CKD SNP Series Instruction Manual
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CKD SNP Series Instruction Manual

With spool position detector 3-port, solenoid valve
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ＩＮＳＴＲＵＣＴＩＯＮ ＭＡＮＵＡＬ
ＩＮＳＴＲＵＣＴＩＯＮ
ＩＮＳＴＲＵＣＴＩＯＮ
ＩＮＳＴＲＵＣＴＩＯＮ
W W W W ITH SPOOL POSITION DETECTOR
ITH SPOOL POSITION DETECTOR
ITH SPOOL POSITION DETECTOR
ITH SPOOL POSITION DETECTOR
3 3 3 3 - - - - PORT, SOLENOID
S S S S NP
NP Series
NP
NP
Please
Please read
Please
Please
before
before using
before
before
section describing
section
section
section
Retain
Retain this
Retain
Retain
for
for further
for
for
further consultation
further
further
PORT, SOLENOID
PORT, SOLENOID VALVE
PORT, SOLENOID
Series
Series
Series
read this
this instruction
instruction manual
read
read
this
this
instruction
instruction
using this
this product,
product, particularly
using
using
this
this
product,
product,
describing safety
safety． ． ． ．
describing
describing
safety
safety
this
this
this instruction
instruction
instruction
instruction manual
consultation whenever
consultation
consultation
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ＳＭ－
ＳＭ－
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ＭＡＮＵＡＬ
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VALVE
VALVE
VALVE
manual carefully
carefully
manual
manual
carefully
carefully
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particularly
particularly
manual with
manual
manual
with the
with
with
the product
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whenever
whenever necessary
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necessary． ． ． ．
necessary
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  • Page 1 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７６６ ５０７６６ ５０７６６ ５０７６６－Ａ －Ａ －Ａ －Ａ ＩＮＳＴＲＵＣＴＩＯＮ ＩＮＳＴＲＵＣＴＩＯＮ ＭＡＮＵＡＬ ＭＡＮＵＡＬ ＩＮＳＴＲＵＣＴＩＯＮ ＩＮＳＴＲＵＣＴＩＯＮ ＭＡＮＵＡＬ ＭＡＮＵＡＬ W W W W ITH SPOOL POSITION DETECTOR ITH SPOOL POSITION DETECTOR ITH SPOOL POSITION DETECTOR ITH SPOOL POSITION DETECTOR 3 3 3 3 - - - - PORT, SOLENOID PORT, SOLENOID PORT, SOLENOID PORT, SOLENOID VALVE...
  • Page 2 Consult with CKD for details when using the product beyond the unique specification range, outdoors, or in the following conditions or environment: Additionally, the product must not be modified or machined. ① Use for special applications requiring safety including nuclear energy, railroad, aviation,...
  • Page 3 Guarantee coverage Guarantee coverage If any falure for which CKD CORPORATION is recognized to be responsible occurs within the above warranty period, a substitute or necessary replacement parts shall be provided free of charge, or the product shall be repaired free of chargeat the plant of CKD CORPORATION.

  • Page 4: Table Of Contents

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 【 【 【 【 Contents Contents 】 】 】 】 Contents Contents 1. 1. 1. 1. Unpacking Unpacking Unpacking Unpacking …………………… 2. 2. 2. 2. Installation Installation Installation Installation Conditions for installation ……………………...

  • Page 5: Conditions For Installation

    (3) When storing the product, attach a sealing plug to prevent the intrusion of foreign matter to the valve. Remove the sealing plug when piping the valve. 2. Installation Contact CKD if the product is to be used beyond WARNING WARNING...

  • Page 6: Installation Method

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 2.2 Installation 2.2.1 Installation a) Always thoroughly read the Instruction Manual before installing this product. CAUTION CAUTION CAUTION CAUTION b) Always hold the body when handling or installing the product. c) After installing, check for leak from the pipe and make sure that the product is correctly installed.

  • Page 7: Piping Method

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 2.3 Piping method a) Fix the product when tightening or reinstalling the piping. CAUTION CAUTION CAUTION CAUTION When piping to the body side, fix the body. b) Fix and support the pipes so that the weight and vibration of the pipes are not directly applied on the valves.
  • Page 8 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ (6) Torques required for tightening pipes ・The torques required for tightening pipes are shown in Table 2-1 for reference. Table 2-1. Recommended values of the torques for tightening pipes Nominal size of pipe Torque for tightening pipe Rc 3/8 22 - 24 [ N ・...

