482310 Housing Gasket 1-1/2 Rotary Union: International Buyer's Guide
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The 482310 housing gasket is a replacement seal for 1-1/2 in rotary unions, used to stop fluid weeping between the housing and rotating shaft in pumps, process lines and heat-transfer systems. It is a low-cost part that protects expensive bearings and keeps media contained, so correct selection matters more than price.
What is a 482310 housing gasket?
A 482310 housing gasket is a formed elastomeric seal that sits in the housing of a 1-1/2 in rotary union, sealing the joint between the stationary housing and the rotating shaft. It is a wear item, replaced during planned maintenance to prevent leaks, contamination and unplanned downtime.
Rotary unions are common on pumps and fluid-handling equipment from GOULDS WATER TECHNOLOGY, Dayton, AMERICAN STAINLESS PUMPS, FLINT & WALLING and STA-RITE, and the gasket is often the first component to fail when media or temperature is out of specification.
According to the Fluid Sealing Association's Rotary Union Technical Manual (2021): "Gasket selection must account for the operating temperature, the chemical compatibility of the sealed media, and the pressure rating of the union; incorrect selection is the leading cause of premature seal failure."
How does a 1-1/2 in rotary union housing gasket work?
The gasket compresses between the housing face and the shaft collar, creating a static seal that flexes as the union rotates. It absorbs minor misalignment and vibration while keeping the media inside the housing. When the elastomer hardens, swells or cracks, the seal fails and fluid escapes.
Spec table: 482310 housing gasket key attributes
| Attribute | Typical value / option | Notes |
|---|---|---|
| Nominal size | 1-1/2 in (DN40) | Matches 1-1/2 in rotary union housing |
| Part number | 482310 | Confirm against union model |
| Material options | NBR, EPDM, FKM (Viton), PTFE | Select by media and temperature |
| Pressure rating | Up to 10 bar (150 psi) | Verify against union rating |
| Temperature range | -20 °C to +200 °C (material dependent) | FKM for high temperature |
| Media compatibility | Water, glycol, oils, mild chemicals | Check chemical compatibility chart |
| Supply voltage context | 50 Hz / 60 Hz pump variants | Confirm motor frequency for export |
Which material should you choose?
NBR suits water and glycol up to about 100 °C; EPDM handles hot water and steam; FKM (Viton) resists oils, fuels and higher temperatures; PTFE is used for aggressive chemicals. Always cross-check the gasket material against the media and the union's pressure rating before ordering.
Types and applications in International markets
Rotary unions and their housing gaskets appear in HVAC chilled-water loops, process cooling, irrigation boosters, food and beverage lines, and marine and offshore fluid systems. Export buyers should confirm the union standard (metric DN40 vs imperial 1-1/2 in) and the pump's 50 Hz or 60 Hz rating, because a gasket that fits a 60 Hz US-built pump may not match a 50 Hz European or Asian variant.
Selection criteria
- Confirm the union model and size — 1-1/2 in (DN40) housing, part 482310.
- Match the elastomer to the media — NBR, EPDM, FKM or PTFE.
- Check pressure and temperature — stay within the union's rated limits (typically 10 bar / 150 psi).
- Verify frequency and voltage — 50 Hz or 60 Hz pump variants for International supply.
- Plan spares — gaskets are wear items; stock a maintenance kit.
Product comparison: pumps and replacement housing parts from 3G Electric
| Product | Type | Key spec | Best for |
|---|---|---|---|
| Dayton 1-1/2 HP Straight Centrifugal Pump | Centrifugal pump | 1-1/2 HP, 115/230 V AC, 67 ft max head, 1-1/2 in intake | HVAC and process circulation |
| Dayton 1 HP Stainless Steel Centrifugal Pump | Centrifugal pump | 1 HP, 230/460 V AC, 50 ft max head, stainless steel | Clean, non-abrasive fluids |
| Dayton 1 HP Straight Centrifugal Pump | Centrifugal pump | 1 HP, 115/230 V AC, 100 ft max head | Higher-head transfer |
| Dayton 1 HP Centrifugal Pump | Centrifugal pump | 1 HP, 230/460 V AC, 50 ft max head | Irrigation and cooling |
| Dayton Mounting Face Gasket | Replacement gasket | Housing interface seal | Gearboxes, pumps, clutches |
Step up to a higher-head or stainless-steel pump when your process demands more pressure or corrosion resistance; stay with the standard centrifugal models for routine circulation. Pair any pump with the correct housing gasket to protect the investment.
Why source from 3G Electric?
3G Electric stocks 82+ products across pumps, replacement housing parts and gaskets, backed by 35+ years of technical experience. We supply International buyers with export documentation, incoterms-neutral shipping and cross-market voltage and frequency variants. Our team helps you confirm the right gasket, pump and spare kit before you order.
Frequently asked questions
How do I know if the 482310 gasket fits my rotary union? Confirm the union is a 1-1/2 in (DN40) model and cross-check the part number against the union's manual. If unsure, send us the union model and media details and we will verify fitment before shipping.
What material is best for high-temperature service? FKM (Viton) is the usual choice for temperatures up to about 200 °C and for oils and fuels. EPDM suits hot water and steam, while NBR is fine for water and glycol up to about 100 °C.
Can I order the 482310 gasket for delivery to International? Yes. 3G Electric ships worldwide with export documentation and incoterms-neutral supply. Lead times depend on stock and destination; request a quote for current availability.
Do 50 Hz and 60 Hz pumps use the same gasket? The gasket itself is frequency-independent, but the pump and union model may differ between 50 Hz and 60 Hz builds. Always confirm the union model, not just the frequency, before ordering.
How often should the housing gasket be replaced? Replace it at every planned seal service or when you see weeping, hardening or swelling. In aggressive media, inspect more frequently and keep a spare kit on hand.
Key takeaways
- The 482310 gasket seals 1-1/2 in (DN40) rotary union housings.
- Match elastomer to media, pressure (up to 10 bar / 150 psi) and temperature.
- Confirm union model and 50 Hz / 60 Hz pump variant for International supply.
- 3G Electric stocks 82+ related products with export support and technical help.
Contact 3G Electric for quotes, sizing assistance and technical support on the 482310 housing gasket and related pumps and replacement parts.
