Related Manuals for rotork YT-1200 Series
Summary of Contents for rotork YT-1200 Series
- Page 1 Pneumatic Positioner PRODUCT MANUAL YT-1200 Series Rotork YTC Limited VERSION 1.18...
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Page 2: Table Of Contents
Pneumatic Positioner YT-1200 series Product Manual Contents Introduction ..............................4 General Information for the users ......................4 Manufacturer Warranty .........................4 Explosion Proof Warning (Only for external explosion proof product, not for positioner).....5 Product Description ...........................6 General ..............................6 Main Features and Functions .......................6 Label Description ..........................7... - Page 3 Pneumatic Positioner YT-1200 series Product Manual Rotary positioner Installation ......................28 4.4.1 Components........................... 28 4.4.2 Rotary Bracket Information ......................29 4.4.3 Rotary positioner Installation Steps ....................30 Connection - Air ............................32 Safety ..............................32 Supply Pressure Condition ........................ 32 Piping Condition ..........................
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Page 4: Introduction
Introduction General Information for the users Thank you for purchasing Rotork YTC Limited 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 commissioning the product. -
Page 5: Explosion Proof Warning (Only For External Explosion Proof Product, Not For Positioner)
If cleaning the surface of the product is needed, must use wet clothes. ➢ To meet explosion-proof marking information and ingress protection of IP66, use certified Ex-cable glands and Ex-plugs. ➢ If you need additional information about the values of the flameproof joints, contact Rotork YTC Limited directly. Ver. 1.18... -
Page 6: Product Description
YT-1200 series Product Manual Product Description General YT-1200 series Pneumatic Positioner accurately controls valve stroke in response to an input signal pressure of 0.02 ~ 0.1 MPa(0.2 ~ 1 bar) from the controller. Main Features and Functions ➢ It is compatible with most of controllers. -
Page 7: Label Description
Pneumatic Positioner YT-1200 series Product Manual Label Description • MODEL : Indicates the model number and additional options. • SERIAL NUMBER : Indicates unique serial number. • MONTH.YEAR : Indicates manufactured month and year. • AMBIENT TEMP. : Indicates the allowable ambient temperature. -
Page 8: Product Code
Pneumatic Positioner YT-1200 series Product Manual Product Code YT-1200 1 Linear Motion type Rotary Single Acting type Double 10 ~ 40 mm 30 ~ 70 mm Linear 60 ~ 100 mm 100 ~ 150 mm M6 x 34L Lever Type... -
Page 9: Product Specification
2.5 LPM (Sup. = 0.14 MPa @ idle) Weight 1.7 kg (3.1 lb) Painting Polyester Powder Coating Tested under ambient temperature of 20 °C, absolute pressure of 760 mmHg, and humidity of 65 %. Please contact Rotork YTC Limited for detailed testing specification. Ver. 1.18... -
Page 10: Specification Of External Sptm(Smart Position Transmitter) Option
0.6 kg (1.3 lb) 1.3 kg (2.9 lb) Painting Polyester Powder Coating Tested under ambient temperature of 20 °C, absolute pressure of 760 mmHg, and humidity of 65 %. Please contact Rotork YTC Limited for detailed testing specification. Ver. 1.18... -
Page 11: Specification Of External L/S Option
880 g (1.94 lb) Painting Polyester Powder Coating Tested under ambient temperature of 20 °C, absolute pressure of 760 mmHg, and humidity of 65 %. Please contact Rotork YTC Limited for detailed testing specification. External L/S Model YT-870 Housing Material... -
Page 12: Certifications Of External Products
Pneumatic Positioner YT-1200 series Product Manual Certifications of External products ※ All certifications below are posted on Rotork YTC Limited homepage(www.ytc.co.kr). SPTM-5V 2.6.1 Electromagnetic Compatibility (EMC) ➢ - EMC directive 2014/30/EC from April 2016 - EC Directive for CE conformity marking SPTM-6V 2.6.2... - Page 13 Pneumatic Positioner YT-1200 series Product Manual ➢ Rating : Ex db IIC T6 Class I, Zone 1, AEx db IIC T6 Class II, Division 1, Groups E, F and G; Ex tb IIIC T85°C Zone 21, AEx tb IIIC T85°C Type 4, 4X ;...
