Table of Contents
Advertisement
Quick Links
Pilot-operated Solenoid Valve
Thank you very much for choosing the Yoshitake's product. To ensure the correct and safe use of the product,
please read this manual before use. This manual shall be kept with care for future references.
The symbols used in this manual have the following meanings.
Warning
Caution
MODEL DP-100 series
PRODUCT MANUAL
This symbol indicates a potentially hazardous situation that, if not avoided, could
result in death or serious injury.
This symbol indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury or may result in only property damage.
Table of Contents
1
1
2
4
6
6
9
9
11
12
13
13
13
14
15
15
17
19
■EPDT-247i■
Advertisement
Table of Contents
Related Manuals for Yoshitake DP-100 Series
Summary of Contents for Yoshitake DP-100 Series
-
Page 1: Table Of Contents
Pilot-operated Solenoid Valve PRODUCT MANUAL Thank you very much for choosing the Yoshitake’s product. To ensure the correct and safe use of the product, please read this manual before use. This manual shall be kept with care for future references. -
Page 2: Usage Of The Product
1. Usage of the Product The DP-100 series, solenoid valves of pilot-operated type, are used for automatic on-off control of a fluid flow in combination with remote operated equipments or various control switches. 2. Specifications Normally closed DP-100 and DP-100-D... -
Page 3: Dimensions And Weights
Performance and specifications of AC coil (DP-100, DP-100F, DP-100-C and DP-100F-C) AC 100 / 200 V selective type AC 110 / 220 V selective type Rated voltage 50 / 60 Hz common Nominal size 10-25A 32-65A 10-25A 32-65A Rated current 0.34 / 0.17 A 0.46 / 0.23 A 0.32 / 0.16 A... - Page 4 [mm] DP-100 DP-100-D DP-100-C Nominal Weight Weight Weight size (kg) (kg) (kg) Rc 3/8 14.5 Rc 1/2 14.5 Rc 3/4 17.5 Rc 1 21.0 Rc 1 1/4 26.0 Rc 1 1/2 29.5 Rc 2 36.5 ■ Connection: JIS 10K FF flanged DP-100F DP-100F-D DP-100F-C...
-
Page 5: Operation
4. Operation ■ Normally closed type (DP-100, DP-100F, DP-100-D and DP-100F-D) （1）Opening operation (Power ON) When the power is turned ON, the coil [1] is excited and pulls up the plunger [2], to open the pilot valve [4]. Next, the pressure at the upper part of the valve [7] drops since it flows to the outlet through the pilot port [5]. - Page 6 Normally open type (DP-100-C and DP-100F-C) （1）Opening operation (Power OFF) When the power is turned OFF, the coil [1] excitation is canceled and the pilot valve [4] and plunger [2] are lifted up by force of the lift spring [3], to open the pilot valve [4]. The pressure at the upper part of the valve [7] drops due to the outgoing pressure toward the outlet through the pilot port [5].
-
Page 7: Nominal Size Selection
5. Nominal Size Selection 5.1 Nominal size selection chart For steam [How to use the chart] When selecting the nominal size of a solenoid valve whose inlet pressure (P ), outlet pressure (P ) and steam (saturated steam) flow rate (W) are 0.5 MPa, 0.3 MPa and 800 kg/h, respectively, first find intersection point (A) of P = 0.5 MPa and P = 0.3 MPa. - Page 8 For air [How to use the chart] When selecting the nominal size of a solenoid valve whose inlet pressure (P ), outlet pressure (P ) and air (20˚C)flow rate (Q) are 0.5 MPa, 0.3 MPa and 800 m /h (standard condition), respectively, first find intersection point (A) of P = 0.5 MPa and P = 0.3 MPa.
- Page 9 For water [How to use the chart] When selecting the nominal size of a solenoid valve whose inlet pressure (P ), outlet pressure (P ) and flow rate (V) are 0.5 MPa, 0.3 MPa and 300 L/min, respectively, first find intersection point (A) of the differential pressure before and after the valve [∆P = 0.5-0.3 = 0.2 MPa] and V = 300 L/min.
