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

Reverse Balanced Multi Spring Seals
Type DB-EB (Reverse Balanced Seals)
DB-EB

A
B
C
D
A
B
C
D
Inch
mm.
mm.
4.125
104.78
133.2
42.0
8.5
70.0
  
42.0
6.5
4.25
107.95
136.8
75.0
104.0
4.375
111.13
140.0
80.0
108.0
4.5
114.30
143.2
85.0
  
8.5

Applications:
  • General chemical applications, oil refining and petrochemical, Pharmaceutical     industries.
  • Suitable for use with abrasive clear and corrosive fluids and for cryogenic and high     temperature applications. Most recommended for Vacuum applications.
  • 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 + 500c°/-60 F° to 930 F° depending on the material used.

  • Pressure: Up to 52 bar g/750 psig.

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

    		•
    Versatile Constructions/Options
    Wedge sealing member available in PTFE and exfoliated Graphite material. Creates positive seal for use in extreme temperature/chemical.

    Type DB-EBV
    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.

    Reverse Balanced Designs
    Reverse hydraulic balancing permits use in high vacuum & positive pressure.

    Even Face Pressure
    The multi-spring designs ensure even face pressure for minimal face wear and compensation for some shaft misalignment.

    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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