SPW-516 – Stationary Pusher Wet Double Cartridge Seal
SPW-516 – Stationary Pusher Wet Double Cartridge Seal
The SPW-516 by HydroMax Seal is a multi-spring, hydraulically balanced double cartridge stationary seal, designed with an integral flow inducer, barrier fluid quench & drain ports, and secondary O-ring seals for maximum reliability and performance.
This Stationary Pusher Wet (SPW) Double (516) Cartridge Seal features shrink-fitted seal faces and is specifically engineered for equipment with parallel rotating shafts.
The design integrates several innovative features, including directed barrier fluid flow, even face loading through multi-springs, and easy installation via a set screw-driven cartridge configuration. It includes quench, drain, and flush connections and is delivered factory assembled and tested for dependable service in demanding applications.
Product Description
Key Design Features
- Stationary Seal Configuration: Self-aligning seal faces accommodate angular misalignment between the shaft and seal chamber face.
- Integral Flow Inducer: Directs barrier fluid efficiently across both sets of seal faces, enhancing thermal management.
- Large 3/8″ NPT Ports: For Flush, Quench, and Drain connections.
- Cartridge Seal Design: Pre-set seal faces eliminate risk of incorrect face load settings.
- Wide Material Compatibility: Available in various seal face materials to match application-specific needs.
- Factory Assembled & Tested: Delivered ready for quick, secure installation.
Technical Specifications
- Seal Shaft Sizes: 20 mm – 150 mm (1.000″ – 6.000″)
- Inboard Seal Face Combinations:
- Carbon / Tungsten Carbide (Car/TC)
- Carbon / Silicon Carbide (Car/SiC)
- Tungsten Carbide / Tungsten Carbide (TC/TC)
- Tungsten Carbide / Silicon Carbide (TC/SiC)
- Silicon Carbide / Silicon Carbide (SiC/SiC)
- Outboard Seal Face Combinations:
- Carbon / Tungsten Carbide (Car/TC)
- Carbon / Silicon Carbide (Car/SiC)
- Gasket Material: GFT
- Elastomer Options: Viton, ERP, Aflas, Kalrez
- Maximum Shaft Speed: Up to 20 m/s
- Process Fluid Pressure Rating: Up to 20 Barg
- Barrier Fluid Pressure Rating: Up to 16 Barg (232 psig) – shaft size dependent
- Pipework Compatibility: Suitable for Plan 52 and Plan 53 systems
- Temperature Rating: Up to 180°C
Important Notice
⚠️ Warning: The stated safe seal performance values are typical for each condition in isolation. Do not combine maximum limits of speed, pressure, and temperature simultaneously. For application-specific guidance, please contact HydroMax Seal’s Technical Sales Department.
