Air Filter Regulator PRODUCT MANUAL
YT-200 / 205 / 220 / 225 Series
YT-200 YT-205 YT-220 YT-225
VERSION 1.01
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 2
Contents
1. Introduction ................................................................................................................................... 3
1.1 General Information for the users ........................................................................................... 3
1.2 Manufacturer Warranty ........................................................................................................... 3
2. Product Description ...................................................................................................................... 4
2.1 General .................................................................................................................................... 4
2.2 Main Features and Functions .................................................................................................. 4
2.3 Label Description .................................................................................................................... 5
2.4 Product Code .......................................................................................................................... 6
2.5 Product Specification .............................................................................................................. 6
2.6 Operation Logic ....................................................................................................................... 7
2.7.1 YT-200 / 205 (Manual drain type) ........................................................................................... 8
2.7.2 YT-220 / 225 (Manual drain type) ........................................................................................... 9
2.8 Product Dimension ................................................................................................................ 10
2.8.1 YT-200 / 205 (Manual drain type) ..................................................................................... 10
2.8.2 YT-200 / 205 (Auto drain type) .......................................................................................... 10
2.8.3 YT-220 / 225 (Manual drain type) ..................................................................................... 11
2.8.4 YT-220 / 225 (Auto drain type) .......................................................................................... 11
2.9.1 YT-200 / 205.......................................................................................................................... 12
2.9.2 YT-220 / 225.......................................................................................................................... 12
3. Installation ................................................................................................................................... 13
3.1 Safety .................................................................................................................................... 13
3.2 Installation ............................................................................................................................. 14
3.3 How to Use ............................................................................................................................ 14
4. Maintenance ................................................................................................................................ 15
4.1 Replacement of Parts (Not applicable for YT-200, 200.) ...................................................... 15
4.2 Draining condensed water .................................................................................................... 15
4.3 Replacing Ass’y-diaphragm .................................................................................................. 15
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 3
1. Introduction
1.1 General Information for the users
Thank you for purchasing Young Tech Co., Ltd products. Each product has been fully
inspected after its production to offer you the highest quality and reliable performance.
Please read the product manual carefully prior to installing and commission the product.
➢ The manual should be provided to the end-user.
➢ The manual can be altered or revised without any prior notice. Any changes in
product’s specification, design, and/or any components may not be printed immediately
but until the following revision of the manual.
➢ The manual should not be duplicated or reproduced for any purpose without prior
approval from Young Tech Co., Ltd, Gimpo-si, South Korea.
➢ In case of any other problems that are not stated in this manual, please make immediate
contact to Young Tech co., Ltd.
1.2 Manufacturer Warranty
➢ For the safety, it is important to follow the instructions in the manual. Manufacturer will
not be responsible for any damages caused by user’s negligence.
➢ Any modifications or repairs to the product may only be performed if expressed in this
manual. Injuries and physical damages caused by customer’s modifying or repairing the
product without a prior consultation with Young Tech co., Ltd will not be compensated. If
any alterations or modifications are necessary, please contact Young Tech Co., Ltd
directly.
➢ Standard type with NBR rubber (ambient temperature range option 1) is subject to
damage by ozone. If you suspect that ozone may be present at the site or if supplied air
is likely to contain ozone, select a high temperature version (ambient temperature range
option 2) or a low temperature version (ambient temperature range option 3) with
SILICONE rubber.
➢ Manufacturer warrants the product from the date of original purchase of the product for
eighteen (18) months, except as otherwise stated.
➢ Manufacturer warranty will not cover products that have been subjected to abuse,
accidents, alterations, modifications, tampering, negligence, misuse, faulty installation,
lack of reasonable care, repair or service in any way that is not contemplated in the
documentation for the product, or if the model or serial number has been altered,
tampered with, defaced or removed; damages that occurs in shipment, due to act of
God, failure due to power surge, or cosmetic damage. Improper or incorrectly
performed maintenance will void this limited warranty.
➢ For detailed warranty information, please contact the corresponding local Young Tech
Co., Ltd office or main office in South Korea.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 4
2. Product Description
2.1 General
Air filter regulator, YT-200 / 205 / 220 / 225, receives the main supply air pressure and
supplies to the desirable level of pressure to a positioner or other pneumatically operating
devices.
