CAPI-74

The advantages of sealing pumps with dual pressurized dry gas seals are becoming widely recognized throughout industry. Also AESSEAL^® has developed a range of pump dry gas seals to suit every application.

The CAPI-74 Face to Face configuration is a stationary design, bi-directional, balanced, internally-mounted, cartridge design pusher seal with multiple springs. Also It is a non-contacting dual seal primarily designed for pumps meeting ANSI/ API standard 682 that can provide zero emissions in service.This design has two seal sets per cartridge assembly utilizing an externally supplied barrier fluid (gas) at a pressure
greater than the process pressure. The barrier gas should be readily available and inert e.g. dry Nitrogen. The standard secondary sealing elements are elastomeric ‘O’ rings. For each face pair, one of the faces is plain and also the other etched with grooves to intentionally create aerodynamic separating forces during operation to sustain a specific fluid film gap. Also The non-contacting nature of the design ensures long life, low power consumption and reduced capital cost for support systems. Also One other major benefit is the lack of contamination for high value products.

Features

• A non contacting seal primarily designed for API 610 pumps which require seals to API 682 standard
• API 682 qualification tested designs
• Can operate within a wide range of operating conditions
• Non-contacting spiral groove face technology
• ZERO process emissions
• Low running costs
• Bi-directional option available
• Specially engineered variants available on request

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