PN1000 Series Spring Extend Pneumatic Actuators (for LE/LEA and KE/KEA Valves 2-1/2" to 4") Description A range of single spring linear actuators having 2 diaphragm sizes for matching the requirements of different valves at various differential pressures. Each actuator is fitted with a combined mechanical stroke indicator and anti-rotation guard. The actuators are designed for easy conversion from spring extend to spring retract, and vice versa, without the need for special tools. Available types Spring extend spindle actuators: PN1500 and PN1600 series. Control Valves Technical data Temperature range -20°C to +110°C (-4°F to +230°F) Maximum operating pressure 4.5 bar (65 psi) Air supply connection PN1500 and PN1600 1/4" NPT 6 4 Linear Actuators Materials No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Part Diaphragm housing Diaphragm Diaphragm plate Spring Spindle guide Bearing Yoke Housing securing nuts and bolts Spindle Connector Travel indicator Lock plate ‘O’ ring Lock-nut Cap with vent hole Spring location washer Valve spindle adapter Material Carbon steel Reinforced nitrile rubber Stainless steel Spring steel Bronze Hardened steel Cast steel Zinc plated steel Stainless steel Zinc plated steel Stainless steel Zinc plated steel Nitrile rubber Zinc plated steel Nickel plated brass Zinc plated steel Stainless steel 15 1 8 2 16 3 13 5 9 14 7 10 11 Local regulation may restrict the use of this product below the conditions quoted. Limiting conditions refer to standard connections only. In the interests of development and improvement of the product, we reserve the right to change the specification. 164 12 17 TI-P320-57-US 6.07 PN1000 Series Spring Extend Pneumatic Actuators Differential pressures for LE/LEA and KE/KEA series valves and PN1000 series actuators (spring extend) Note: The differential pressures stated in the tables below are limited by the maximum operating pressures of the selected control valve. In certain circumstances with a reduced Cv value, or where reduced valve stroke is acceptable, it may be possible to increase the maximum differential pressure above that shown in the table by special setting of the actuator. Please consult Spirax Sarco. LE and LEA, KE and KEA valve size 2-1/2"34" Travel mm 30 20 30 20 30 20 Valve capacity* Full Cv Reduced Cv Full Cv Reduced Cv Full Cv Reduced Cv 74 42 29.3 18.7 117 74 42 29.3 187 117 7442 Differential pressures shown apply to valves with standard PTFE stem seals or bellows sealed stems with either metal-to-metal or PTFE soft seat. Actuator Spring Positioner Travel range model required PN1523A320 mm 30-60 Yes - PN1533A330 mm 30-60 Yes 560 PN1653B430 mm 30-60 Yes 725 Maximum differential pressure (psi) 725 - - 725 - - 725 - -362 - 535 - 560 725 725 - - 725 - - - 226 336 - - 362 560 535 725 725 - - Differential pressures shown below apply to valves with high temperature graphite (H) stem seals and metal-to-metal seats. Actuator Spring Positioner Travel range required Maximum differential pressure (psi) model PN1523A320 mm 30-60 Yes - 725 725 725 - - 725 725 - PN1533A330 mm 30-60 Yes 557 - - -361 557 - - 224 PN1653B430 mm 30-60 Yes 725 - - - 533 725 - - 335 - - 361 557 533 725 725 - - * For fast opening, low noise and anti-cavitation trims use Full Cv column. Control Valves Installation Actuators should be mounted on the valve with the stem in a vertical position. Installation and Maintenance Instructions are supplied with the product. Spare parts Information regarding available spare parts is given on TI-P357-20 US. Linear Actuators PN1000 series actuator selection table Selection should be made in conjunction with the differential pressure chart shown above and the following code: Actuation PN Actuator action 1 Diaphragm size PN = Pneumatic = Spring to extend1 5 6 5 Actuator travel 2 3 Spring range 3 = 20 mm (3/4")2 = 30mm (1-3/16") = 2.0 to 4.0 bar (30 to 60 psi) 3 Yoke type A = Type A for valve sizes: DN65-100 (2-1/2" to 4") PN1 523 A A How to order Example: 1 off Spirax Sarco PN1523A actuator, set to 30 to 60 psig. Dimensions/weights approximate in mm (inches) and kg (pounds) Actuator PN1500 PN1600 A 405 (16") 465 (18-5/16") B C 513 (20-3/16") 150 (6") 515 (20-1/4") 150 (6") D 231 (9") 231 (9") E 204 (8") 204 (8") Spirax Sarco, Inc., 1150 Northpoint Blvd., Blythewood, SC 29016 • Phone: (803) 714-2000 • Fax: (803) 714-2222 © Spirax Sarco, Inc. 2003 Weight 55 (121) 70 (154) TI-P320-57-US 6.07 165