Pressure Independent Control Series Technical Instructions Document No. 155-522 October 19, 2021 Two-Way Cast Iron Flanged Bodies, ANSI 125 and 250 Siemens Industry, Inc. Description Siemens Pressure Independent Control Valves integrate three functions into a single device: control valve, adjustable flow limiter, and automatic differential pressure regulator. They are available in both ANSI Class 125 and 250. Features • Control valve with integrated differential pressure regulator and adjustable flow limiter • ANSI 125 and ANSI 250 bodies and flanges • 2-1/2-, 3-, 4-, 5-, and 6-inch (65, 80, 100, 125, and 150 mm) • Field adjustable presetting • < ANSI Class IV leakage (0.01%) • Pressure test (P/T) points • Can be equipped with SAX, SAV, or SQV electromotoric actuators Product Numbers Table 1. Product Number ANSI Pressure Class Line Size Inch (mm) Maximum Flow Range GPM (m 3 /h) ∆p Regulator Operating Range psi (kPa) 599-07310 125 2.5 (65) 19 to 110 (4.4 to 25) 3.6 to 90 (25 to 600) 599-07320 250 599-07330 125 21 to 132 (4.8 to 30) * to 90 (30 to 600) 599-07335 250 599-07331 125 3 (80) 31 to 195 (7 to 44) * to 90 (35 to 600) 599-07336 250 599-07312 125 4 (100) 55 to 300 (12 to 68) 5 to 90 (35 to 600) 599-07322 250 599-07317 125 65 to 395 (15 to 90) 10 to 90 (70 to 600) 599-07327 250 599-07313 125 5 (125) 85 to 485 (18 to 110) 5 to 90 (35 to 600) 599-07323 250 599-07318 125 105 to 595 (23 to 135) 8 to 90 (55 to 600) 599-07328 250 599-07314 125 6 (150) 115 to 650 (26 to 148) 5 to 90 (35 to 600) 599-07324 250 599-07319 125 140 to 860 (32 to 195) 9 to 90 (62 to 600) 599-07329 250 * Note: See Table 9 for minimum ∆p at each given presetting. Technical Instructions Pressure Independent Control Series Valves Two-Way Document Number 155-522 Cast Iron Flanged Bodies, ANSI 125 and 250 October 19, 2021 Page 2 Siemens Industry, Inc. Application • For use in heating, ventilating and air conditioning systems as a control valve • For closed loop hot or chilled water applications Caution Notations CAUTION: Equipment damage may occur if you do not perform a procedure as specified. Specifications Functional Data Line size 2-1/2-inch (65 mm) to 6-inch (150 mm) Body style Flanged Pressure class ANSI 125 and ANSI 250 Pressure regulation flow accuracy ± 5% Valve characteristic Linear Close-off 100 psi (700 kPa) Leakage rate < ANSI Class IV (0 to 0.01% of nominal maximum flow) Operating direction Normally open (push to close) Permissible media Hot water, chilled water, water/glycol solution Medium temperature range 34°F to 250°F (1°C to 121°C) Nominal stroke 2.5- and 3-inch 3/4-inch (20 mm) 4- to 6-inch 1-1/2-inch (40 mm) Materials Valve body Cast iron Stem, spring, seat Stainless steel Plug Brass (DZR) Regulator Stainless steel Seals EPDM (peroxide cured) General ambient conditions Temperature Operation 5°F to 131°F (-15°C to 55°C) Transport -22°F to 149°F (-30°C to 65°C) Storage 5°F to 122°F (-15°C to 50°C) Humidity Operation 5 to 95% rh Transport <95% rh Storage 5 to 95% rh Miscellaneous Canadian Registration Number OH7645.5R1 (2.5- and 3-inch LF and HF only) Table 2. Cast Iron Valve Body Ratings. Temperature Pressure psig (kPa) °F °C ANSI Class 125 ANSI Class 250 –20 to 150 –30 to 66 200 (1387) 500 (3447) 200 93 190 (1310) 460 (3171) 250 121 175 (1206) 415 (2861) 300 149 165 (1137) 375 (2585) 400 204 140 (965) 290 (1999) 450 232 125 (861) 250 (1723) Pressure Independent Control Series Valves Two-Way Technical Instructions Cast Iron Flanged Bodies, ANSI 125 and 250 Document Number 155-522 October 19, 2021 Siemens Industry, Inc. Page 3 Table 3. Close-off Pressures for Electronic Actuators. Valve Size In. (mm) SAX Non-Spring Return SAV SQV psi kPa psi kPa psi kPa 2-1/2 (65) 100 700 100 700 100 700 3 (80) 100 700 100 700 100 700 4 (100) ̶ ̶ 100 700 100 700 5 (125) ̶ ̶ 100 700 100 700 6 (150) ̶ ̶ 100 700 100 700 Mechanical Design Figure 1. 