Two port valves pneumatically actuated
One valve - The Spirax Sarco range of KE valves and PN5000 and PN6000 pneumatic actuators are designed to give a comprehensive selection of control valves for use on steam, water, oils and most industrial fluids. Modular in design, the KE control valve range incorporates many options within one body envelope. It is this highly flexible system which allows one valve to satisfy the needs of numerous industrial requirements. When coupled to either a PN5000 (spring to close) or PN6000 (spring to open) pneumatic diaphragm actuator, the KE control valve range provides a complete solution to most flow, pressure or temperature applications. 1 User benefits Designed and engineered by Spirax Sarco, ensuring long life and reliability. Numerous valve options for wide range of applications. ir-to-open or air-to-close option by the same actuator reduces overall costs. The amalgamation of valves, actuators and positioners in various configurations reduces costs and stock holding. Spirax Sarco's guarantee of worldwide technical support, knowledge and service. 2
so many options... 1. Reduced capacity trims Optional trim sizes to optimise control valve performance 4 2. Hard facing Hard faced seat and plug for high erosion resistance during cavitation, flashing and two phase flow applications 3. Chevron seal Standard self regulating chevron rings for constant stem friction and minimum maintenance 4. Characterised plugs Equal percentage, linear and fast opening trim options for process characteristic matching 3 2 5 5. Noise reducing trim Flow divider reduces noise and erosion from high velocity conditions 6. Soft seal trim Soft seal trims for bubble tight shut off to NSI class VI 7. ellows seal ellows seal with back up chevron seal for high temperature applications and zero emissions 8. High temperature graphite Graphite braided rings for high temperatures provide cost effective alternative to bellows seal 8 7 6 so many solutions! 3
Spirax Sarco s reputation has been built on the quality of its knowledge, service and products. For this reason every valve and actuator combination is fully tested prior to despatch to ensure installation and commissioning is quick and trouble free, and that this trouble free operation continues during the service life of the product. Our testing includes: Valve envelope pressure integrity test according to DIN 3230 and NSI 16.34 Stem seal emission test Seat and plug shut-off test to NSI 16.104 Control valve and actuator assembly function test Spirax Sarco is an ISO 9000 accredited company. Quality is assured 4
For temperature, pressure or flow control, Spirax Sarco has the answer Full range of 2-port KE valves Valve type KE71 KE73 KE73 KE43 KE43 KE63 Optional valve seals Optional valve trims 5
