

Are Astra seals compatible with major OEM pump brands?

Accepted Answer

Yes. Every Astra seal is engineered as a direct dimensional and performance replacement for major OEMs including John Crane, Flowserve, EagleBurgmann, AESSEAL, Chesterton, and Sepco. Provide the OEM part number or a photo and we cross-reference it to the matching Astra model.

Question 3

What materials are available?

Accepted Answer

Standard face combinations include Silicon Carbide (SiC) vs Carbon, SiC vs SiC, and Tungsten Carbide (TC) vs TC. Elastomers include Viton (FKM), EPDM, NBR, Aflas, Kalrez, and PTFE. Custom material specs are available for aggressive or high-purity media.

Question 4

What is the typical lead time?

Accepted Answer

Standard cartridge and component seals ship in 2–4 weeks. Custom-engineered designs typically take 6–10 weeks. Emergency and expedited production is available on request.

Mixer Seal — Horizontal

AS SB2

AS HJCK-50

AS Waukesha 220U2

AS Waukesha 218-318

AS Type TL

AS AB30

AS D12

AS SB1

AS SE2C-55-QREG-305005-00

Mixer Seal — Horizontal — Common Questions

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Mixer Seal — Vertical

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