SAPI-1131 - Single cartridge stationary seal with integral vortex breakers for Plan 31

The SAPI-1131 is a single cartridge mechanical seal with innovate integral vortex breakers in the gland plate. The seal is designed for a wide range of process pump applications from slurry pumps in the minerals extraction sector or to API 610 Ed.6 to Ed.8 pumps in the oil and gas sector.

The innovative stationary seal design is offered as a complete cartridge mechanical seal solution and is designed for API Plan31 arrangements.

Design Features include;

  • Bi-directional Flush orifice for Plan 31 systems. Important: The flush orifice does not 'shot blast' the stationary seal face when used with process liquids containing suspended particles.
  • Large Seal port orifices - Flush 1/2" NPT
  • Gland plate with integral vortex breakers
  • Monolithic seal faces for improved high temperature performance
  • Stationary seal design with self-aligning stationary seal face. ideal for high speed applications,
  • Multi-spring design with springs out of the process fluid.
  • Can be used in conjunction with the Stanseals Plan 31 Cyclone Separator system and Sample collection pot.
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Supply/Design Characteristics
Seal Shaft Sizes
ALL
System Vessel Size
Inboard Seal Face Combination
Car/TC, Ant.Car/RB SiC, TC/TC, TC/RB.SiC, RB.SiC/RB.SiC
Outboard Seal Face Combination
Gasket
Spiral Wound S/S, Graphite
Secondary Sealing
Bellows
Inboard Wetted Parts
316 S/S
Elastomers
Viton, Aflas, ERP, FFKM
Shaft Speeds
up to 30 m/s (6,000 ft/min) **
Pressures
up to 25 Barg (392 psig) **
Temperature
up to 150 deg C (300 deg F) **
Instrumention
Used in conjunction with a Plan 31 piping system
Pipework & Fittings
Temperatures
up to 150 deg C (300 deg F) **

The SAPI-1131 is an innovative stationary seal, designed for a wide range of Plan 31 applications.

The seal also incorporates best practice features, as detailed in our technical blogs and white papers.

Safe Operating Limits:

This seal incorporates best practice features and innovation as detailed in our technical blogs and white papers.

** Apply "industry standard" Pressure, Speed and Temperature de-rating factors, by shaft size and application. The safe seal performance characteristics are typical characteristics for each variable in isolation. The individual upper limit values of each variable should NOT be used in multiple combinations of Speed, Pressure and Temperature. Contact our Technical Sales Department for further details.

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