Typical applications Temperature control To control the flow of primary heating fluid, whether steam or hot water, to provide constant secondary temperature. pplication shows the use of pneumatic power (1) and electronic intelligence (2) on a steam to liquid heat exchanger. 2 Pressure control To control steam, water or air distribution lines at precise operating levels. The system shown is a complete pneumatic controls package using a controller (1) with pneumatic valve and positioner (2). 1 Flow control Used in conjunction with flowmeters to accurately control the flow of steam, gases or liquids. The example shows the use of an electronic controller (1) signalled from a DP cell (2). The controller delivers an electronic output to an electro-pneumatic positioner (3) on the valve actuator (4). Thermal oil control Thermal oil is sometimes used as the primary heating medium. The example shows a 2-port valve arrangement although some pipe circuits are designed to use 3-port valves. Spirax Sarco 2-port valves are available with bellows spindle seals, which are recommended in thermal oil systems. 6
Control valve sizing and selection Step 1 Determine the valve Kv Kv calculation is an iterative process requiring knowledge of valve dynamics, piping geometry factors, and outlet velocities. In practice, the sizing chart below is based on empirical values and will cater for most applications. Kv selection example Saturated /superheated steam sizing chart 0.3 0.4 0.5 1 2 3 4 5 C 10 20 30 40 50 20 30 40 50 200 300 400 500 1 000 2 000 3 000 4 000 5 000 0.005 0.05 0.02 0.03 0.01 D 0.5 0.3 0.2 0.1 F E 1 2 Kv 0.4 1 1.6 4 6.3 10 16 25 40 5 10 000 20 000 30 000 40 000 200 150 50 0 Step 2 Determine the valve size 63 160 Kv selected is 16 Kv of 16 requires a standard valve size of DN32 To select the correct valve turn to next page for step 3 7
Step 3 Select the control valve Example - From the previous page, the valve size is determined as DN32. Reference to the technical literature below allows selection by pressure and temperature. Reference to the control valve selection guide opposite allows selection of the valve depending on the available choices as shown. This example shows a DN32 KE73, Kvs 16, Flanged to PN25 Valve technical information KE71 / KE73 range ody SG iron DIN 1693 GGG 40.3 onnet SG iron DIN 1693 GGG 40.3 KE43 range ody Cast steel DIN 17245 GSC 25 onnet Cast steel DIN 17245 GSC 25 KE63 range ody Stainless steel DIN 17445 1.4581 onnet Stainless steel DIN 17440 1.4401 (DN15-50) DIN 17445 1.4581 (DN65-) Maximum valve differential pressures - Refer to operating range graphs. Technical data Plug design DN15-32 Caged parabolic DN40 - Vee port Leakage 0.01 % of Kvs Flow characteristic (standard) Equal percentage Rangeability 50:1 Travel DN15 to 50 / DN65 to 20 mm / 30 mm Control valve selection guide Valve size Specified from page 7 Valve series Valve characteristics ody material Connections Stem sealing option * Seating option * Trim * Kvs K series - 2-port E = Equal percentage L = Linear F = Fast opening 4 = Cast steel 6 = Stainless steel 7 = SG iron 1 = Screwed 3 = Flanged = ellows sealed H = High temperature packing G = Soft seal (PTFE) W = Hard facing L = Low noise To be specified Connection type See valve range on page 5 * If standard option leave blank. DN32 K E 7 3 16 PN25 Materials ll valve ranges Valve plug Stainless steel S 970 431 S29 (KE71/73/43) STM 351 CF3M (KE63) Valve seat Stainless steel S 970 431 S29 (KE71/73/43) STM 276 316L (KE63) Valve