599-0731X and 599-0732X Series Valves. 1 Ring with dial for presetting 2 Aperture for the differential pressure regulator is linked with inlet port A 3 Differential pressure regulator 4 Flow limiter with variable presetting opening 5 Control valve 6 Low pressure test point (P/T) at outlet port B, blue ribbon, P2 7 High pressure test point (P/T) at inlet port A, red ribbon, P1 A Inlet port A B Outlet port B Figure 2. 599-0733X Series Valves. 1 Ring with dial for presetting 2 Aperture for the differential pressure regulator is linked with inlet port A 3 Differential pressure regulator 4 Flow limiter with variable presetting opening 5 Control valve 6 Low pressure test point (P/T) at outlet port B, blue ribbon, P3 7 High pressure test point (P/T) at inlet port A, red ribbon, P1 A Inlet port A B Outlet port B Technical Instructions Pressure Independent Control Series Valves Two-Way Document Number 155-522 Cast Iron Flanged Bodies, ANSI 125 and 250 October 19, 2021 Page 4 Siemens Industry, Inc. Pressure Test Points The 599-0731X and 599-0732X Series PICV are equipped with two pressure test points (P1, P2) for measuring the differential pressure across the valve during commissioning or operation. See Figure 3. The 599-0733X Series PICV are equipped with three pressure test points (P1, P2, P3) for measuring and monitoring the differential pressure across the control valve and across the PICV during commissioning or for analysis during operation. See Figure 4. Operation The Pressure Independent Control Valves combine three functions (see Figure 3): • a control valve (5) for controlling the volumetric flow, • a field-adjustable flow limiter (4) with a dial (1) for a pre-settable maximum volumetric flow, • a differential pressure regulator (3) that automatically adjusts to pressure fluctuations in the hydraulic system respectively across the control valve to maintain a constant flow. The mechanical series-connected differential pressure regulator keeps the differential pressure constant across the control valve, thus maintaining constant flow. The desired maximum volumetric flow can be preset with the field adjustable flow limiter. The building automation system controller (not shown) and the actuator regulate the volumetric flow and consequently the desired temperature in buildings, rooms or zones. Figure 3. 599-0731X and 599-0732X Series Pressure Independent Control Valve Operation. A Inlet medium (inlet port A) B Outlet medium (outlet port B) 1 Flow limiter with dial for presetting 3 Differential pressure regulator 5 Control valve with mounted actuator P1 P/T port, high pressure test point (red ribbon) at the inlet port A of the PICV P2 P/T port, low pressure test point (blue ribbon) at the outlet port of the PICV Figure 4. 599-0733X Series Pressure Independent Control Valve Operation. A Inlet medium (inlet port A) B Outlet medium (outlet port B) 1 Flow limiter with dial for presetting 3 Differential pressure regulator 5 Control valve with mounted actuator P1 P/T port, high pressure test point (red ribbon) at the inlet port A of the PICV P2 P/T port, low pressure test point (blue ribbon) at the outlet port of the control valve P3 P/T port, low pressure test point (blue ribbon) at the outlet port of the PICV Pressure Independent Control Series Valves Two-Way Technical Instructions Cast Iron Flanged Bodies, ANSI 125 and 250 Document Number 155-522 October 19, 2021 Siemens Industry, Inc. Page 5 Medium Flow The medium entering the Pressure Independent Control Valve (inlet port A) first passes through the variable presetting opening (see Figure 1 and Figure 2) which is connected to the ring with a dial (1) for presetting the desired maximum volumetric flow. The actuator (M in Figure 3 and Figure 4) opens and accurately positions the control valve. Then, the medium flows through control