Powermite 599 Series Technical Instructions Document No. 155-196P25 VF 599-5 June 17, 2020 MT Series Terminal Unit Two-way Valves Siemens Industry, Inc. Description The Powermite 599 Series ANSI Class 250 MT Series two-way valve bodies work with any MT Series pneumatic or electronic actuator with a 7/32-inch (5.5 mm) stroke. Features • Direct coupled universal bonnet • Choice of brass or stainless steel trim • ANSI Leakage Class IV (0.01% of Cv) Application A typical application for the Powermite two-way valve is the control of hot or chilled water or low pressure (<15 psi with stainless steel trim only) steam for convectors, fan coil units, unit conditioners, radiation, reheat coils, and similar terminal units requiring an actuator that delivers a minimum of 67 pounds force (300 N). Product Numbers See Table 2. Ordering a Valve Plus Actuator Assembly To order a complete valve plus actuator assembly from the factory, combine the actuator prefix code with the suffix of the valve assembly product number. See Technical Bulletin TB251 (155-306P25) for selection procedure and ordering codes. Valve assemblies can be ordered using the numbers in Table 2. Specifications Valve size 1/2 inch to 1 inch (15 mm to 25 mm) Capacity See Tables 3 through 6 and Figure 1 Body style Globe Seat style Metal-to-metal Action Normally open/normally closed Valve body rating ANSI Class 250; See Table 1. Stem travel (Stroke) 7/32-inch (5.5 mm) Technical Instructions Powermite 599 MT Series Terminal Unit 2-way Valves Document Number 155-196P25 June 17, 2020 Page 2 Siemens Industry, Inc. Specifications Material Body 1/2- and 3/4-inch C37700 Forged brass 1-inch UNS CA 844 Bronze Body trim See Table 2. Stem Stainless steel ASTM A582 Type 303 Packing Ethylene propylene O-ring Operating Spring Range Normally closed 10 to 15 psi (69 to 102 kPa) Normally open 3 to 8 psi (21 to 55 kPa) Controlled medium Water, low pressure steam (<15psi with stainless steel trim only), water-glycol solutions to 50% Medium temperature range 35°F to 250°F (2°C to 120°C) Maximum inlet pressure See Table 1. Maximum recommended differential pressure for modulating service Brass Trim Stainless Steel Trim Liquid 25 psi (173 kPa) 50 psi (345 kPa) Steam — 15 psi (103 kPa) Rangeability Cv <1 >50:1 Cv >1 >100:1 Close-off pressures See Table 7, Table 8, and Figure 2 Close-off ratings According to ANSI/FCI 70-2 Leakage rate Class IV (0.01% of Cv) Flow characteristics Modified equal percentage Miscellaneous Canadian Registration Numbers 0H7645.5 0C0838.9 Mounting location NEMA 1 (interior only) Dimensions See Table 9, Table 10, and Figure 4 Valve Weight See Table 10. Service Kit Sealing rings for union valves (package of 25) 1/2-inch (15 mm) 698-088 3/4-inch (20 mm) 599-03394 Union connection kit 1/2-inch (15 mm) 599-02941 3/4-inch (20 mm) 599-02942 Protective black knob to cover the bonnet and threads/manual override. 426888950 Powermite 599 MT Series Terminal Unit 2-way Valves Technical Instructions Document Number 155-196P25 June 17, 2020 Siemens Industry, Inc. Page 3 Table 1. Body Temperature-Pressure Rating. Valve Body Temperature Pressure °F °C psig (kPa) Bronze/ Forged Brass -20 to 150 (-30 to 66) 400 (2758) 200 (93) 385 (2655) 250 (121) 365 (2586) 300 (149) 335 (2300) 350 (177) 300 (2068) Female NPT x Female NPT FxF Female NPT x Union Male FxUM Angle Female x Union Male AFxUM Table 2. Product Part Numbers. Action Flow Rate Nominal Valve Size Trim and Connection Cv (Kvs) Inches (mm) Stainless Steel Brass F×F F×UM AF×UM F×F F×UM AF×UM Normally Closed 0.4 (0.34) 1/2 (15) 599-02015 599-02016 — 599-02000 599-02001 — 0.63 (0.54) 1/2 (15) 599-02017 599-02018 — 599-02002 599-02003 — 1.0 (0.85) 1/2 (15) 599-02019 599-02020 — 599-02004 599-02005 — 1.6 (1.37) 1/2 (15) 599-02021 599-02022 — 599-02006 599-02007 — 2.5 (2.15) 1/2 (15) 599-02023 599-02024 — 599-02008 599-02009 — 