Single Cartridge Mechanical Seal SPW682-123
Single Cartridge Mechanical Seal SPW682-123
Overview
HydroMax Seal SPW682-123 | API682-Compliant Single Cartridge Seal for Plan 23 Systems
The SPW682-123 is a high-performance single-cartridge mechanical seal featuring an integral inboard floating restriction bush within the gland plate and an outboard floating restriction bush. Designed in compliance with API682 standards, it is engineered for use in Oil & Gas applications and supports API Plan 23 arrangements on API610 V8 onwards process pumps.
This stationary seal design is delivered as a complete cartridge solution, built for high-temperature, high-speed, and critical service conditions.
Product Description
Design Features
- Flush orifice for Plan 23 systems
- Quench and Drain orifices for Plan 62 configurations
- Large 1/2″ NPT port connections for improved fluid management
- Directed circulation path around the inboard faces via an integral deflector in the seal gland
- API682-compliant radial clearances between rotary and stationary components
- Monolithic seal faces for enhanced durability in high-temperature conditions
- Stationary seal design with self-aligning face—ideal for high-speed equipment
- Multi-spring configuration ensures even face loading
- Designed for use with HydroMax Plan 23 Heat Exchanger systems
Technical Specifications
| Seal Shaft Sizes | All |
| System Vessel Size | 12L and 28L |
| Inboard Seal Face Combination | TC / TC Ant. Car / TC Ant. Car / RB SiC RB SiC / RB SiC |
| Gasket | Spiral Wound Stainless Steel, Graphite |
| Secondary Sealing | Viton, Alfas, ERP, Kalrez |
| Shaft Speeds | Up to 4,000 rpm |
| Pressures | Up to 40 Barg |
| Instrumentation | Used with Plan 23 piping system |
| Temperatures | Up to 350°C |
The SPW682-123 is an advanced stationary cartridge seal designed for critical performance in demanding API682-compliant applications, offering robust thermal handling and precise fluid control.
Typical Applications & Industry Use Cases
The SPW682-123 Single Cartridge Mechanical Seal is a high-performance cartridge seal engineered to meet API 682 requirements for API Plan 23 piping arrangements on API610 V8 and later process pumps. Designed for demanding high-temperature and high-speed applications, this seal features dual floating restriction bushings that help regulate pressure and flow within the seal chamber, enhancing reliability in critical services.
Industries Served
Oil and gas processing
Petrochemical and refining operations
Chemical process plants
Water and wastewater treatment
Power generation and utility pumping
Heavy industrial fluid handling
Equipment & Use-Case Scenarios
- API Plan 23 mechanical seal support on process pumps
- Services involving elevated temperatures and high shaft speeds
- Applications requiring controlled flush fluid circulation and leak containment
- Installations where cartridge seals simplify maintenance and enhance reliability
Why It Fits These Applications
- Plan 23 flush port: Promotes efficient thermal control through recirculated barrier fluid to the seal faces
- Quench and drain support: Additional ports accommodate Plan 62 fluid cooling and leak control
- Dual restriction bushings: Integrated inboard and outboard floating bushings improve pressure regulation and flow control
- Large port orifices: 1/2″ NPT seal port orifices support robust fluid handling
- Monolithic seal faces: Provide durability and thermal resistance for high-temperature services
- Self-aligning stationary design: Enhances performance in high-speed operation
- Multi-spring configuration: Ensures uniform face loading and extended service life
Installation Guidelines
Pre-Installation Preparation
Clean and thoroughly inspect the pump shaft, seal chamber bore, and gland surfaces. Remove corrosion, debris, or surface flaws to ensure proper sealing surface contact and accurate alignment.
Cartridge Installation
Slide the SPW682-123 cartridge seal into the seal housing, ensuring the flush, quench, and drain ports are correctly oriented according to your Plan 23 piping arrangement. Secure the cartridge seal to the recommended torque specification.
Alignment & Fit
Ensure the stationary seat and seal faces are correctly aligned within the housing to maintain uniform face contact and optimal performance.
Startup Procedure
Before full duty operation, initiate flush and quench fluid circulation. Gradually bring the pump up to operating speed and pressure while monitoring for leakage, vibration, or abnormal temperatures.
Maintenance & Inspection Best Practices
- Routine Visual Checks: Inspect the seal region during operation for signs of fluid leakage, vibration, or unusual heat
- Seal Face Monitoring: During planned downtime, check seal faces for wear, deposits, or surface degradation
- Restriction Bushings: Assess inboard and outboard restriction bushings for signs of wear or obstruction
- Operating Logs: Record pressure, temperature, and speed trends to support predictive maintenance
- Spare Parts Planning: Maintain stocks of replacement faces, secondary seals, and bushings to minimise downtime
Service & Support Options
- Application Review: Verify that materials and seal configuration match fluid chemistry and operating conditions
- Installation Support: Technical guidance to help ensure correct orientation and secure seating
- Preventive Maintenance Scheduling: Establish inspection and parts replacement intervals based on duty cycles
- Seal Upgrade Evaluation: For more demanding conditions, evaluate alternative configurations or enhanced materials for improved performance
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Contact HydroMax Seal
Contact HydroMax Seal today for innovative solutions, expert guidance, and over a century of engineering excellence. Your journey to mechanical sealing excellence starts with HydroMax Seal!
E-Mail: sales@hydromaxseal.com
Address: 18511 Beaumont Hwy Building D
Houston, TX
77049
