229 | Honeywell MS4103 guide

	ITEM	MANUFACTURER	REPLACEMENT	TYPE OF	REMARKS
	NUMBER		ITEM	REPLACEMENT
	2568-034	ROBERTSHAW	V5011F1089 with	FUNCTIONAL
			MP953C1000
	2568-035	ROBERTSHAW	V5011F1089 with	FUNCTIONAL
			MP953E1327
			V5011F1097 with		Internal normally
	2568-038	ROBERTSHAW	V5011F1097 with	FUNCTIONAL	close only, 3 psi
			MP953C1018		positioner span
					positioner span
			V5011F1097 with		Internal normally
	2568-039	ROBERTSHAW	V5011F1097 with	FUNCTIONAL	close only, 5 psi
			MP953C1000		positioner span
					positioner span
			V5011F1097 with		Internal normally
	2568-040	ROBERTSHAW	V5011F1097 with	FUNCTIONAL	close only, 10 psi
			MP953E1327		positioner span
					positioner span
	657-8225	POWERS/LANDIS	V5013F1020 with	FUNCTIONAL
		& GYR	MP953C1018
	658-0026	POWERS/LANDIS	V5013F1004 with	FUNCTIONAL	5 psi positioner
		& GYR	MP953C1000		span
	658-0028	POWERS/LANDIS	V5013F1020 with	FUNCTIONAL	10 psi positioner
		& GYR	MP953C1000		span
		JOHNSON	MP909D1201 or
	D101	JOHNSON	MP909D1219 or	FUNCTIONAL
	D101	CONTROLS	MP909D1219 or	FUNCTIONAL
		CONTROLS	MP909D1227
			MP909D1227
	D103	JOHNSON	MP909E1083 or	FUNCTIONAL
	D103	CONTROLS	MP909E1174	FUNCTIONAL
		CONTROLS	MP909E1174
		JOHNSON	MP909D1201 or
	D251	JOHNSON	MP909D1219 or	FUNCTIONAL	External Only
	D251	CONTROLS	MP909D1219 or	FUNCTIONAL	External Only
		CONTROLS	MP909D1227
			MP909D1227
			MP918B1030 or
	D251(4)	JOHNSON	MP918B1113 or	FUNCTIONAL
	D251(4)	CONTROLS	MP918B1139 or	FUNCTIONAL
		CONTROLS	MP918B1139 or
			MP918B1147
	D251(6)	JOHNSON	MP920B1002	FUNCTIONAL	External Only
	D251(6)	CONTROLS	MP920B1002	FUNCTIONAL	External Only
		CONTROLS
	D3031-3	JOHNSON	MP913A1052	FUNCTIONAL	Internal normally
	D3031-3	CONTROLS	MP913A1052	FUNCTIONAL	closed only
		CONTROLS			closed only
	D3070-1	JOHNSON	MP516A1087	FUNCTIONAL
	D3070-1	CONTROLS	MP516A1087	FUNCTIONAL
		CONTROLS
	D3073-2	JOHNSON	MP909E1174	FUNCTIONAL	Internal normally
	D3073-2	CONTROLS	MP909E1174	FUNCTIONAL	closed only
		CONTROLS			closed only
	D3073-3	JOHNSON	MP909E1034	FUNCTIONAL
	D3073-3	CONTROLS	MP909E1034	FUNCTIONAL
		CONTROLS
	D3073-7	JOHNSON	MP909E1083	FUNCTIONAL
	D3073-7	CONTROLS	MP909E1083	FUNCTIONAL
		CONTROLS
	D3153-2	JOHNSON	MP918B1089	FUNCTIONAL
	D3153-2	CONTROLS	MP918B1089	FUNCTIONAL
		CONTROLS
	D3153-3	JOHNSON	MP918B1048	FUNCTIONAL
	D3153-3	CONTROLS	MP918B1048	FUNCTIONAL
		CONTROLS
			MP920B1002
	M556-14	ROBERTSHAW	with 14004345-	FUNCTIONAL
			001
	M556-51	ROBERTSHAW	MP920B1002	FUNCTIONAL
	M572-2311	ROBERTSHAW	MP909A1041	FUNCTIONAL
	M572-3308	ROBERTSHAW	MP909D1227	FUNCTIONAL
	M572-5311	ROBERTSHAW	MP909D1219	FUNCTIONAL
	M572-6308	ROBERTSHAW	MP913A1660	FUNCTIONAL
	M572-8311	ROBERTSHAW	MP909D1201	FUNCTIONAL
	M573-2108	ROBERTSHAW	MP909E1018	FUNCTIONAL
	M573-2111	ROBERTSHAW	MP909E1018	FUNCTIONAL
	M573-3108	ROBERTSHAW	MP909E1034	FUNCTIONAL
	M573-5111	ROBERTSHAW	MP909E1174	FUNCTIONAL	External Only
					For unitary
	M573-8111	ROBERTSHAW	MP909E1083	FUNCTIONAL	applications,
	M573-8111	ROBERTSHAW	MP909E1083	FUNCTIONAL	consult technical
					consult technical
					support.
	M574-1211	ROBERTSHAW	MP909H1331 or	FUNCTIONAL	External Only
	M574-1211	ROBERTSHAW	MP918A1024	FUNCTIONAL	External Only
			MP918A1024
					For unitary
	M583-0520	ROBERTSHAW	MP516A1087	FUNCTIONAL	applications,
	M583-0520	ROBERTSHAW	MP516A1087	FUNCTIONAL	consult technical
					consult technical
					support.
	M584	ROBERTSHAW	MP516A1087	FUNCTIONAL
	MK3101	BARBER COLMAN	MP909E1083 or	FUNCTIONAL
			MP918B1063
	MK3111	BARBER COLMAN	MP909E1034 or	FUNCTIONAL	Internal normally
	MK3111	BARBER COLMAN	MP918B1048	FUNCTIONAL	closed only
	MK3121	BARBER COLMAN	MP909E1174 or	FUNCTIONAL	Internal normally
	MK3121	BARBER COLMAN	MP918B1097	FUNCTIONAL	closed only
	MK3141	BARBER COLMAN	MP909E1018 or	FUNCTIONAL
	MK3141	BARBER COLMAN	MP918B1006	FUNCTIONAL
	MK3201	BARBER COLMAN	MP909E1083 or	FUNCTIONAL
	MK3201	BARBER COLMAN	MP918B1063	FUNCTIONAL