4.0 (3.44) 1/2 (15) 599-02025 599-02026 — 599-02010 599-02011 — 6.3 (5.43) 3/4 (20) 599-02027 599-02028 — 599-02012 599-02013 — 10 (8.6) 1 (25) 599-02029 — — 599-02014 — — Normally Open 0.4 (0.34) 1/2 (15) 599-02047 599-02048 — 599-02030 599-02031 — 0.63 (0.54) 1/2 (15) 599-02049 599-02050 — 599-02032 599-02033 — 1.0 (0.85) 1/2 (15) 599-02051 599-02052 — 599-02034 599-02035 — 1.6 (1.37) 1/2 (15) 599-02053 599-02054 — 599-02036 599-02037 — 2.5 (2.15) 1/2 (15) 599-02055 599-02056 599-02057 599-02038 599-02039 599-02040 4.0 (3.44) 1/2 (15) 599-02058 599-02059 599-02060 599-02041 599-02042 599-02043 6.3 (5.43) 3/4 (20) 599-02061 599-02062 — 599-02044 599-02045 — 10 (8.6) 1 (25) 599-02063 — — 599-02046 — — Technical Instructions Powermite 599 MT Series Terminal Unit 2-way Valves Document Number 155-196P25 June 17, 2020 Page 4 Siemens Industry, Inc. Table 3. Maximum Water Capacity - U.S. Gallons per Minute. Valve Size Inches Pressure Differential - psi Cv\1 2 3 4 5 6 8 10 15 20 25 30 40 50 60 75 1/2 0.4 0.6 0.7 0.8 0.9 1.0 1.1 1.3 1.5 1.8 2.0 2.2 2.5 2.8 3.1 3.5 0.63 0.9 1.1 1.3 1.4 1.5 1.8 2.0 2.4 2.8 3.2 3.5 4.0 4.5 4.9 5.5 1.0 1.4 1.7 2.0 2.2 2.5 2.8 3.2 3.9 4.5 5.0 5.5 6.3 7.1 7.8 8.7 1.6 2.3 2.8 3.2 3.6 3.9 4.5 5.1 6.2 7.2 8.0 8.8 10.1 11.3 12.4 13.9 2.5 3.5 4.3 5.0 5.6 6.1 7.1 7.9 9.7 11.2 12.5 13.7 15.8 17.7 19.4 22 4 5.7 7 8.0 8.9 10 11.3 12.6 15.5 17.9 20.0 21.9 25 28 31 35 3/4 6.3 8.9 10.9 12.6 14.1 15.4 17.8 20 24 28 32 35 40 45 49 55 1 10 14.1 17.3 20 22 24 28 32 39 45 50 55 63 71 77 87 Table 4. Maximum Water Capacity - Cubic Meters per Hour (m 3 /hr). Valve Size Pressure Differential - kPa mm 1 10 20 30 40 50 60 80 Kvs/ 100 150 200 300 400 500 15 0.03 0.11 0.15 0.19 0.22 0.24 0.26 0.30 0.34 0.42 0.48 0.59 0.68 0.76 0.05 0.17 0.24 0.30 0.34 0.38 0.42 0.48 0.54 0.66 0.76 0.94 1.08 1.21 0.09 0.27 0.38 0.47 0.54 0.60 0.66 0.76 0.85 1.0 1.2 1.5 1.7 1.9 0.14 0.43 0.61 0.75 0.87 0.97 1.06 1.23 1.37 1.7 1.9 2.4 2.7 3.1 0.21 0.68 0.96 1.17 1.35 1.51 1.66 1.91 2.15 2.6 3.0 3.7 4.3 4.8 0.34 1.1 1.5 1.9 2.2 2.4 2.7 3.1 3.4 4.2 4.9 6.0 6.9 7.7 20 0.54 1.7 2.4 3.0 3.4 3.8 4.2 4.9 5.4 6.7 7.7 9.4 10.9 12.1 25 0.86 2.7 3.8 4.7 5.4 6.1 6.7 7.7 8.6 10.5 12.2 14.9 17.2 19.2 32 1.4 4.4 6.2 7.6 8.7 9.8 10.7 12.3 13.8 16.9 19.5 23.9 27.6 30.9 40 2.2 6.8 9.6 11.8 13.6 15.2 16.7 19.2 22 26 30 37 43 48 Powermite 599 MT Series Terminal Unit 2-way Valves Technical Instructions Document Number 155-196P25 June 17, 2020 Siemens Industry, Inc. Page 5 Table 5. Maximum Steam Capacity - Pounds per Hour. Valve Size Inches Inlet Pressure - psig 2 5 10 15 Pressure Differential - psi Cv/1 1 2 1 2 3 4 5 2 4 6 8 10 6 9 12 15 1/2 0.4 4.8 6.7 5.2 7.3 8.8 10.0 11.0 8.2 11.3 13.6 15.3 16.7 15.0 17.9 20.0 21.6 0.63 7.5 10.5 8.2 11.4 13.8 15.7 17.4 12.9 17.8 21.3 24.1 26 23.7 28.2 32 34 1.0 12.0 16.6 13.0 18.2 22 25 28 20 28 34 38 42 38 45 50 54 1.6 19.1 27 21 29 35 40 44 33 45 54 61 67 60 72 80 86 2.5 30 42 33 45 55 62 69 51 71 85 96 104 94 112 125 135 4 48 67 52 73 88 100 110 82 113 136 153 167 150 179 200 216 3/4 6.3 75 105 82 114 138 157 174 129 178 213 241 263 237 282 316 341 1 10 120 166 130 182 219 250 275 204 283 339 382 417 376 447 501 541 Table 6. Steam Capacity - Kilograms per Hour. Valve Size mm Inlet Pressure - kPa 50 100 Pressure Differential – kPa Kvs 10 25 10 20 50 15 0.34 1.7 2.7 2.4 3.4 5.4 0.54 2.7 4.3 3.8 5.4 8.5 0.85 4.3 6.8 6 8.5 14 1.37 6.9 10.8 10 14 22 2.15 10.7 17 15 21 34 3.4 17 27 24 34 54 20 5.4 27 43 38 54 85 25 8.6 43 68 60 85 135 Technical Instructions Powermite 599 MT Series Terminal Unit 2-way Valves Document Number 155-196P25 June 17, 2020 Page 6 Siemens Industry, Inc. Figure 1. Water Capacity Graph. Selection Example See Figure 1. Select a valve given: Required flow = 20 gpm. Desired pressure drop = 5 psi. Choose a 1-inch (25-mm) valve, Cv 10. Powermite 599 MT Series Terminal Unit 2-way Valves Technical Instructions