Type 8648VRS
Garniture en élastomère sans ressort
![](/-/media/j/johncrane_com/images/products/mechanical-seals/elastomer-bellows/8648vrs/8648vrs-66a_180-6_5.jpg?w=800&h=800&bc=ffffff&r=942d70d1-80f8-47f9-ad16-8089f8b63574&hash=D3581CE708A96E30E4B289D347C690B6)
Type 8648VRS is a standardized non-pusher elastomer mechanical seal using patented technology, designed specifically for difficult hydrocarbon oil pipeline applications. It is designed specifically with a focus on meeting the demanding requirements of pipeline pumping station duties. Available as a single, dual pressurized or dual unpressurized arrangement, without outboard seals also incorporating the same non-pusher technology, the seal can be configured to suit both the operator and pipeline needs.
![](/-/media/j/johncrane_com/images/products/mechanical-seals/elastomer-bellows/8648vrs/8648vrs-66a_180-6_5.jpg?w=800&h=800&bc=ffffff&r=942d70d1-80f8-47f9-ad16-8089f8b63574&hash=D3581CE708A96E30E4B289D347C690B6)
×
Recommandé pour vous
Caractéristiques
- California Residents: PROPOSITION 65 WARNING
- Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang up
- Non-compressible flexible elastomer bellows avoids fretting under pump shuttling
- Robust Ear drive — primary ring incorporates optimized ear drive design for increased drive torque capability
- Balanced design – balanced construction, including anti-extrusion ring, permits use in the most demanding high-pressure pipeline duties
- Rotating mating ring design — enhances cooling and permits use at higher shaft speeds
- Premium seal face materials — permits sealing of difficult services at high operating pressures
- High-shore elastomer for lack of deformation and robust construction
- Axially compact and easy to install seal head assembly
- Static reverse pressure capability on the inboard seal of the dual pressurized configuration
- Laser face grooved mating ring for use on flashing hydrocarbons
Paramètres
- Temperature Limits
- -4°F to 400°F / -20°C to 204°C
- Speed Limits
- 5,000 fpm/25.3 m/s (Crude)
6,000fpm/31.5m/s (Non-Crude) - Pressure
- Dynamic Pressure (Single Seal): Up to 1,450 psi(g)/100 bar(g) (Crude)
Dynamic Pressure (Single Seal): Up to 1,300 psi(g)/90 bar(g) (Non-Crude)
Dynamic Pressure (Dual Seal): Up to 1,750 psi(g)/120 bar(g) (Crude)
Static Pressure: Up to 2,200 psi(g)/152 bar(g) (Crude)
Static Pressure: 2,000 psi(g)/138 bar(g) (Non-Crude)
Applications recommandées
- Pipeline Pumps