stem Stainless steel S 970 431 S29 (KE71/73/43) STM 276 316L (KE63) Gland rings PTFE chevrons onnet gasket Semi - rigid graphite laminate Operating range KE43 Temperature C 400 300 200 0 0 10 Steam saturation curve 20 30 40 Operating range KE71 / KE73 Temperature C 350 300 200 Pressure bar g Steam saturation curve 0 0 5 10 15 20 25 Pressure bar g The product must not be used in the red area. The product must have high temperature bolting and packing for use in the yellow area. Operating range KE43 Temperature C 400 300 250 200 0 0 10 Steam saturation curve 20 30 40 Pressure bar g Operating range KE71 / KE73 Temperature C 350 300 250 200 0 0 5 10 15 20 25 Pressure bar g Operating range KE63 Temperature C Steam saturation curve 400 300 250 200 Steam saturation curve 0 0 10 20 30 40 Pressure bar g The product must not be used in the red area. The product must have high temperature bolting and packing for use in the yellow area. 8 Valve selected is: 1 - DN32 KE73, with Kvs 16 flanged to PN25
Step 4 Select a spring to close actuator ctuator selection example: Valve Kv = 16 Maximum differential pressure = 5 bar g ir pressure available = 6 bar g Valve size DN Control signal is 4-20 m 15 20 25 32 40 50 65 80 Move vertically downwards from the DN32 valve. The smallest actuator, 20 mm travel 30 mm travel which will effect closure is a PN5123 actuator with 2 to 4 spring rating. ir Standard Kvs value Standard Kvs value pressure required is 4.5 bar g and a positioner is recommended. 4.0 6.3 10 16 25 36 63 160 PN 5000 series spring extend (fail close) ctuator Model Spring ir Pressure Positioner Maximum valve differential pressure ( P) bar type range required required (Refer to operating range graphs for limiting conditions) bar bar g For soft seated valves reduce p by 40% PN5 Series 5120 0.2-1.0 1.2 Optional 7.7 4.9 1.2 - - - - - - 0.4-1.2 1.4 Optional 17.6 10.1 4.4 - - - - - - 5121 0.2-0.6 1.2 Yes 7.7 4.9 1.2 - - - - - - 5122 0.6-1.0 1.2 Yes 27.4 15.4 7.7 - - - - - - 5123 2.0-4.0 4.5 Yes 40.0 40.0 30.5 14.9 10.3 5.5 - - - PN5200 Series 5220 0.2-1.0 1.2 Optional 21.3 12.1 5.6 2.2 1.8 0.7 - - - 0.4-1.2 1.4 Optional 40.0 24.6 13.4 6.1 4.5 2.2 - - - 5221 0.2-0.6 1.2 Optional 21.3 12.1 5.6 2.2 1.8 0.7 - - - 5222 0.6-1.0 1.2 Optional 40.0 37.1 21.2 10.1 7.1 3.7 - - - 5223 2.0-4.0 4.5 Yes 40.0 40.0 40.0 38.0 25.6 14.1 - - - PN5300 Series 5320 0.2-1.0 1.2 Optional 34.4 19.1 10.0 4.4 3.3 1.6 - - - 0.4-1.2 1.4 Optional 40.0 32.6 22.1 10.6 7.5 3.9 - - - 5321 0.2-0.6 1.2 Optional 34.4 19.1 10.0 4.4 3.3 1.6 - - - 5322 0.6-1.0 1.2 Optional 40.0 40.0 34.2 16.8 11.6 6.2 - - - 5323 2.0-4.0 4.5 Yes 40.0 40.0 40.0 40.0 30.0 22.3 - - - 5330 0.4-1.2 1.4 Optional - - - - - - 0.7 0.17-5333 2.0-4.0 4.5 Yes - - - - - - 11.7 7.4 4.6 PN5400 Series 5420 0.2-1.0 1.2 Optional 40.0 31.3 17.5 8.3 5.9 3.0 - - - 0.4-1.2 1.4 Optional 40.0 40.0 37.2 18.4 12.6 6.8 - - - 5421 0.2-0.6 1.2 Optional 40.0 31.3 17.5 8.3 5.9 3.0 - - - 5422 0.6-1.0 1.2 Optional 40.0 40.0 40.0 28.4 19.3 10.5 - - - 5423 2.0-4.0 4.5 Yes 40.0 40.0 40.0 40.0 30.0 30.0 - - - 5430 0.4-1.2 1.4 Optional - - - - - - 2.5 1.3 0.6 5433 2.0-4.0 4.5 Yes - - - - - - 20.2 13.1 