China Df Profile High Pressure O Ring Face Seal Duo Cone Seal Floating Seal

Description
The DF profile is a standard floating seal or O ring face seal composed of two metal parts made from 18Cr or 15CrMo or 15CrMoNi Ally cast Iron and two rubber Belleville seals.Mechanical Face Seals are a special form of mechanical seals. They are also known under other designations, such as lifetime seals, floating seals, duo cone seals, toric seals and heavy duty seals.
Types
There are two different types of Mechanical Face Seals: the most common form is Type DO, which is characterized by the use of an O-Ring as the secondary sealing element (Figure 1).
Type DF, on the other hand, has an elastomer with a diamond-shaped cross section as a secondary sealing element instead of the O-Ring (Figure 2).
Both types consist of two identical metal seal rings which seal against each other on a lapped seal face.
Advantages
Wide temperature range, depending on the material chosen
Longer lifespan
Compact design
Straightforward development of the cylindrical housing, which requires a more precise fittingMaterialsmetal friction rings100Cr6 bearing steel
15CrMoNi cast iron
Durinit cast ironBelleville sealNBR 60 - 65 Shore A
HNBR 60 - 65 Shore A
FKM 60 - 65 Shore A
VMQ 60 - 65 Shore A
Technical data

Temperature-50°C/+200°CPressure0.15 MPa in bearing steel in dynamic applications
0.30 MPa in Cast iron in dynamic applications
0.50 MPa in static applicationsSpeed2.2 m/s in bearing steel
3.0 m/s in 15CrMoNi Cast iron
10.0 m/s in Durinit Cast ironMediasOil lubrication
Grease lubrication
SAE 80 - SAE 90
SAE 20W20 - 10W40 oils
Biocompatible oils

ApplicationsConstruction machinery
Screw conveyors for abrasive materials
Harvesting machineryTypes of lubricationFor the system to operate correctly, it is necessary to lubricate the seal at the sealing gaps. We recommend using oil lubrication rather than grease lubrication.For an oil lubrication that is permanent and does not require upkeep, the oil level must be between the 2/3 of the inside diameter of the seal and the middle of the axis. We recommend using SAE 80 and SAE 90 gearbox oils for a better operation.Grease lubrication requires particular attention. It is avoided due to the hydrodynamic conditions of lubrication that cannot be met, which could lead to significant wear and therefore a premature deterioration of the seal. If grease lubrication is used, the grease must not be inserted between the friction surfaces of the seal.Limitations of useThe diagram below determines the linear speed (m/s), according to the outside diameter of the floating seal "D1" (mm) and its rotation speed (rpm).
Product List

about Morgan

Established by Guangzhou Mechanical Engineering Research Institute Co., Ltd. (51% share, hereinafter to be referred as GMERI) and Morgan Construction Co., Worcester, MA, U. S. A. (49%, hereinafter to be referred as Morgan, Worcester) in 2006, Guangzhou Morgan seals Company Ltd. Is a professional manufacturer for sealing products. Combined the rich seals research and production experience of GMERI with the advanced technology and administration of Morgan, Worcester, the joint venture is renowned for its modern production lines, persisting research & development, strict quality control, quality sales and after-sales service. Now she has gained a good name from her customer all over the world, such as Siemens Primetals, Baosteel, SMS siemag and so on.

Morgan Seals Research and Development ability is based on her parent firm who has won awards as scientific research achievements for more than 1000 projects and over 200 of them won scientific and technological progress prizes of municipal, provincial, ministerial and national levels. At the same time, it also has one National Certified Laboratory, one National Engineering Research Centers and three Industry Level Inspection Centers.