DOUBLE DIAPHRAGM PUMPS


AOD 30 / 1" BSP (25mm)
POLYPROPYLENE


ADVANCED PLASTIC PRODUCTS


RANGE OF PRODUCTS IN ADVANCED PLASTICS

 
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Mechanical Seals
Multispring Seals Low Profile Seals
Single Coil Spring Seals Metal Bellow Seals
Teflon Bellow Seals High Performance Seal Hardware
Reverse Balanced Multi Spring Seals Mixer, Agitator and Vessel Seals
Wave Spring Seals Fluid Control Equipment

Single Coil Spring Seals
Type DB-FUT/DB-FUV (Unbalanced)
Type DB-FBT/DB-FBV (Balanced)
DB-FUT

A
B
C
D
E
F
G
J
K
L
'P'
Inch
mm.
1.0
25.40
38.0
44.5
 44.5
4.5
41.0
11.1
 41.30
9.5
2.5
30.0
1.125
28.58
41.0
44.0
 44.45 33.0
1.25
31.75
46.0
 48.0 48.0
49.0
 47.62 36.5
1.375
34.92
49.2
 
52.2
 50.80 39.5

Applications:
  • General chemical applications, oil refining and petrochemical, Pharmaceutical     industries.
  • Suitable for use with abrasive contaminated and corrosive fluids, for slurries,     sludges and effluents with solid presence.
  • By choosing suitable component material the seals can be adapted to operate with     a wide range of liquid and operating conditions.

    		•
    Operating Limits
  • Size range: 3/8” to 8” (10mm to 200 mm)

  • Temperature: -50c° to + 500 c°/-60 F° to 930 F° depending on the material used.

  • Pressure: Type DB-FU-Up to 17 bar g/247 psig, Type DB-FB Up to 62 bar g/900                      psig.

  • Speed: Up to 6000 RPM according to seal size and working pressure.

    		•
    Versatile Constructions/Options
    Type DB-FUT (Unbalanced) / DB-FBT (Balanced)
    Wedge or “U” pack sealing member available in PTFE and exfoliated Graphite material. Creates positive seal for use in extreme temperature/chemical.

    Type DB-FUV (Unbalanced) / DB-FBV
    An “O” ring sealing member available in various rubbers. TTV “O” rings and other choices available as per the applications.
    Design features:
    Precision Lapped Sealing Faces
    Lapping process results in high precision finish with optimal flatness.

    Balanced/Unbalanced Designs
    Positive hydraulic balancing permits use in high pressure. Unbalanced design can be used for lower pressure applications, saves cost.

    Single Coil Spring
    The single coil spring designs ensure the safe pass thru of contamination or solids presence in the process liquid. On clog design which allows the usage of seal in wide range of slurries and sludge type applications.

    Compact Design
    Permits use in all types of rotating equipments such as centrifugal pumps, mixers, and agitators.

    Field Repairable
    Reduces inventory requirements. Seals can be repaired easily on site or at any Daybreak's seal repair centers, and/or converted to various seal face combinations.
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