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Page 14: Parts And Assembly
Pneumatic Positioner YT-1200 series Product Manual Parts and Assembly YT-1200L 2.7.1 YT-1000R 2.7.2 Ver. 1.18... -
Page 15: Yt-1200R + Sptm-6V (External)
Pneumatic Positioner YT-1200 series Product Manual YT-1200R + SPTM-6V (External) 2.7.3 YT-1000R + YT-870 (External) 2.7.4 Ver. 1.18... -
Page 16: Product Dimension
Pneumatic Positioner YT-1200 series Product Manual Product Dimension YT-1200L 2.8.1 YT-1200R (Fork Lever type) 2.8.2 Ver. 1.18... -
Page 17: Yt-1200R (Namur Type)
Pneumatic Positioner YT-1200 series Product Manual YT-1200R (Namur type) 2.8.3 YT-1200R (Dome indicator) 2.8.4 Ver. 1.18... -
Page 18: Yt-1200R (External Sptm-6V)
Pneumatic Positioner YT-1200 series Product Manual YT-1200R (External SPTM-6V) 2.8.5 Ver. 1.18... -
Page 19: Yt-1000R (External Limit Switch, Yt-870)
Pneumatic Positioner YT-1200 series Product Manual YT-1000R (External Limit Switch, YT-870) 2.8.6 Ver. 1.18... -
Page 20: Principle Of Positioner Movement
Pneumatic Positioner YT-1200 series Product Manual principle of positioner movement Linear Positioner Fig. 3-1: Linear positioner with an actuator When INPUT SIGNAL PRESSURE increases to open the valve, ①the bellows stretches and pushes ②the flapper to the opposite side of ③the nozzle. The gap between ③the nozzle and ②the flapper becomes wider and from inner part of ④the pilot, air inside ⑨the chamber is exhausted through... -
Page 21: Rotary Positioner
Pneumatic Positioner YT-1200 series Product Manual Rotary Positioner Fig. 3-2: Rotary positioner with an actuator When INPUT SIGNAL PRESSURE increases to open the valve, the bellows stretches and pushes ②the flapper to the opposite side of ③the nozzle. The gap between ③the nozzle and ②the flapper becomes wider and from inner part of ④the pilot, air inside ⑨the chamber is exhausted through... -
Page 22: Installation
Pneumatic Positioner YT-1200 series Product Manual Installation Safety When installing a positioner, please ensure to read and follow safety instructions. ➢ Any input or supply pressures to valve, actuator, and / or to other related devices must be turned off. -
Page 23: Linear Positioner Installation
Pneumatic Positioner YT-1200 series Product Manual Linear positioner Installation Linear positioner should be installed on linear motion valves such as globe or gate type which uses spring return type diaphragm or piston actuators. Fig. 4-2: Installation example Before proceeding with the installation, ensure following components are available. -
Page 24: Installation Steps
Pneumatic Positioner YT-1200 series Product Manual Installation Steps 4.3.2 1) Assemble the positioner with the bracket made in previous step by fastening the bolts (M8 x 1.25P). Fig. 4-3: Attaching positioner to bracket Fig. 4-4: Attaching the bracket to actuator yoke 2) Attach the positioner with the bracket to the actuator yoke –... - Page 25 Pneumatic Positioner YT-1200 series Product Manual 4) Connect an air-filter regulator to the actuator temporarily. Supply enough air pressure to the actuator in order to position the valve stroke at 50 % of the total stroke. Fig. 4-5: Positioning the valve at 50 % of the total stroke 5) Insert the connection bar between the feedback lever and lever spring.
- Page 26 Pneumatic Positioner YT-1200 series Product Manual 6) Check if feedback lever is vertical to the valve stem at 50 % of the valve stroke. If it is not vertical, adjust the bracket or the connection bar to make vertical. Improper installation may cause poor linearity.
- Page 27 Pneumatic Positioner YT-1200 series Product Manual 8) After installing the positioner, operate the valve from 0 % to 100 % stroke by using direct air to the actuator. On both 0 % and 100 %, the linear lever stopper should not touch the stopping bosses of positioner, which is located on the backside of the positioner.
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Page 28: Rotary Positioner Installation
Pneumatic Positioner YT-1200 series Product Manual Rotary positioner Installation Rotary positioner should be installed on rotary motion valve such as ball or butterfly type which uses rack and pinion, scotch yoke or other type of actuators which its stem rotates 90 degrees. Before proceeding with the installation, ensure following components are available. -
Page 29: Rotary Bracket Information
Pneumatic Positioner YT-1200 series Product Manual Rotary Bracket Information 4.4.2 The rotary bracket set(included with the positioner) contains three components. The bracket is designed to fit onto the actuator with 20 mm, 30 mm and 50 mm stem height (H) according to VDI/VDE 3845 standard. -
Page 30: Rotary Positioner Installation Steps
Pneumatic Positioner YT-1200 series Product Manual Rotary positioner Installation Steps 4.4.3 1) Please check the actuator’s stem height and adjust the brackets by referring to the above bracket figures. 2) Attached the brackets onto the actuator. It is recommended to use spring washer so the bolts will not be loosen from vibration. - Page 31 Pneumatic Positioner YT-1200 series Product Manual 5) (Only Fork lever type) After determining fork lever direction, adjust F between the top plate of fork lever and the top face of actuator as below table. Fasten lock nuts which are located on the bottom of the fork lever.
