Hybrid Butterfly Valve

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New HT-83 3 Hybrid Butterfly Valve
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Topics Covered

• Product Highlights
• Technical Data
• Dimensions
• Exploded View
• Key Highlights
• Installing Location
• Installation Procedure
• Disassembly Procedure
• Important Notes
• Testing
• Packaging

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Product Highlights
FEATURES

• Light Weight, easy to install.
• One piece body made of U-PVC.
• Disc made of Stainless Steel.
• Disc designed to ensure low torque and low
  pressure loss.
• Suitable for piping in a limited space.
• Shaft also made of Stainless Steel for rust
  prevention.

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Technical Data
Nominal Size, mm(inch) 80mm(3")
Nominal Operating Pressure 10Kg/cm2
Connection Type Flanged End
Maximum Operating Pressure 8Kg/cm2
Maximum Operating Temperature 50oC
Material of Construction Material of Construction
Body PVC
Sleeve PVC
Shaft Stainless Steel
Handle ABS with Metal Insert
Seal EPDM
Disc Stainless Steel
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Dimensions
Dimensions (mm) Dimensions (mm) Dimensions (mm) Dimensions (mm) Dimensions (mm) Dimensions (mm) Dimensions (mm)
d D H1 H2 H L C
80 128 140.5 91 182 198.5 155.5
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Exploded View
Part No. Part Name
1 Logo Cap
2 Allen Screw
3 Handle Washer
4 Handle
5 Carriage Bolt
6 Handle Lever
7 Handle Spring
8 Sleeve
9 Locking Bush
10 Circlip
11 SS Long Shaft
12 O-Ring
13 Large Bush
14 O-Ring
15 SS Nut
16 Body
17 EPDM Seal
18 Disc
19 O-Ring
20 Large Bush
21 O-Ring
22 SS Small Shaft
23 Base Plate
24 Allen Screw
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1
13
4
2
14
3
15
7
5
16
6
17
8
19
9
20
10
18
21
22
11
23
24
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Key Highlights - Lock Plate
FEATURES

• Made of Stainless Steel.
• Lock plate is provided with throttling notches
  every 15o in balancing up to 90o or shut off
  service. The lever may be padlocked in any one of
  the notches.

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Key Highlights - Handle
FEATURES

• Handle is made of fine quality ABS with Metal
  Insert giving it proper strength preventing
  breakage during Operation.
• There is no rusting problem like in Metal
  Handles.
• Sufficient Length of Handle to provide enough
  torque for easy opening and closing.

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Key Highlights - EPDM Rubber Seal
FEATURES

1. Wide disc seating contact for good sealing
   performance.
2. Dual shaft seal bearing for stabilized sealing
   function and to increase open area for smooth
   handle movement.
3. Excellent gripping of rubber seal to avoid
   operating problems such as distortion,
   deformation and skidding caused by line pressure
   and friction with metal. Double gripping holes do
   not slip up in high pressure.
4. Gasket-less Flange sealing contact for easy valve
   mounting.

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Installing Location

• Butterfly valves should be installed if possible
  a minimum of 6 pipe diameters from other line
  elements, i.e. elbows, pumps, valves, etc.
  Sometimes this is not feasible, but it is
  important to achieve as much distance as
  possible.
• Where the butterfly valve is connected to a check
  valve or pump, keep enough space between them to
  ensure the disc does not interfere with the
  adjacent equipment.

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Installation Procedure

• Make sure the pipeline and flange faces are
  clean. Any foreign material such as metal
  filings, pipe scale,  welding slag, welding rods,
  etc. can limit disc movement or damage the disc
  or seat.
• Gaskets are not required on resilient seated
  valves because they extend to both faces of the
  valve.

Insert Butterfly valve between Flanges
Correct Installation
Incorrect Installation
Pipes aligned and spread, disc rotated
10. Result Minimal seating / unseating torque,
disc edge protected.
Pipe not spread, disc opened beyond valve body
face. Result Disc edge damaged as it contacts
the flanges.
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Installation Procedure

• Insert the valve between the flanges as shown,
  taking care not to damage the seat faces. Always
  lift the valve by the locating holes.
• Place the valve between the flanges, centre it,
  insert the bolts and hand-tighten them. Carefully
  open the disc, making sure the disc does not
  contact the inside of the adjacent pipes.

Incorrect Installation
Correct Installation
Bolts spanned, disc edge within a body, face to
face, no flange gaskets. Result No disc edge
damage, proper sealing allowed.
Disc in closed position Gasket used Results
Seat distorted and over compressed causing high
initial unseating torque problem.
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Installation Procedure
Final Aligning tightening of Flange Bolts
Incorrect Installation
correct Installation
Piping Misaligned Results Disc O.D. strikes pipe
I.D. causing disc edge damage, increased torque
and leakage, seat face O-ring seal improper
without engagement.
Piping aligned properly when bolts tightening,
disc in full open position. Result Disc clears
adjacent pipe I.D., seat face seals properly, No
excessive initial torque.
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Disassembly Procedure

• Drain fluid completely from the pipeline.
• Leave the valve slightly opened.
• Loosen the connecting bolts and nuts.
• Remove the valve from the pipeline.

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Important Notes

• Position discs at 10 open so that they are
  unseated.
• The faces of each valve should be covered to
  prevent damage to the seat face, disc edge, or
  valve interior.
• Store indoors, preferably with ambient
  temperatures between 5C and 30C.
• Open and close the valves every 3 months.
• Ship and store valves so that no heavy loads are
  applied to the bodies.

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Lab Testing

• Extensive in-house Testing Facilities are
  available to fully ensure quality at all stages.
  These include
• Elastomer Testing for tension, compression set,
  hardness, specific gravity abrasion resistance.
• Hydrostatic pressure testing for Shell Seat,
  valve operating torque test (BS-5755 / IS-13095)
• All SS-316 parts tested in-house in Salt Spray
  Testing and material composition confirmed from
  Independent Approved Laboratories.
• Manufacturing Standard BS5155/AP1609, AWWAC504
• Testing Standard BS6755 / AP1598

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Field Testing

• Operating Pressure on line - 3Kg/cm2.
• The products used on the line were Hydrocyclone,
  Ball Valve, Screen Filter, Check Valve and M-22
  Sprinklers.
• When Tested for 15 minutes on farmer's line
  located in Patiala at a pressure of 3kg/cm2,
  there was no leakage from any part of the valve.
• The Handle movement during operation was swift.
• Pressure Drop was negligible in the full opening
  position.
• When the valve was 50 open the disc didnt
  rotated because of high pressure water.

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Packaging
11.5 Inch
6 Inch
12.5 Inch
Front
Top
Open 1
Open 2
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