8.3 PN5500 Series 5520 0.2-1.0 1.2 Optional 40.0 40.0 34.0 16.0 11.5 5.6 - - - 0.4-1.2 1.4 Optional 40.0 40.0 40.0 36.0 24.2 13.0 - - - 5524 0.8-1.5 2.0 Yes 40.0 40.0 40.0 40.0 30.0 27.0 - - - 5530 0.2-1.0 1.2 Optional - - - - - - 3.8 2.6 1.6 0.4-1.2 1.4 Optional - - - - - - 7.9 5.2 3.3 5534 0.8-1.5 2.0 Yes - - - - - - 15.8 10.4 6.6 PN5600 Series 5620 0.2-1.0 1.2 Optional 40.0 40.0 40.0 22.3 16.0 7.8 - - - 0.4-1.2 1.4 Optional 40.0 40.0 40.0 40.0 30.0 18.1 - - - 5624 0.8-1.5 2.0 Yes 40.0 40.0 40.0 40.0 30.0 30.0 - - - 5630 0.2-1.0 1.2 Optional - - - - - - 5.4 3.6 2.3 0.4-1.2 1.4 Optional - - - - - - 11.0 7.3 4.6 5634 0.8-1.5 2.0 Yes - - - - - - 22.0 14.5 9.2 Technical data actuators Temperature range -20 to 110 C Maximum air operating pressure = 6 bar (2.5 bar models 5500 / 5600) Linearity 2 % Hysteresis ctuator technical information 3 % Maximum ir supply connection ctuator type Connection 5 and 5200 Series 1 /8" SP 5300 and 5400 Series ¼" SP 5500 and 5600 Series ¼" NPT Compressed air consumption ctuator type Travel Volume - Ltrs (normal) Materials 5 Single spring 20 mm 0.33 Diaphragm housing Pressed steel 5200 Series 20 mm 0.99 Rolling diaphragm Fabric reinforced nitrile rubber 5300 Series 20 / 30 mm 1.39 / 1.65 Spring Spring steel 5400 Series 20 / 30 mm 2.36 / 2.78 Yorke 5 Series luminium 5500 Series 20 / 30 mm 6.2 / 7.1 Pillars Steel 5600 Series 20 / 30 mm 8.4 / 9.6 Spindle Stainless steel ctuator selected is: PN5123 with 2-4 bar spring range 9
Step 4 Select a spring to open actuator ctuator selection example: Valve Kv = 16 Maximum differential pressure = 5 bar g ir pressure available = 6 bar g Control signal 4-20m Move vertically downwards from the DN32 valve. The smallest actuator to close against differential pressure is a PN6120 actuator with 0.2 to 1.0 spring rating. ir pressure required is 4 bar g and a positioner is required. Valve size DN 15 20 25 32 40 50 65 80 20 mm travel 30 mm travel Standard Kvs value Standard Kvs value 4.0 6.3 10 16 25 36 63 160 PN 6000 series spring retract (fail open) ctuator Model Spring ir pressure Positioner Maximum valve differential pressure ( P) bar type range required required (Refer to operating range graphs on page 8 for limiting conditions) bar bar g For soft seated valves reduce p by 40% PN6 Series 0.2-1.0 1.2 Optional 7.7 4.9 1.2 - - - - - - 6120 0.2-1.0 1.4 Optional 17.6 10.1 4.4 - - - - - - 0.2-1.0 4.0 Yes 40.0 40.0 40.0 23.0 15.0 8.0 - - - 6121 0.2-0.6 0.8 Yes 7.7 4.9 1.2 - - - - - - 6122 0.6-1.0 1.2 Yes 7.7 4.9 1.2 - - - - - - PN6200 Series 0.2-1.0 1.2 Optional 21.3 12.1 5.6 2.2 1.8 0.7 - - - 6220 0.2-1.0 1.4 Optional 40.0 24.6 13.4 6.1 4.5 2.2 - - - 0.2-1.0 4.0 Yes 40.0 40.0 40.0 40.0 30.0 21.0 - - - 6221 0.2-0.6 0.8 Optional 21.3 12.1 5.6 2.2 1.8 0.7 - - - 6222 0.6-1.0 1.2 Optional 21.3 12.1 5.6 2.2 1.8 0.7 - - - PN6300 Series 0.2-1.0 1.2 Optional 34.4 19.1 10.0 4.4 3.3 1.6 - - - 6320 0.2-1.0 1.4 Optional 40.0 32.6 22.1 10.6 7.5 3.9 - - - 0.2-1.0 4.0 Yes 40.0 40.0 40.0 40.0 30.0 30.0 - - - 6321 0.2-0.6 0.8 Optional 34.4 19.1 10.0 4.4 3.3 1.6 - - - 6322 0.6-1.0 1.2 Optional 34.4 19.1 10.0 4.4 3.3 1.6 - - - 6330 0.2-1.0 1.4 Optional - - - - - - 