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Page 32: Connection - Air
Supply pressure should be clean and dry air – avoiding moisture, oil and dust. ➢ Always recommended to use air filter regulator (i.e. YT-200 series). Rotork YTC Limited has not tested positioner’s operation with any other gases other than ➢ clean air. Please contact Rotork YTC Limited for any questions. -
Page 33: Connection - Piping With Actuator
Pneumatic Positioner YT-1200 series Product Manual Connection – Piping with actuator Single acting actuator 5.4.1 Singe acting type positioner is set to use only Out1 port. Out1 port of positioner should be connected with port of actuator when using spring return actuator of single acting type. - Page 34 Pneumatic Positioner YT-1200 series Product Manual Fig. 5-4: Setting directions of piping and span for linear RA single actuator Fig. 5-5: Setting directions of piping and cam for rotary single actuator Ver. 1.18...
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Page 35: Double Acting Actuator
Pneumatic Positioner YT-1200 series Product Manual Double acting actuator 5.4.2 Double acting type positioner is set to use both Out1 and Out2 port. As input signal increases, the supply pressure will be supplied through Out1 of positioner to actuator and the exhausting air from actuator will be exhausted through Out2 of positioner. - Page 36 Pneumatic Positioner YT-1200 series Product Manual Fig. 5-9: Setting directions of piping and cam for rotary double actuator Ver. 1.18...
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Page 37: Adjustments
Pneumatic Positioner YT-1200 series Product Manual Adjustments Ra or Da Setting Linear Positioner 6.1.1 1) If the actuator axis moves down when input signal is increased, assemble the “Span” to upper M6 Tap hole like the below figure.(DA) Fig. 6-1: Span Installation (DA) Fig. -
Page 38: Rotary Positioner
Pneumatic Positioner YT-1200 series Product Manual 2) If the actuator axis moves up when input signal is increased, assemble the “Span” to lower M6 Tap hole like the below figure.(RA) Fig. 6-3: Span Installation (RA) Rotary positioner 6.1.2 1) If the actuator axis rotates clockwise when input signal is increased, in case of need, re-assemble the CAM so that “DA(Direct Acting)”... -
Page 39: Adjustment - Zero Point
Pneumatic Positioner YT-1200 series Product Manual Fig. 6-6: Parts (Standard) Adjustment - Zero Point Set input signal pressure at 0.02 MPa (or 0.1 MPa) as the initial signal and rotate the adjuster of zero unit handle upward or downward to adjust actuator’s zero point. Please refer to the below figure to increase or decrease the zero point Fig. -
Page 40: Adjustment - Span
Pneumatic Positioner YT-1200 series Product Manual Adjustment - Span 1) After setting zero point, supply input signal pressure at 0.1 MPa (or 0.02 MPa) as the end ampere and check the actuator stroke. If the stroke is too low, the span should be increased. If the stroke is too high, the span should be decrease. -
Page 41: Adjustment - A/M Switch (Auto/Manual)
Pneumatic Positioner YT-1200 series Product Manual Adjustment – A/M switch (Auto/Manual) 1) Auto manual switch is on the top of pilot unit. Auto manual switch allows the positioner to be functioned as by-pass. If the counter-clockwise (toward “M”, Manual), it is loosened, then the supply pressure will be directly supplied from out1 port of positioner to the actuator regardless of input signal pressure. -
Page 42: Orifice Installment
Pneumatic Positioner YT-1200 series Product Manual Orifice Installment If the actuator size is too small relative to the flow rate of positioner, hunting can occur. In order to avoid hunting, the orifices can be installed in the outports of the pilot. -
Page 43: Maintenance
Pneumatic Positioner YT-1200 series Product Manual Maintenance Pilot valve 1) If Supply air pressure is not stable or Supply air is not clean, the positioner may not function properly. Air quality and pressure should be checked regularly to see if the air is clean and pressure set is normal. -
Page 44: Troubleshooting
1) Check auto manual switch. If the switch has been damaged, replace the switch or pilot relay valve. 2) Check for a gap or damages between the nozzle and the flapper. If damaged, please send the product to the corresponding local Rotork YTC Limited office or main office in South Korea for repair. - Page 45 Pneumatic Positioner YT-1200 series Product Manual ➢ Linearity is too low. 1) Check if linear positioner is properly positioned. Especially check if the feedback lever is parallel to the ground at 50 % point. 2) Check if zero and span point have been properly adjusted. If either one of values is being adjusted, another one must be re-adjusted as well.
- Page 46 Product Manual Manufacturer: Rotork YTC Limited Address: 81, Hwanggeum-ro, 89 Beon-gil, Yangchon-eup, Gimpo-si, Gyeonggi-do, South Korea Postal code: 10048 Tel: +82-31-986-8545 Fax: +82-70-4170-4927 Email: ytc.sales@rotork.com Homepage : http://www.ytc.co.kr Issued : 2021-10-05 Copyright © Rotork YTC Limited. All Rights Reserved. Ver. 1.18...
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