CSW-610 Compact Double Mechanical Seal – High-Performance Design
CSW-610 Compact Double Mechanical Seal – High-Performance Design
Overview
The CSW-610 by HydroMax Seal is a compact double-cartridge mechanical seal featuring an integral, bi-directional barrier fluid pumping ring. This seal is purpose-built for equipment with short outboard lengths and small cross-sections, such as compact process pumps used in the Pulp & Paper and Water & Wastewater industries.
Engineered as a complete cartridge mechanical seal system, the stationary seal design supports piping plans 53, 53A, 53B, and 53C for superior compatibility and performance.
Product Description
Key Design Features
Large Seal Port Orifices: 3/8″ NPT Barrier Fluid In (BI) and Barrier Fluid Out (BO) for Plan 53 or 52.
Efficient Heat Removal: Barrier fluid is directed to the inboard faces through an integrated deflector within the seal gland. The outboard exit ensures optimal heat dissipation from both seal face sets.
API682 Compliant: Radial clearances between rotary and stationary components meet best practice standards.
Monolithic Seal Faces: Engineered for enhanced high-temperature performance.
Stationary Seal with Self-Aligning Face: Ideal for high-speed equipment.
Multi-Spring Arrangement: Springs are isolated from the process fluid.
Bi-Directional Pumping Ring: Highly efficient barrier fluid circulation.
Plan 53 System Compatibility: Designed to be used with HydroMax Seal Plan 53, 53A, 53B, or 53C support systems.
Technical Specifications
| Seal Shaft Sizes | All sizes supported |
| System Vessel Sizes | 3.17 gallons and 7.40 gallons |
| Inboard Seal Face Combinations | TC/TC Car / TC Ant. Car / RB SiC Ant. Car / TC RB SiC / RB SiC |
| Outboard Seal Face Combinations | Car / TC Car / RB SiC Ant. Car / RB SiC Ant. Car / TC TC / TC |
| Gasket Materials | PTFE, AF1 |
| Secondary Sealing Options | Viton, Alfas, ERP, Kalrez |
| Maximum Shaft Speed | Up to 4,000 rpm |
| Maximum Pressure | Up to 362.6 psig |
| Instrumentation | Compatible with Plan 53 piping system |
| Temperature Range | Up to 482°F |
Engineered for Compact Applications
The HydroMax CSW-610 is specifically crafted for equipment with space limitations, including narrow stuffing box bores and small outboard dimensions. Its innovative stationary seal architecture incorporates best-practice design features, as highlighted in our technical blogs and white papers.
Typical Applications & Industry Use Cases
The CSW-610 Compact Double Mechanical Seal is a compact double-cartridge mechanical seal designed with an integral bi-directional barrier-fluid pumping ring. It is purpose-built for equipment with short outboard lengths and narrow cross-section seal chambers — common in compact process pumps used in pulp & paper, water & wastewater, and other process industries.
Industries Served
Pulp & paper processing
Compact equipment where space around the stuffing box/gland area is limited.
Water & wastewater treatment
Process pumps, booster sets, and compact skids requiring double-seal reliability in slim profile installations.
Chemical & general process plants
Pumps handling clean or lightly contaminated fluids in restricted configurations.
OEM compact pump systems
Where envelope size is constrained, yet a double seal with barrier fluid circulation is still required.
Equipment & Use-Case Scenarios
- Process pumps with small “x-section” seal chambers and minimal outboard gland clearance — the CSW-610 is designed specifically for these constraints.
- Dual-seal installations using barrier-fluid plans such as Plan 53, 53A, 53B, or 53C, where the compact cartridge construction still allows external loop integration.
- High-speed pumps (up to 4,000 rpm) feature a self-aligning stationary seat and hydraulic balance that improve face stability.
- Situations where barrier fluid heat removal and contamination control are critical and must fit within tight mechanical envelopes.
Why It Fits These Applications
- The integrated bi-directional barrier-fluid pumping ring enables effective circulation within the cartridge, helping maintain barrier-fluid cleanliness, face lubrication, and heat removal, even in constrained designs.
- A multi-spring design located outside the process fluid ensures reliable spring force and reduced exposure to particulate or aggressive media.
- The compact cartridge format simplifies retrofit into existing small-envelope pumps without major frame modifications, offering upgrade flexibility.
- Rated for pressures up to ~25 bar and temperatures up to ~250 °C (depending on materials), supporting robust process reliability in compact format.
Installation Guidelines
Before installation, ensure the pump shaft, seal chamber bore, and gland face are clean, true, and within specified tolerances. Any misalignment or contamination will compromise cartridge performance.
Carefully insert the CSW-610 cartridge seal into the gland without forcing the barrier-fluid pumping ring or misaligning the cartridge; ensure the barrier fluid ports (inlet/outlet) align with the support-system piping.
Secure the clamp set-screw drive and finish gland bolting in accordance with the mounting specification. Confirm barrier-fluid supply and return (for Plan 53 family piping) are correctly connected and vented.
During commissioning, start barrier-fluid circulation and confirm that flow, pressure differential, and temperature are within expected parameters before putting the pump into service.
Record initial seal performance data (barrier fluid pressure, face temperature, flow) as a baseline for future maintenance comparisons.
Maintenance & Inspection Best Practices
- Monitor the barrier-fluid loop regularly: filter condition, fluid cleanliness, differential pressure, and heat-exchanger (if fitted) performance. Any drop in expected flow/pressure could indicate obstruction or contamination of the pumping ring.
- During scheduled shutdowns, inspect the cartridge for wear or face damage; remove the cartridge if feasible, and check the faces, O-rings/gaskets, and springs.
- Maintain a log of operating conditions: fluid makeup and contamination levels, shaft speed changes, and pressure/temperature excursions. This helps predict seal life and scheduling of preventive replacements.
- Replace secondary seals (O-rings, gaskets) as part of preventive maintenance, and ensure the barrier fluid remains at the correct composition and contamination level to avoid excessive wear.
- If process or pump conditions change (higher speed, increased pressure, increased solids, or a temperature rise), review the seal’s suitability and consider an upgrade or an alternate material specification with your sealing partner.
Service & Support Options
- Pre-installation consultation: assistance with correct cartridge specification (seal face materials, elastomer choice, barrier-fluid plan compatibility) to ensure fit-for-purpose selection.
- On-site or remote commissioning support: validation of barrier-fluid loop performance, face-temperature monitoring, and cartridge set-up.
- Spare parts kits specific to CSW-610 include seal faces, O-rings/gaskets, barrier-fluid pumping ring components, drive set-screws, and gland clamp hardware.
- Upgrade service: as service conditions evolve (e.g., higher speeds, corrosive media, or constrained space), options exist to migrate to exotic alloys, alternative face materials, or an adapted cartridge version.
- Preventive-maintenance programme: scheduled inspections, performance tracking, and reliability-focused review help reduce downtime, extend seal life, and improve cost-effectiveness.
With proper installation, ongoing maintenance, and clear performance tracking, the CSW-610 offers a compact yet high-reliability double-seal solution ideally suited to space-constrained pump installations while delivering the barrier-fluid performance usually reserved for larger systems.
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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