0.7 0.17-6330 0.2-1.0 4.0 Yes - - - - - - 19.0 13.0 8.0 PN6400 Series 0.2-1.0 1.2 Optional 40.0 31.3 17.5 8.3 5.9 3.0 - - - 6420 0.2-1.0 1.4 Optional 40.0 40.0 37.2 18.4 12.6 6.8 - - - 0.2-1.0 4.0 Yes 40.0 40.0 40.0 40.0 30.0 30.0 - - - 6421 0.2-0.6 0.8 Optional 40.0 31.3 17.5 8.3 5.9 3.0 - - - 6422 0.6-1.0 1.2 Optional 40.0 31.3 17.5 8.3 5.9 3.0 - - - 6430 0.2-1.0 1.4 Optional - - - - - - 2.5 1.3 0.6 6430 2.0-1.0 4.0 Yes - - - - - - 30.0 21.0 14.0 PN6500 Series 0.2-1.0 1.2 Optional - 40.0 34.0 16.0 11.5 5.6 - - - 6520 0.2-1.0 1.4 Optional - 40.0 40.0 36.0 24.2 13.0 - - - 0.2-1.0 2.5 Yes - 40.0 40.0 40.0 30.0 30.0 - - - 0.2-1.0 1.2 Optional - - - - - - 3.8 2.6 1.6 6530 0.2-1.0 1.4 Optional - - - - - - 7.9 5.2 3.3 0.2-1.0 2.5 Yes - - - - - - 28.5 19.5 12.0 PN6600 Series 0.2-1.0 1.2 Optional - 40.0 40.0 22.3 16.0 7.8 - - - 6620 0.2-1.0 1.4 Optional - 40.0 40.0 40.0 30.0 18.1 - - - 0.2-1.0 2.5 Yes - 40.0 40.0 40.0 30.0 30.0 - - - 0.2-1.0 1.2 Optional - - - - - - 5.4 3.6 2.3 6630 0.2-1.0 1.4 Optional - - - - - - 11.0 7.3 4.6 0.2-1.0 2.5 Yes - - - - - - 40.0 27.0 17.2 Technical data actuators Temperature range -20 to 110 C Maximum air operating pressure = 6 bar(2.5 bar models 6500 / 6600) Linearity 2 % Hysteresis Compressed air consumption ctuator technical information 3 % Max ctuator type Travel Volume - Ltrs (normal) 6 Single spring 20 mm 0.33 6200 Series 20 mm 0.99 6300 Series 20 and 30 mm 1.39 / 1.65 6400 Series 20 and 30 mm 2.36 / 2.78 6500 Series 20 and 30 mm 6.2 / 7.1 6600 Series 20 and 30 mm 8.4 / 9.6 ir supply connection ctuator type Connection 6 and 6200 Series 1 /8" SP 6300 and 6400 Series ¼" SP 6500 and 6600 Series ¼" NPT Materials Diaphragm housing Rolling diaphragm Pressed steel Fabric reinforced nitrile rubber ctuator selected is: PN6120 with a 0.2-1.0 bar spring range Spring Pillars Spindle Spring steel Steel Stainless steel 10
Step 5 Select the positioner Technical specification PP5 Positioner EP5 Positioner Operating mode Pneumatic / Pneumatic Electro / Pneumatic Case material Cast aluminium with anti-corrosive paint Enclosure rating IP54 IP54 (ISP5 to EEx-ia-IIC-T6, T5, T4 CESI) ir connections ¼" NPT Maximum air supply pressure 6.0 bar g 6.0 bar g ir consumption 0.7 m 3 / h at 6.0 bar g 0.7 m 3 / h at 6.0 bar g Electrical connections - PG13.5 Input signal 0.2 to 1 bar 4-20 m Impedance - 200 ohm Hysteresis 0.5 % Sensitivity - Less than 0.2 % of span mbient temperature operating range -20 to + 80 C -15 to + 65 C Weight 2.8 kg 2.8 kg Dimensions (approx.) in millimetres PP5 Positioner EP5 Positioner C C C Depth 165 110 175 110 Positioner selected is: EP5 % Valve opening 35 With positioner Without positioner 0 0 25 % Control signal Step 6 How to order the selected control valve package Example: 11