  • Page 9: Wiring Method

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 2.4 Wiring method (1) Continuous power supply ・When the solenoid valve is installed on a control panel or energized for an extended period, it will be heated to a temperature. In this case, a provision is required to discharge heat, i.e. ventilation.
  • Page 10 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 2.4.1 Electric connection of DIN terminal box This subsection applies to the ones with DIN terminal box (optional coil code “2G” or “2H” “2J” or “2K“. ) Take care not to connect the terminal box in a wrong manner. CAUTION CAUTION CAUTION...
  • Page 11 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ ● DIN terminal box (Pg 9) ● DIN terminal box with lamp (Pg 9) Cover with case and tighten with set screw Set screw Gasket ・ the orientation of the Case Washer cable lead out port can be...
  • Page 12 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 2.4.2 Electric connection of Limit switch This subsection applies to the ones with Limit switch (optional limit switch code “L” or “M”. ) (1) When connect with insulation tubes and terminals, connect the terminals as shown in the following figure and wire without overriding to the case and the cover.
  • Page 13 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ (3) If a connecter is to be attached to the conduit portion, use a connector that has thread length not more than 9 mm to prevent interference with the internal switch. Recommended connector ：...

  • Page 14: Appearance Check

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 3. Pre-operation （post-installation） check 3.1 Appearance check Shut off the fluid flow. WARNING WARNING WARNING WARNING Exhaust the fluid remaining in the valve. Turn off the power. (1) Push the valve with finger to check that the valve has been fixed to the pipe or mounting hole.

  • Page 15: Precautions At Use

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 4. Instructions for proper use 4.1 Precautions at use a) Do not use this product for an emergency shut off valve. ・ The valves listed in this catalog are not designed as WARNING WARNING WARNING...
  • Page 16 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ Solenoid valve 1 Solenoid valve 2 Limit Switch 1 Limit Switch 2 Pressure Ｔ3 Ｔ1 Ｔ2 Ｔ4 Ｔ1・・・The moment the solenoid valve is turned ON until the moment Limit Switch 2 emits a “Valve Open” signal Ｔ2・・・The moment the solenoid valve is turned ON until the moment pressure rises at the secondary side Ｔ3・・・...

  • Page 17: Disassembly And Assembly Procedure Of The Solenoid Valve For Pilot Operation

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 4．2 Procedures for disassembling and assembling solenoid actuator section 4.2.1 Disassembly procedure a) Close the main valve. CAUTION CAUTION CAUTION CAUTION b) Exhaust the fluid remaining in the valve. Turn off the power. Remove wires from the solenoid valve.

  • Page 18: Maintenance And Inspection

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 4.2.2 Assembly procedure (1) Install the gasket to the body assembly with care not to install it in the wrong direction. (2) Put the solenoid valve on the stauffing. Take care not to orient the manual unit in a wrong way.

  • Page 19: Troubleshooting

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 6．Troubleshooting If the valve does not function as specified, check it according to Table 6-1. Table 6-1 Symptom Cause Action The valve does It is not energized. Check the wiring and fuse and turn not move.

  • Page 20: Specifications For The Product No

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 7．Specifications for the product 7．1 Meaning of the model No. ＳＮＰ ※ ※ ※ ※ ※ ※ ※ ※ 3 port solenoid valve No. of station Individual (Terminal box facing right) 1Ｌ...

  • Page 21: Specifications For The Product

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ 7．2Specifications for the product Specifications Specifications Specifications Specifications Descriptions Descriptions Descriptions Descriptions Rc3/8 Rc1/2 Rc3/4 Port size Port size Port size Port size Normally closed (NC type) Actuation Actuation Actuation Actuation Port Ｐ...

  • Page 22: Internal Construction Drawings Internal Construction Drawings

    ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ ８．Internal construction drawings ８．１ Connection port size Part name Solenoid valve Limit Switch Stuffing Spring Indicator Packing Body Valve stem Valve seat Piston MY packing －21－...
  • Page 23 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ ８．２ Connection port size : 20A to 25A Part name Solenoid valve Limit Switch Stuffing Spring Indicator Packing Body Valve stem Valve seat Piston MY packing －22－...
  • Page 24 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ Module connection ● This product can modularize up to two stations. Moreover, this product can easily unitize pneumatic equipments (C series). Parts shown below are needed to form units. ＜For 10A and 15A＞ Part name Model number Joiner set...
  • Page 25 ＳＭ－ ＳＭ－ ＳＭ－ ＳＭ－５０７７６ ５０７７６ ５０７７６－Ａ ５０７７６ －Ａ －Ａ －Ａ ●If the product is to be unitized with a filter or regulator, insert a distributor (D series) between the SNP and the filter or regulator (W series). Port size Distributor D401-00—※-W 10A,15A D300-※-W...

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