valve (5) with a linear characteristic. Before leaving the Pressure Independent Control Valve (outlet port B), the medium passes through a built-in mechanical differential pressure regulator (3). This differential pressure regulator is the heart of the Pressure Independent Control Valve and ensures that the selected volumetric flow is maintained across the whole working range and independent of the inlet pressure. Manual Control Manual control is only possible with a mounted actuator. Advantages The advantages of Pressure Independent Control Valves are: • Once the flow limiter is set to design flow, the hydronic circuit self balances, even when changes to the system are made, such as additions. • For any heat demand the Pressure Independent Control Valve with mounted actuator can be set to the desired volumetric flow and will remain constant regardless of pressure fluctuations in the system. Constant flow regardless of pressure changes in the system leads to a more stable control, less wasted energy and greater comfort. Volumetric Flow/ Dial Presetting Tables to determine the dial setting for a desired volumetric flow. Table 4. 2-1/2-Inch Valves Flow Rates. Low Flow Valves P/N 599-07310, 599-07320 599-0733X Series Valves P/N 599-07330, 599-07335 Setting Max. GPM Max. m 3 /h Setting Max. GPM Max. m 3 /h 4.0 110.0 25.0 4.0 132 30 3.8 102.1 23.2 3.8 125 28.5 3.6 94.7 21.5 3.6 118 26.9 3.4 87.7 19.9 3.4 111 25.2 3.2 81.3 18.5 3.2 104 23.6 3.0 75.3 17.1 3.0 96 21.9 2.8 69.7 15.8 2.8 89 20.2 2.6 64.5 14.6 2.6 81 18.5 2.4 59.6 13.5 2.4 74 16.8 2.2 55.0 12.5 2.2 66 15 2.0 50.6 11.5 2.0 58 13.2 1.8 46.4 10.5 1.8 52 11.9 1.6 42.2 9.6 1.6 47 10.6 1.4 38.0 8.6 1.4 42 9.6 1.2 33.7 7.7 1.2 38 8.6 1.0 29.2 6.6 1.0 32 7.2 0.8 24.5 5.6 0.8 26 5.9 0.6 19.3 4.4 0.6 21 4.8 Technical Instructions Pressure Independent Control Series Valves Two-Way Document Number 155-522 Cast Iron Flanged Bodies, ANSI 125 and 250 October 19, 2021 Page 6 Siemens Industry, Inc. Table 5. 3-Inch Valves Flow Rates. 599-0733X Series Valves P/N 599-07331, 599-07336 Setting Max. GPM Max. m 3 /h 4.0 195 44.3 3.8 183 41.5 3.6 171 38.8 3.4 161 36.5 3.2 151 34.2 3.0 138 31.3 2.8 125 28.3 2.6 114 25.9 2.4 103 23.5 2.2 95 21.5 2.0 85 19.4 1.8 76 17.2 1.6 66 15.0 1.4 60 13.6 1.2 54 12.2 1.0 47 10.6 0.8 40 9.0 0.6 31 7.1 Table 6. 4-Inch Valves Flow Rates. Low Flow Valves P/N 599-07312, 599-07322 High Flow Valves P/N 599-07317, 599-07327 Setting Max. GPM Max m3/h Setting Max. GPM Max m3/h 4.0 300 68 4.0 395 90 3.8 273 62 3.8 360 82 3.6 250 57 3.6 327 74 3.4 229 52 3.4 298 68 3.2 210 48 3.2 272 62 3.0 194 44 3.0 250 57 2.8 179 41 2.8 230 52 2.6 166 38 2.6 212 48 2.4 154 35 2.4 196 45 2.2 143 32 2.2 181 41 2.0 132 30 2.0 168 38 1.8 122 28 1.8 154 35 1.6 112 26 1.6 141 32 1.4 102 23 1.4 128 29 1.2 91 21 1.2 114 26 1.0 80 18 1.0 99 23 0.8 67 15 0.8 83 19 0.6 55 12 0.6 65 15 Pressure Independent Control Series Valves Two-Way Technical Instructions Cast Iron Flanged Bodies, ANSI 125 and 250 Document Number 155-522 October 19, 2021 Siemens Industry, Inc. Page 7 Table 7. 5-Inch Valves Flow Rates. Low Flow Valves P/N 599-07313, 599-07323 High Flow Valves P/N 599-07318, 599-07328 Setting Max. GPM Max m 3 /h Setting Max. GPM Max m 3 /h 4.0 485 110 4.0 595 135 3.8 446 101 3.8 550 125 3.6 412 94 3.6 511 116 3.4 382 87 3.4 475 108 3.2 355 81 3.2 443 101 3.0 330 75 3.0 414 94 2.8 308 70 2.8 387 88 2.6 286 65 2.6 361 82 2.4 266 60 2.4 336 76 2.2 246 56 2.2 312 71 2.0 227 52 2.0 288 66 1.8 207 47 1.8 264 60 1.6 188 43 1.6 240 55 1.4 167 38 1.4 215 49 1.2 147 33 1.2 188 43 1.0 125 29 1.0 161 37 0.8 104 24 0.8 132 30 0.6 85 18 0.6 105 23 Table 8. 