2.2 Main Features and Functions
➢ Maintains desirable pressure level, regardless of fluctuation of the main supply pressure.
➢ 5 micron filter filters most particles in the main supply pressure.
➢ Relief function is available which discharges to the atmosphere, if the output pressure is
higher than setting pressure.
➢ By using aluminum or stainless steel body, it has high durability in various environments.
➢ Manual or Auto draining is available.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 5
2.3 Label Description
Fig. L-1: YT-200 Fig. L-2: YT-205
Fig. L-3: YT-220 Fig. L-4: YT-225
• MODEL : Indicates the model number and any options of the positioner.
• LOT NO. : Indicates unique lot number.
• YEAR : Indicates manufactured year.
• AMBIENT TEMP. : Indicates the allowable ambient temperature for explosion proof.
• MAX. SUPPLY : Indicates max. supply air pressure level.
• ADJUST RANGE : Indicates adjusting range of the output pressure.
• AIR CONNECTION : Indicates connection thread type.
※ Precautions
Be careful not to apply volatile solvent (hardener of instant adhesive, acetone, WD-40,
etc.) to the sticker nameplate. Printed contents may be erased.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 6
2.4 Product Code
YT -200 / 205 / 220 / 225 1 2 3 4 5
1 Adjustable range
A :
B :
0 ~ 0.42 MPa
0 ~ 0.84 MPa
2 Air Connection type
P :
N :
PT (only YT-200 / 220)
NPT
3 Gauge
0 :
1 :
2 :
NONE
0 ~ 0.4 MPa
0 ~ 1.0 MPa
5 Ambient Temperature
1 :
2 :
3 :
-20°C ~ 70°C (-4°F ~ 158°F)
-20°C ~ 120°C (-4°F ~ 248°F)
-40°C ~ 70°C (-40°F ~ 158°F)
7 Option
0 :
1 :
Manual drain
Auto drain
2.5 Product Specification
Model
YT-200
YT-220
YT-205
YT225
Max. Supply Pressure
1.7 MPa (17 bar)
Max. Out Pressure
0.42MPa (A Type), 0.84MPa (B Type)
Air Connection
PT(NPT) 1/4
PT(NPT) 1/2
NPT 1/4
NPT 1/2
Gauge Connection
PT(NPT) 1/4
PT(NPT) 1/4
NPT 1/4
NPT 1/4
Ambient
Temperature
Standard
-20°C ~ 70°C (-4°F ~ 158°F)
High
-20°C ~ 120°C (-4°F ~ 248°F)
Low
-40°C ~ 70°C (-40°F ~ 158°F)
Min. Filtering Size
5 micron
Housing Material
Aluminum Diecasting
Stainless Steel 316
Weight
0.6 Kg (1.7 lb)
0.86 Kg (1.89 lb)
1.4 Kg (3.0 lb)
2.1 Kg (4.6 lb)
Tested under ambient temperature of 20’C, absolute pressure of 760mmHg, and humidity of 65%.
Please contact Young Tech Co., Ltd for detailed testing specification.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 7
2.6 Operation Logic
When ① the adjustment bolt is turned clockwise, ④ the adjusting spring will take the force pressing
⑤ the diaphragm and ⑥ the stem will move downward and the supply pressure (IN) will go out to the
secondary output port (OUT). When the pressure on the secondary port reaches set pressure, this
pressure is transmitted to the bottom of ⑤ the diaphragm through the output pressure sensing hole,
and the set pressure is maintained by balancing the force with ④ the adjusting spring. If the pressure
on the secondary port is higher than the set pressure, the pressure delivered through the output
pressure sensing hole pushes up ⑤ the diaphragm and opens between the diaphragm and ⑥ the
stem. It is discharged to the atmosphere through ③ the spring case hole to maintain the set pressure.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 8
2.7 Parts and Assembly
2.7.1 YT-200 / 205 (Manual drain type)
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 9
2.7.2 YT-220 / 225 (Manual drain type)
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 10
2.8 Product Dimension
2.8.1 YT-200 / 205 (Manual drain type)
2.8.2 YT-200 / 205 (Auto drain type)
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 11
2.8.3 YT-220 / 225 (Manual drain type)
2.8.4 YT-220 / 225 (Auto drain type)
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 12
2.9 Pressure and Flow Characteristics
2.9.1 YT-200 / 205
2.9.2 YT-220 / 225
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 13
3. Installation
3.1 Safety
When installing a unit, please ensure to read and follow safety instructions.