-
Page 10: Nominal Size Selection
5.2 Nominal size selection Cv value calculation formula <Steam> > When ∆ ≤ Cv = When <Air> > When ∆ 2940 ≤ When 2550 <Liquid> ∆ Cv: Cv value of each nominal size ∆P: P – P [MPa] W: Max. steam flow rate [kg/h] K: 1 + 0.0013 ×... - Page 11 Caution When installing the product with the coil set sideways, make sure that the differential pressure (the min. differential pressure to operate the valve) between the inlet and outlet is 0.03 MPa or more (see Table 1 on Page 1). * Failure to follow this notice may result in an abnormal operation.
-
Page 12: Piping Example
16. If case of a possible frozen line, take proper measures to remove water inside the piping or equip the product with insulating materials. * Freezing may damage the product. However, do not insulate the coil. 17. When installing the product in the piping, do not grip and turn it with a tool. * Failure to follow this notice may damage the coil. -
Page 13: Wire Method
6.2 Wiring method 1. Wiring method differs between the voltages, AC 100 / 110 V and 200 / 220 V. Bind the lead wires of the coil according to the instruction on the label attached to the coil. 2. In order to prevent disconnection or insulation failure, avoid unnecessarily pulling the lead wires or subjecting them to excessive load while wiring or use. -
Page 14: Operating Procedure
7. Operating Procedure Warning Do not touch the coil with bare hands while it is energized. * Failure to follow this notice may result in burns. Do not touch the product with bare hands when the product is used for hot fluid. * Failure to follow this notice may result in burns. -
Page 15: Daily And Periodic Inspections
* Failure to follow this notice may prevent the product from functioning properly. 3. When repairing, do not use the parts other than the dedicated parts manufactured by Yoshitake. Do not modify the product. -
Page 16: Periodic Replacement Of Parts
8.2 Periodic replacement of parts Replace the following parts when the time below comes in order to maintain the optimal performance of the product. Part replacement Part Time for replacement Piston ring* Inner ring* Per the earlier of 500,000 actuations or 2 years Valve* Plunger* Caution... - Page 17 Trouble Cause Remedy 1. Hexagon nut clamping the coil is 1. Retighten the nut with the specified Abnormal sound is loosened. torque 15N・m. heard. 2. Foreign substances exist on the 2. Disassemble the product and remove internal surface of the pipe or at foreign substances.
-
Page 18: Disassembly
8.4 Disassembly (See “9. Exploded Drawing.”) 1. Loosen the hexagon nut (nominal size: 19 mm) on the top of the coil and remove the coil. Pay attention not to lose the small parts such as washers and O-ring. 2. Loosen the hexagon bolts by 2 to 3 mm and check that no residual pressure is detected. Nominal size of hexagon bolt Nominal size 10A-20A... - Page 19 Nominal Lower ring is Both rings are placed size placed upside down. upside down. 10-25A 32-65A Two slit parts shall not be on the same side. (2) Tightening the hexagon bolts Fasten the cover complete set to the body with hexagon bolts, using the torque specified below. Be sure to evenly tighten each hexagon bolt.
-
Page 20: Exploded Drawing
9. Exploded Drawing DP-100, DP-100-D (Flanged type is available as DP-100F and DP-100F-D.) The parts name shown in the rectangle boxes are available as consumable supply. * Apply lubricant agent (Recommendation: SOLVEST No.110 paste, STT Inc.) to the threaded area. ■EPDT-247i■... - Page 21 DP-100-C (Flanged type is available as DP-100F-C.) The parts name shown in the rectangle boxes are available as consumable supply. * Apply lubricant agent (Recommendation: SOLVEST No.110 paste, STT Inc.) to the threaded area. ■EPDT-247i■...
-
Page 22: Warranty Information
Fire, flood, earthquake, thunder and other natural disasters. Consumable parts such as O-ring, gasket, diaphragm and etc. Yoshitake is not liable for any damage or loss caused by malfunction or defect of the product. INTERNATIONAL DEPT. 955-5, Miyamae, Irukadeshinden, Komaki, Aichi, 485-0084, Japan...