6-Inch Valves Flow Rates. Low Flow Valves P/N 599-07314, 599-07324 High Flow Valves P/N 599-07319, 599-07329 Setting Max. GPM Max m 3 /h Setting Max. GPM Max m 3 /h 4.0 650 148 4.0 860 195 3.8 610 139 3.8 796 181 3.6 571 130 3.6 737 167 3.4 533 121 3.4 683 155 3.2 497 113 3.2 632 144 3.0 462 105 3.0 586 133 2.8 429 98 2.8 542 123 2.6 398 90 2.6 501 114 2.4 367 83 2.4 463 105 2.2 338 77 2.2 427 97 2.0 310 70 2.0 392 89 1.8 282 64 1.8 358 81 1.6 255 58 1.6 324 74 1.4 228 52 1.4 291 66 1.2 201 46 1.2 256 58 1.0 173 39 1.0 220 50 0.8 143 33 0.8 182 41 0.6 115 26 0.6 140 32 Technical Instructions Pressure Independent Control Series Valves Two-Way Document Number 155-522 Cast Iron Flanged Bodies, ANSI 125 and 250 October 19, 2021 Page 8 Siemens Industry, Inc. Engineering Notes CAUTION: Install the valve so that the flow of the medium matches the direction of the arrow on the valve body. Failure to do so may damage the differential pressure regulator. Recommendations • A strainer or dirt trap should be fitted upstream of the valve to enhance reliability and service life. • Remove dirt, welding beads, and so on from valves and pipes. • Do not insulate the actuator bracket; air circulation must be ensured. Mounting Notes Pressure Independent Control Valves and actuators can be easily assembled on site. Neither special tools nor adjustments, besides the presetting, are required. Prior to mounting the actuator, the required volumetric flow must be set. Each valve is supplied with a bib tag indicating the maximum GPM flow for each setting of the flow limiter. Figure 5. Accepted Mounting Positions. Installation • Install the valve so that the flow follows the direction of the arrow indicated on the valve body identification tag. • For best performance, install the valve assembly with the actuator above the valve body. The valve and actuator can be installed in any position between vertical and horizontal. It is not recommended to install the valve assembly below horizontal or upside down. • For flange dimensions and bolt hole information, see Cast Iron Flange Dimensions for 2-1/2 through 6” Valves Technical Bulletin (155-303P25 [TB 248]). • Allow sufficient space for servicing the valve and actuator. See Figure 9. 599-0733X Series Valves. • Table 10 for valve body dimensions, and dimensions of the service envelope recommended around the actuator. NOTE: Instructions for field mounting an actuator, spring adjustments, wiring diagrams, and start-up are covered in the Technical Instructions and Installation Instructions for each actuator. Pressure Independent Control Series Valves Two-Way Technical Instructions Cast Iron Flanged Bodies, ANSI 125 and 250 Document Number 155-522 October 19, 2021 Siemens Industry, Inc. Page 9 Presetting It is recommended to mount the actuator before the presetting. 1. Mount the actuator in the desired orientation and tighten the valve neck coupling. 2. If using an SQV Actuator, slide the anti-rotation device over the stem with the open end guided by the actuator pillar. Do not tighten on valve stem. 3. Mount the valve stem coupling and tighten slightly. 4. Make the presetting as shown below. Do NOT adjust presetting to a dial reading lower than 0.6. Use an open-ended, 8 mm wrench to turn the stem with dial to the desired presetting position. 5. Tighten the stem coupling. 6. Using a 2.5 mm hex wrench, tighten the SQV anti-rotation device onto the valve stem. Figure 6. Maximum GPM Flow Figure 7. Maximum GPM Presetting Scale for 599-0731X Flow Presetting Scale for and 599-0732X Series Valves. 599-0733X Series Valves. Table 9. Presettings with Corresponding Nominal Flow and Minimum p for 599-0733X Series Valves Size Presetting 4 3.8 3.6 3.4 3.2 3 2.8 2.4 2.2 2 1.8 1.6 1.4 1.2 1 0.8 0.6 2.5” Nominal Flow (gpm) 132 125 118 111 104 96 89 74 66 58 52 47 42 38 32 26 21 Min Δ p (psi) 4.4 4.3 4.2 4.2 4.1 4 4 3.8 3.8 3.7 3.6 3.5 3.5 3.4 3.3 3.3 3.2 3” Nominal Flow (gpm) 195 183 171 161 151 138 125 103 95 85 76 66 60 54 47 40 31 Min Δ p (psi) 4.9 4.8 4.7 4.6 4.5 4.3 4.2 4 3.9 3.8 3.6 3.5 3.4 3.3 3.1 3 2.9 Next >