➢ Be sure to have protective equipment and comply with safety regulations.
➢ After setting the pressure, secure the nut so that the adjustment bolt does not turn.
➢ Supply pressure should be used with clean air.
➢ Use within specifications specified in the manual. Exceeding the specification may
result in damage to the product or accident.
➢ If there is any impact on the product, it may cause malfunction or failure, so be careful
during handling, installation and operation.
➢ For maintenance, periodically open the drain plug at the bottom of the product to
discharge the condensate.
➢ Exhaust to the atmosphere are made through a small exhaust hole next to the spring
case.
➢ Install the product with the adjustment bolt facing up. Otherwise, the life cycle of the
product may be shortened or moisture and foreign substance may enter into the vent
hole, leading to damaging internal parts.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 14
3.2 Installation
➢ The air filter regulator can be installed with or without a bracket depending on the field
conditions. The air filter regulator is used to supply constant air pressure to various devices
such as positioner, actuator and solenoid valve. The product can be installed using only
pneumatic piping without a separate bracket. Before connecting, be sure to blow out all
piping to prevent impurities from entering in to the product and ensure that it is the right size
meeting the required capacity.
➢ If you require brackets for installation, you can check the dimensions mentioned in the
diagram on previous page and make the desired bracket type to suit each models. Below is
an example of YT-220 with bracket installation.
3.3 How to Use
1) Before supplying air pressure to the product, turn the adjustment bolt counterclockwise
so that the adjustment spring is not pressed at all.
2) Install a pressure gauge on the output port (OUT). This pressure gauge will show the
output pressure that is depressurized from the primary pressure (IN).
3) Install pressure gauge and ball valves or other fittings to the outports, and then apply air
pressure to the primary input port (IN).
4) Turn the adjust bolt clockwise, and then the secondary pressure goes up to the set value,
turn the adjusting nut of the adjusting bolt clockwise to lock it completely to prevent the
adjust bolt from moving.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 15
4. Maintenance
4.1 Replacement of Parts (Not applicable for YT-200, 200.)
YT-205 / 225 require regular maintenance. . If necessary, replace the following parts.
➢ Ass’y-diaphragm : 1 ea
4.2 Draining condensed water
➢ When draining out condensed water, the main supply pressure to the product must be
shut down completely or adjust the pressure level of 1kgf/cm2 or below.
➢ Slowly open drain plug to drain condensed water.
➢ After the draining, please close the drain plug surely.
4.3 Replacing Ass’y-diaphragm
➢ When replacing the ass’y-diaphragm, the main supply pressure to the product must be
shut down completely or adjust the pressure level of 1kgf/cm2 or below.
➢ Loosen the nut of the adjust bolt and turn the adjust bolt counterclockwise to completely
drop the output pressure to zero.
➢ Unscrew 6 bolts on spring case assembly in diagonal direction.
➢ Replace the diaphragm assembly.
➢ Lock the six bolts back on the spring case assembly. Be careful not to damage the
diaphragm due to excessive torque when tightening.
➢ Raise the supply pressure to the air filter regulator and turn the adjust bolt clockwise to
set the “set pressure”. Tightened the nut of the adjust bolt.
Air Filter Regulator
YT-200 / 205 / 220 / 225 series Product Manual
Ver. 1.01 16
Manufacturer:
Young Tech Co., Ltd
81, Hwanggeum-ro, 89 Beon-gil, Yangchon-eup
Gimpo-si, Gyeonggi-do, South Korea 10048
Tel: +82-31-986-8545
Fax: +82-70-4170-4927
Email: ytc.sales@rotork.com
Homepage : http://www.ytc.co.kr
Issued : 2018-08-28
Copyright © Young Tech Co., Ltd. All Rights Reserved.
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