Document Number 155-196P25 June 17, 2020 Siemens Industry, Inc. Page 7 Table 7. Close-off Pressures for Electronic Actuators. Action Valve Size Inches (mm) SAS psi (kPa) SSC psi (kPa) NC 1/2 0.4< Cv <1.6 95 (655) 95 (655) (15) (0.34< Kvs <1.37) 1/2 2.5< Cv <4 50 (345) 50 (345) (15) (2.15< Kvs <3.44) 3/4 (20) 40 (276) 40 (276) 1 (25) NO 1/2 0.4< Cv <1.6 160 (1103) 120 (828) (15) (0.34< Kvs <1.37) 1/2 2.5< Cv <4 85 (586) 65 (448) (15) (2.15< Kvs <3.44) 3/4 (20) 70 (482) 55 (379) 1 (25) Table 8. Maximum Available Close-off Pressures for Pneumatic Actuators. Action Valve Size Inches (mm) 2-inch Actuator @ 0 psi (0 kPa) (with 10 to 15 psi Valve) NC 1/2 0.4< Cv <1.6 95 (655) (15) (0.34< Kvs <1.37) 1/2 2.5< Cv <4 50 (345) (15) (2.15< Kvs <3.44) 3/4 (20 40 (276) 1 (25) @ 20 psi (103 kPa) (with 3 to 8 psi Valve) NO 1/2 0.4< Cv <1.6 95 (655) (15) (0.34< Kvs <1.37) 1/2 2.5< Cv <4 45 (310) (15) (2.15< Kvs <3.44) 3/4 (20) 35 (241) 1 (25) Technical Instructions Powermite 599 MT Series Terminal Unit 2-way Valves Document Number 155-196P25 June 17, 2020 Page 8 Siemens Industry, Inc. Figure 2. Close-off Pressures. Operation Figure 3 shows the normally open valve in the open or full flow position and the normally closed valve in the closed or zero flow position. The valve spring provides the necessary force to hold the stem in the raised or normal position. In the event of power failure, a spring return actuator returns the valve to its normal position. Non-spring return actuators will hold the last commanded position. See the Technical Instructions of the various actuators for additional information. Figure 3. Sizing The sizing of a valve is important for correct system operation. An undersized valve will not have sufficient capacity at maximum load. An oversized valve can initiate cycling, and the seat and throttling plug can be damaged because of the restricted opening. Correct sizing of the control valve for actual expected conditions is considered essential for good control. See Tables 3 through 6 for valve capacities. Powermite 599 MT Series Terminal Unit 2-way Valves Technical Instructions Document Number 155-196P25 June 17, 2020 Siemens Industry, Inc. Page 9 Sizing, continued The following variables must be determined: • The medium to be controlled: water, etc. • The maximum inlet temperature and pressure of the medium at the valve. • The pressure differential that will exist across the valve under maximum load demand. • The maximum capacity the valve must deliver. • The maximum line pressure differential the valve actuator must close against. See Application Bulletin (AB)-1 Control Valve Selection and Sizing (155-285) for further recommendations. Mounting and Installation Install the valve so that the flow follows the direction of the arrow indicated on the valve body. 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 so that the actuator is below horizontal or upside-down. Allow sufficient space for servicing the valve and actuator. See Table 11 for valve body dimensions. See Figure 4 and Table 10 for dimensions of the service envelope recommended around the actuator. NOTE: Instructions for field mounting an actuator, wiring diagrams, and start-up are covered in the Technical Instructions and Installation Instructions for each actuator. Service Replace the valve if inoperable. Disposal Do not dispose of the valve as household waste. • Special handling of individual components may be mandated by law or make ecological sense. • Observe all local and currently applicable laws and regulations. The actuators are considered electrical and electronic equipment for disposal in terms of the applicable European Directive and may not be disposed of as domestic garbage. • Dispose of the actuators through channels provided for this purpose. • Comply with all local and currently applicable laws and regulations. Next >