Technical information C C C Single spring actuator Multi-spring actuator Dimensions approximate in millimetres. KE valve bodies Size DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN screwed 88 102 134 144 150 180 flanged 130 150 160 180 200 230 290 310 350 PN5 and PN6 series actuator - single spring (Total weight (kg) valve / actuator) KE71 / 73 378 378 387 392 392 396 C 147 147 147 147 147 147 weight weight weight weight weight weight weight KE 71 (kg) 5.7 6.2 7.4 8.4 10.4 12.0 KE73 (kg) 7.0 7.6 10.4 12.6 13.6 15.9 PN5200 and PN6200 series actuator - multi-spring (Total weight (kg) valve / actuator) KE71 / 73 414 414 423 428 428 432 KE71 / 73 613 611 610 618 623 624 C 217 217 217 217 217 217 KE71 (kg) 8.3 8.8 10.0 11.0 13.0 14.6 KE73 (kg) 10.6 11.2 14.0 16.2 17.2 19.5 KE71 (kg) 11.8 12.6 13.9 15.8 17.7 19.4 KE73 (kg) 13.3 14.0 16.9 20.0 20.9 23.3 PN5300 and PN6300 series actuator - multi-spring (Total weight (kg) valve / actuator) KE71 / 73 420 420 429 434 434 438 471 478 499 KE71 / 73 619 617 616 624 629 630 671 675 682 C 251 251 251 251 251 251 251 251 251 KE71 (kg) 11.6 12.1 13.3 14.3 16.3 17.9 KE73 (kg) 12.9 13.5 16.3 18.3 19.5 21.8 28.8 34.6 45.3 KE71 (kg) 15.1 15.9 17.2 19.1 21.0 22.7 KE73 (kg) 16.4 17.3 20.2 23.3 24.2 26.6 35.1 42.1 55.1 PN5400 and PN6400 series actuator - multi-spring (Total weight (kg) valve / actuator) KE71 /73 457 457 466 471 471 475 508 515 536 KE71 / 73 656 654 653 661 666 667 708 712 719 C 305 305 305 305 305 305 305 305 305 KE71 (kg) 18.3 18.8 20.0 21.0 23.0 24.6 KE73 (kg) 19.6 20.2 23.0 25.2 26.2 28.5 35.5 41.3 52.4 KE71 (kg) 21.8 22.6 23.9 25.8 27.7 29.4 KE73 (kg) 23.1 24.0 26.9 30.0 30.9 33.3 41.8 48.8 61.8 PN5500 and PN6500 series actuator - multi-spring (Total weight (kg) valve / actuator) KE71 / 73 490 490 499 504 504 508 541 548 567 KE71 / 73 689 687 686 694 699 700 741 745 752 C 405 405 405 405 405 405 405 405 405 KE71 (kg) 28.3 28.8 30.0 31.0 34.6 34.6 KE73 (kg) 29.6 30.2 33.0 35.2 38.5 38.5 45.5 51.3 62.4 KE71 (kg) 31.8 32.6 33.9 35.8 37.7 39.4 KE73 (kg) 33.1 34.0 36.9 40.0 40.9 43.3 51.8 58.8 71.8 PN5600 and PN6600 series actuator - multi-spring (Total weight (kg) valve / actuator) KE71 / 73 490 490 499 504 504 508 541 548 567 KE71 / 73 689 687 686 694 699 700 741 745 752 C 465 465 465 465 465 465 465 465 465 KE71 (kg) 38.3 38.8 40.0 41.0 44.6 44.6 KE73 (kg) 39.6 40.2 43.0 45.2 48.5 48.5 55.5 61.3 72.4 KE71 (kg) 41.8 42.6 43.9 45.8 47.7 49.4 KE73 (kg) 43.1 44.0 46.9 50.0 50.9 53.3 61.8 68.8 81.8 KE43 steel / KE63 stainless steel; additional weight (kg) increase KE43 / 43 (kg) 0.5 0.5 1.0 1.1 1.3 1.7 3.3 4.7 7.6 KE63 (kg) 0.5 0.5 1.0 1.1 1.3 1.7 3.3 4.7 7.6 Typical specification The pneumatic control shall be a DN32 Spirax Sarco KE73 SG iron two port control valve with all stainless steel internals and equal percentage flow characteristics flanged to S 4504 PN25 and coupled to a Spirax Sarco PN5123 actuator. The actuator shall incorporate low profile springs and rolling diaphragm and be designed to provide on site conversion from fail open to fail close operation. n electric to pneumatic EP5 positioner shall be provided with NMUR standard mountings and MPC2 air filter regulator. Some of the products may not be available in certain markets. Spirax-Sarco Limited, Charlton House, Cheltenham, Gloucestershire, GL53 8ER UK. Tel: +44 (0)1242 521361 Fax: +44 (0)1242 573342 E-mail: enq@spiraxuk.attmail.com Internet: www.spirax-sarco.com Copyright 1999 Spirax Sarco is a registered trademark of Spirax-Sarco Limited S-S23-01 CH Issue 8