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Serial No.: H-V031-E-09
Diaphragm valve Type 15
125mm, 150mm
Manual Type
Userʼs Manual
Thank you for choosing our product.
This Userʼs manual contains important information for safe use of our
product, so please be sure to read it before handling the product.
After reading this manual, please be sure to keep it in a place where the
user can see it at any time.
[User's Manual] Diaphragm valve Type 15 125mm, 150mm
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Table of Contents
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Summary of Contents for AsahiAV 15
- Page 1 After reading this manual, please be sure to keep it in a place where the user can see it at any time. [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 1 -...
- Page 2 In the handling of the product, it is prohibited to do it in "Do not do it". Prohibition In the handling of the product, it is forced by "contents to be carried out without fail". Forcing [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 2 -...
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Page 3: Table Of Contents
Daily inspection ................................19 Periodic inspection ................................20 11. Cause of malfunction and remedy ·················································································· 21 12. Disposal method of residual materials and waste materials ······································· 22 Inquiries ···································································································································· 23 [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 3 -... -
Page 4: Our Product Warranty Coverage
▶ Please observe the product specifications and precautions when using our products. We shall not assume any responsibility for any damage to the customer caused by the customer's negligence. However, this does not apply to damage caused by a defect in our product. [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 4 -... -
Page 5: Safety Instructions
Be very careful when storing and handling it.) The valve can be damaged, or leak. Forcing ▶ After unpacking, make sure that the product is correct and that it meets the specifications. [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 5 -... -
Page 6: Product Handling
After checking, tighten the bolts and nuts diagonally to the values listed in the bonnet tightening torque table. [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 6 -... -
Page 7: Name Of Each Part
Body liner [4a] Cushion cover [15] [27] Rib liner Compressor [17] Valve seat [28] U-bolt and nut Compressor pin [18] Stopper [29] Disc spring washer Stem [19] Spring Washer [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 7 -... - Page 8 Serial No.: H-V031-E-09 With limit switch (optional) Limit switch [36] [38] Nut (A) Bracket (A) Limit switch retainer [37] [40] [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 8 -...
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Page 9: Product Specifications
Serial No.: H-V031-E-09 4. Product Specifications Model number table [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 9 -... -
Page 10: Relationship Between Maximum Allowable Pressure And Temperature
Serial No.: H-V031-E-09 Relationship between maximum allowable pressure and temperature [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 10 -... -
Page 11: Limit Switch Specifications
Serial No.: H-V031-E-09 Limit switch specifications Protection Size (mm) Model grade 125, 150 1LS1-J IP67 Limit switch rating Internal circuit Resistance Induction load Rated voltage load (A) 125VAC 250VAC 115VDC 230VDC [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 11 -... -
Page 12: Piping Method
▶ Be sure to use the sealing gaskets (AV gasket), bolts/nuts and washers to tighten them with the specified tightening torques. (The tightening torque will change if the gasket is not a AV gasket.) [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 12 -... - Page 13 ▶ Tighten the bolts and nuts of the connection flange diagonally to the specified torque value. (risk of leakage or damage) Flange tightening torque units SIZE (mm) Torque value 40.0 40.0 [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 13 -...
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Page 14: Limit Switch Wiring Method
* Tighten the screws securely. 7) Tighten the three screws holding the limit switch cover with a Phillips screwdriver to attach the cover. 8) Tighten the cable with the connector. [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 14 -... -
Page 15: Operation Method
At full open position: When the blue line at the top of the gauge cover matches the red line of the stopper. Full shut Full open 全開の状態 全閉の状態 [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 15 -... -
Page 16: How To Disassemble/Assemble Parts For Replacement
8) Tighten the bolts and nuts [24] between the body [1] and bonnet [2] diagonally to the specified torque value with a torque wrench. (Refer to the table below.) Bonnet tightening torque value Units; N-m Size 125mm, 150mm Diaphragm Rubber 45.0 PTFE 45.0 9) Adjust the stopper. [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 16 -... -
Page 17: How To Adjust The Stopper
[20] with the specified torque while securing it with the wrench. (Refer to the table below.) 7) Install gauge cover [21]. Set nut tightening torque value Units: N-m SIZE (mm) 125, 150 Torque value [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 17 -... -
Page 18: Inspection Item
▶ When removing the valve from the piping when replacing the valve or parts, completely remove the fluid from the piping before starting work. ▶ If any trouble is found, take the appropriate action referring to "11. Cause of malfunction and remedy". [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 18 -... -
Page 19: Daily Inspection
Remove the valve from the pipe and replace noise noise the valve. (hearing) (Ref: 8. How to disassemble/assemble parts for replacement) Piping around the valve Reconfirm the conditions of use (Ref: 2. Safety Instructions) [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 19 -... -
Page 20: Periodic Inspection
Or rust product the valve. (visual inspection) Product damage Appearance of the Remove the valve from the pipe and replace scratches, product the valve. cracks, or deformation [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 20 -... -
Page 21: Cause Of Malfunction And Remedy
The part is damaged. Remove the valve from the piping, replace the relevant part, or replace the valve. Adjustment stopper is running Adjust the stopper (Ref: 9. How to adjust the stopper) [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 21 -... -
Page 22: Disposal Method Of Residual Materials And Waste Materials
Serious injury can result Forcing ▶ When disposing of the waste, please dispose of it according to the guidelines of the local authorities. (When burnt, toxic gas is generated) [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 22 -... -
Page 23: Inquiries
Contact the nearest distributor, our sales office, or our web website for inquiries about this product. [Userʼs Manual] Diaphragm valve type 15 (Manual type) https://www.asahi-yukizai.co.jp/en Please note that the content of this manual is subject to change without notice. March 2024 [User’s Manual] Diaphragm valve Type 15 125mm, 150mm - 23 -...
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