AsahiAV H-V074-E User manual

Installation,Operation and Maintenance Manual
Butterfly Valve Type 58 700mm (28”)
Serial No. H-V074-E
Contents
(1) Be sure to read
the 󲹭 following 󲹭 warranty
clauses of our
product 1
(2) General operating instructions 2
(3) General instructions for transportation,
unpacking and storage 3
(4) Name of parts 4
(5) Working pressure and temperature 5
(6) Installation procedure 6
(7) Support setting procedure 10
(8) Operating procedure 11
(9) General instructions for fluid flowing 11
(10) Inspection items 11
(11) Troubleshooting 12
(12) Handling of residual and waste materials 12
Butterfly Valve Type 5
8
(PDCPD)
700mm (28”)
User’s Manual

Installation,Operation and Maintenance Manual
Butterfly Valve Type 58 700mm (28”) 4
(4) Name of parts
Nominal size: 700mm (28”)
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No. DESCRIPTION No. DESCRIPTION No. DESCRIPTION
[1] Body [7] Stem (A) [15] Screw
[1a] Inserted Metal of Body [8] Bush [16] Key
[2] Disc [9] O-Ring (C) [17] Gear Box
[2a] Inserted Metal of Disc [10] Stem Holder (B) [18] Gasket
[3] Seat [11] Washer (A) [19] Washer (B)
[4] O-Ring (A) [12] Bolt (A) [20] Nut
[5] O-Ring (B) [13] C -Type Retaining Ring [21] Bolt (B)
[6] Stem (B) [14] Stem Holder (A) [22] Cap
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Installation,Operation and Maintenance Manual
Butterfly Valve Type 58 700mm (28”) 5
(5) Working pressure and temperature
Nominal size: 700mm (28”)

Installation,Operation and Maintenance Manual
Butterfly Valve Type 58 700mm (28”) 7
Fig.2
In case of an abutting thick walled flange and pipe, shave the flange or the pipe inner diameter in order to avoid contact of
pipe and disc. If the inside diameter of the connecting pipe is larger than dimension D below, shaving is not necessary.
1) Set the short pipes.
Set the short pipes with suitable stands so that the center of the
valve in the upright position aligns with that of the short pipe.
Using a cloth, wipe foreign matter away from the flange surfaces
of the short pipes.
2) Stand the valve upright.
Wind the nylon sling around the head part of the body and gradually raise it up. After standing the valve upright, wipe
foreign matter away from the seat with a cloth.
- Support the valve up by looping a belt around the
gearbox like Fig 2. The eyebolt in the gearbox is
designed to support the weight of gearbox, so avoid
lifting up the whole valve with the eyebolt. Use it just
as a support to stand the valve upright.
Nominal Size
mm (inch)
Diameter D
mm (inch)
700 (28”) 661 (26.02”)
Fig.1
W
arning
Nylon sling

Installation,Operation and Maintenance Manual
Butterfly Valve Type 58 700mm (28”) 8
3) Lower the valve gradually between the short pipes onto the spacer.
Lower the valve carefully without damaging the flange surfaces
of short pipes
The required face to face dimension of each valve size is shown
below.
Make sure that the valve is slightly closed.
Nominal Size
mm (inch)
Face-to-face Dimension
mm (inch)
700 (28”) 169 (6.65”)
4) Connect the valve loosely to one of the short pipes.
Match the bolt hole of the short pipe with that of the valve, and
put four stud bolts into the inserted metal parts (part 1a), then
tighten nuts lightly by hand.
5) Set the second short pipe with the valve.
Using the nylon sling, loop the short pipe and tighten nuts using
the same procedure as step 4).
6) Put the bolts through the full bolt holes and plumb in.
Move the pipe gradually to match holes one another, and set nuts.
*Tighten the bolt-nuts of the valve and the flange in the full bolt
holes at first, and then tighten the bolt-nuts on the inserted metal
parts.
Fig.5
Fig.6
Fig.4
Fig.3

Installation,Operation and Maintenance Manual
Butterfly Valve Type 58 700mm (28”) 9
Fig.7
7) Tighten up the nuts according the tightening torque values listed
below
Tighten the nuts in a diagonal manner.
All penetrated bolts should be tightened first, and the inserted
metal parts should be tightened after.
Nom. Size
mm (inch)
Bolt tightening torque
N󳠂m (kgf󳠂cm)
700 (28”) 130 (1,330)
8) Using the nylon sling, lift up around the flange sides of both short pipes to set in the required position.
Hook a wire through the eyebolt in order to stabilize the valve.
JISStandard(10K)
Unit: mm (inch)
Nominal Size Bolt A Bolt B Quantity
mm (inch) d L S d1 L1 Bolt A Bolt B Nut Washer
700 (28”) M30 320 (12.60”) 66 (2.60”) M30 105 (4.33”) 20 8 48 48
Notes ; The above figures are bolt size in the case of using the JIS B 2220 "Steel pipe flanges" nominal pressure 10K.
Bolt
A
Bolt B

Installation,Operation and Maintenance Manual
Butterfly Valve Type 58 700mm (28”) 12
(11) Troubleshooting
Problem Cause Treatment
The valve does not operate
smoothly.
The protrusion of the seat. The uneven or
excessive tightening of the bolt. Loosen the bolt and adjust.
Fluid is not stopped in the full
closed position.
The stopper is not adjusted properly. Adjuster the stopper.
The seat is damaged or worn. Replace the seat.
Foreign matter is in the valve. Disassemble the valve and clean.
The disc is damaged or worn. Replace the disc.
The connecting bolts are too much tightened
or tightened unevenly. Reset the valve.
Fluid leaks to the outside. The seat is damaged or worn. Replace the seat.
The handle does not work
smoothly.
Foreign matter is adhered. Reset the valve.
The gearbox is damaged. Replace the gearbox.
The connecting bolts are too much tightened. Reset the valve.
The valve does not operate.
The gearbox is damaged. Repair or replace.
The stem is damaged. Replace the stem.
(12) Handling of residual and waste materials
- Make sure to consult a waste treatment dealer for recommendations on the proper disposal of plastic valves.
(Poisonous gas is generated when the valve is burned improperly.)
Warning

Installation,Operation and Maintenance Manual
PDCPD Butterfly Valves 700-1200mm (28”-48”)
Butterfly Valve Type 58
700mm (28”)
Distributor
http://www.asahi-yukizai.co.jp/en/
Information in this manual is subject to change without notice. 2016.8