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ASAHI AV VALVES
Diaphragm Valves Type 15
User ' s Manual
Diaphragm Valves Type 15
Installation,Operation and Maintenance Manual
Serial No.
(1) General operating instructions
(2) General instructions for transportation,
unpacking and storage
(3) Name of parts
(4) Comparison between working
temperature and pressure
(5) Installation procedure
(6) Operating procedure
(7) Adjustment procedure for stopper
(8) Diaphragm replacement procedure
(9)
Inspection items
(10) Troubleshooting
(11) Handling of residual and
waste materials
(12) Inquiries
ASAHI
H – V031 E – 3
Contents
AV VALVES
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Summary of Contents for ASAHI 15
- Page 1 ASAHI AV VALVES Installation,Operation and Maintenance Manual Serial No. H – V031 E – 3 Diaphragm Valves Type 15 User ’ s Manual Contents (1) General operating instructions (2) General instructions for transportation, unpacking and storage (3) Name of parts...
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Page 2: General Instructions For Transportation, Unpacking And Storage
○Operate the valve within the pressure Vs temperature range. (The valve can be damaged by operating beyond the allowable range.） ○Select a valve material that is compatible with the media, refer to “CHEMICAL RESISTANCE ON ASAHI AV VALVE”. (Some chemicals may damage incompatible valve materials.) ○Diaphragm part may become loose after long term storage or unused period, or by the change of temperature... -
Page 3: Name Of Parts
Name Plate ◯ Bolt・Nut ◯ Cushion ◯ ◯ Body liner ◯ Cushion cover ◯ Sheet ring ◯ Rib liner ◯ Compressor ◯ Stopper ◯ U-bolt・nut Stem Spring washer Conical spring washer ◯ ◯ ◯ Sleeve(A) ◯ ◯ Diaphragm Valves Type 15... - Page 4 ASAHI AV VALVES Installation,Operation and Maintenance Manual (4) Comparison between operating temperature and pressure Caution Do not operate valve beyond the range of working temperature and pressure. (The valve can be damaged.) Diaphragm Valves Type 15...
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Page 5: Installation Procedure
3) Using a torque wrench, tighten the bolts and nuts gradually to the specified torque in a diagonal manner (Refer to fig.1.) Specified torque value Unit ： N-m｛kgf-cm｝[lb-inch] Nom. Size 125mm (5”) 150mm (6”) Torque value 40.0{408} [355] 40.0{408} [355] Fig. 1 Caution Avoid excessive tightening. (The valve can be damaged.) Diaphragm Valves Type 15... -
Page 6: Operating Procedure
6) ⑥Tighten the nut ◯ to the stopper ◯ with spanner wrench. 7) ⑦Tighten the gauge cover ◯ Tightening torque of the screw Unit : N-m {kgf-cm} [lb-inch] Nom. Size 125mm (5”), 150mm(6”) Torque valve 10.0 {102} [89] Diaphragm Valves Type 15... -
Page 7: Inspection Items
Check whether fluid leaks to the outside. Check the tightness of coupled bolt nut between the body and the bonnet and that of the gauge cover (loose or not). Check whether the operation of the handle is smooth. Diaphragm Valves Type 15... - Page 8 The diaphragm has failed due to Replace. fatigue. Valve leaks from stem. The diaphragm has failed. Replace. (11) Handling of residual and waste materials Caution In discarding remaining or waste materials, be sure to ask a waste service company. Diaphragm Valves Type 15...
- Page 9 : 2-5955, Nakanose- Cho, Nobeoka –City, Miyazaki- Pref. , Japan. Tel : (81) 982-35-0880 Fax : (81) 982-35-9350 Tokyo Head Office : (Furukawachiyoda Bldg.) 15-9, Uchikanda 2- Chome, Chiyoda-Ku, Tokyo, Japan. Tel : (81) 3-3254-8177 Fax : (81) 3-3254-3474 Singapore Branch Office : 16 Raffles Quay, #40-03 Hong Leong Building, Singapore 048581.
- Page 10 ASAHI AV VALVES Installation,Operation and Maintenance Manual Diaphragm Valve Type 15 AV VALVES ASAHI Information in this manual is subject to change without notice. 2003. 4 Diaphragm Valves Type 15...
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