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Precision Needle Valve Model 2420
CAUTION
This product is designed to control flows and can be used at a pressure and temperature
up to:
Max. operating pressure ： 0.6 MPa(G)
Max. operating temperature ： 80 ℃
The use of the needle valve with gases or toxic gases other than those specified on the
valve body or at a pressure exceeding the maximum allowable pressure may cause
serious injury. Such a way of use is strictly prohibited.
Foreword
Thank you for your selection of Model 2420.
Prior to using your new needle valve, please read this manual thoroughly to ensure the
valve will operate to its maximum performance.
・ The contents of the manual are subject to change without prior notice.
・ The manual has been carefully created and checked before shipment. If you notice
any deficiencies, errors or omissions, however, please inform us.
・ The warranty period of the needle valve is one year from the date of shipment from
our plant.
・ Any failures which may occur during this period and are attributable to our
workmanship will be corrected free of charge.
・ KOFLOC shall bear no responsibility whatsoever for breakage or troubles of
equipment resulting from neglect of the precautions presented in this manual or use
of the needle valve in manners not described herein.
(Greaseless needle valve)
Instruction Manual
- 1 -
FJ400062B1
Created on 2021/12/20
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Summary of Contents for Kofloc 2420
- Page 1 ・ Any failures which may occur during this period and are attributable to our workmanship will be corrected free of charge. ・ KOFLOC shall bear no responsibility whatsoever for breakage or troubles of equipment resulting from neglect of the precautions presented in this manual or use of the needle valve in manners not described herein.
- Page 2 The knob is for exclusive use of this Model 2420, and it is an insertion type. In case the knob is slightly hard when pulling out the knob, turn the needle fully open to make it easier to pull out.
- Page 3 FJ400062B1 Created on 2021/12/20 3) Model 2420 is equipped with a packing for fixing the shaft to the needle shaft. In order to maintain this shaft anti-shake function, do not forcibly rotate in the opening direction beyond the contact position when the valve is fully opened.
- Page 4 FJ400062B1 Created on 2021/12/20 3-3 Specifications 【Specificatons】 Model 2420 Adjustable range of adjusting screw About 10 turns 5 types （N1～N5） Types of needle Max. operating pressure 0.6 MPa(G) Fluid contact materials SUS304, PP FKM (Partly PTFE coating), Connecting port Rc 1/4 80℃...
- Page 5 FJ400062B1 Created on 2021/12/20 【Dimentions】 Cut out dimensions Φ15 [Needle No. Identification] Needle numbers N1 to N5 of this product can be identified in two places on the main unit. See the photo 1. The second number from the right of the lot number label attached to the product is the needle number.
- Page 6 KOFLOC specification. ② Scope of warranty If the KOFLOC product fails during the warranty period due to a cause attributable to KOFLOC, KOFLOC shall, at its option and expense, provide a replacement product or repair the failed product at the KOFLOC factory.
- Page 7 KOFLOC. Please be aware that the warranty shall not cover opportunity loss suffered by you or your customer or damage to other equipment or any other damages due to a failure of the KOFLOC product. URL： http://www.kofloc.co.jp - 7 -...
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