JOHN CRANE · FLORIDA
Mechanical seals for water systems.
Review the exact configuration.
A seal selection starts with the pump, operating conditions, and project requirements. Hudson Pump & Equipment helps Florida customers review John Crane sealing options for potable-water applications and replacement needs.
John Crane mechanical seals · existing product imagery
Manufacturer product information ↗
Pump-specific selectionDimensions, pressure, speed, and fluid
Documented configurationConfirm applicable certifications
Florida supportNew seals and replacement inquiries
BUILT AROUND YOUR APPLICATION
Review the seal design and documentation.
The families below serve different sealing needs. Confirm the current listing, materials, size, and operating limits for the actual seal supplied.
01 / PRODUCT DETAILS
Type 3740 split seal
A wet-running cartridge O-ring split seal. John Crane lists the Type 3740 for clean drinking-water service with NSF-61 compliance. Review equipment access and the required configuration.
02 / PRODUCT DETAILS
Type 4610 cartridge seal
A compact, general-duty single cartridge O-ring seal. The manufacturer lists NSF-61 compliance for clean drinking-water service. Check the seal chamber, shaft, and operating conditions.
03 / PRODUCT DETAILS
Type 5615 family
A single cartridge metal-bellows family with configuration variants. If considered for a potable-water project, request application review and explicit documentation for the selected build; do not infer certification from the family name.
Certification and suitability must be checked for the exact configuration. A component’s listing does not certify the complete pump installation or water-treatment process.
APPLICATION GUIDANCE
Match the equipment
to the operating conditions.
Confirm mechanical fit
Provide pump model, shaft or sleeve diameter, seal-chamber dimensions, gland connection, and available installation space. Include drawings and the current seal designation.
Describe operating conditions
Include seal-chamber pressure, temperature, shaft speed, fluid chemistry, solids, and available flush or support services. Identify startup and upset conditions.
State documentation requirements
Send the project’s required standards, material restrictions, and approval documents. Confirm these against the manufacturer’s current product listing before selection.
HUDSON PUMP & EQUIPMENT
Talk through the details.
Hudson can help organize a new seal or replacement inquiry around the actual pump and process. Share recurring leakage or maintenance concerns so the review considers the installation as well as the seal.
COMMON QUESTIONS
Before you specify.
Should shaft diameter alone determine split versus cartridge selection?
No. Equipment access, seal-chamber geometry, operating conditions, installation requirements, and the exact product design also matter.
Are all seals within a family certified for potable water?
Do not assume so. Request documentation for the size, materials, and configuration being supplied, including any conditions attached to the listing.
What helps identify an existing seal?
Provide the seal designation and drawings if available, the pump nameplate, shaft dimensions, and clear photographs. Include operating conditions and the reason for replacement.
LET’S REVIEW YOUR APPLICATION
Get product support
from Hudson.
Send your operating requirements, existing equipment details, and Florida facility location. Hudson can help review the application and prepare the next step.
863-665-7867 · Lakeland, Florida
Helpful details to include
- Pump and existing seal identification
- Shaft, sleeve, and seal-chamber dimensions
- Pressure, temperature, and operating speed
- Fluid composition and any solids
- Flush or seal-support arrangement
- Required certification and project documents