Product Description
Alternative to:
for BORGMANN M74-D
Features
• For plain shafts
• Dual seal
• Unbalanced
• Rotating multiple springs
• Independent of direction of rotation
• Seal concept based on the M7 range
• Variant with pumping screw available (M74F - D)
Advantages
• Efficient stock keeping due to easily interchangeable
faces
• Extended selection of materials
• Flexibility in torque transmissions
• EN 12756 (for connection dimensions d1 up to
100 mm (3.94"))
Operating range (see note on page 1)
Shaft diameter: d1 = 18 … 200 mm (0.71" … 7.87")
Pressure: p1 = 25 bar (363 PSI)
Temperature: t = -50 °C … +220 °C
(-58 °F … +428 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Axial movement:
d1 up to 100 mm: ±0.5 mm
d1 from 100 mm: ±2.0 mm
Materials
Seal face: Special cast CrMo steel (S),
Silicon carbide (Q1, Q2)
Seat G9: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B),
Silicon carbide (Q1*, Q2*)
Seat G4: Silicon carbide (Q1*, Q2*)
Seat G6: Silicon carbide (Q1*, Q2*)
Seat G13: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
* Cannot be combined with seal face in S
Recommended applications
• Process industry
• Chemical industry
• Pulp and paper industry
• Low solids content and low abrasive media
• Toxic and hazardous media
• Media with poor lubrication properties
• Adhesives
• Chemical standard pumps
NINGBO YINHZOU BETON SEAL CO.,LTD, founded in 1983, is a high-tech factory specializing in designing and manufacturing all kinds of mechanical seals and filters.
Our main products include o-ring type, rubber bellow type,flygt pump series, grund fos type and cartridge type. The seal face material and elastomers are comprehensive choice. Meanwhile, we can also supply spare parts with material silicon carbide, Tungsten carbide, Ceramic ,carbon, stainless steel and rubber.
Which can replace the similar products for John Crane, Burg man ,AES seal, Roten,Sterling,Flowseve and Vulcan.
Now, the company's seals network has spread all over the country, and the seals of our core products have increased rapidly.shch as mechanical seals,mechanical seal , In 2001, we passed ISO9001 international quality authentication
Our products are very popular abroad, exported to over 50 countries because of excellent quality, good after-sales service and more competitive price, including USA, Japan, UK, Canada, Sweden and Australia. And so on....
Over the years, we have insisted on the principle of "quality fist, service-oriented" to open up markets and make continuous innovations. Our company is committed to sealing industry to industry to provide customers a safe, clean living and working environment
We hope sincerely that clients will come to establish long-term business relations with each other on the basis of mutual benefits and development to create a bright perspective. welcome to mechanical seal in china...
Audited Supplier 
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