Pneumatics Cross Reference

	ITEM	MANUFACTURER	REPLACEMENT	TYPE OF	REMARKS
	NUMBER		ITEM	REPLACEMENT
	MK3211	BARBER COLMAN	MP909E1034 or	FUNCTIONAL	External Only
	MK3211	BARBER COLMAN	MP918B1048	FUNCTIONAL	External Only
	MK3221	BARBER COLMAN	MP909E1174 or	FUNCTIONAL	External Only
	MK3221	BARBER COLMAN	MP918B1063	FUNCTIONAL	External Only
					For unitary
	MK4-3101	BARBER COLMAN	MP909H1331	FUNCTIONAL	applications,
	MK4-3101	BARBER COLMAN	MP909H1331	FUNCTIONAL	consult technical
					consult technical
					support.
	MK4-3111	BARBER COLMAN	MP909H1331	FUNCTIONAL
	MK4-3121	BARBER COLMAN	MP909H1331	FUNCTIONAL	Internal normally
	MK4-3121	BARBER COLMAN	MP909H1331	FUNCTIONAL	closed only
					closed only
	MK4-3141	BARBER COLMAN	MP909H1331	FUNCTIONAL	Internal normally
	MK4-3141	BARBER COLMAN	MP909H1331	FUNCTIONAL	closed only
					closed only
	MK4-3801	BARBER COLMAN	MP909H1331	FUNCTIONAL
	MK4-3811	BARBER COLMAN	MP909H1331	FUNCTIONAL
					For unitary
	MK4-3821	BARBER COLMAN	MP909H1331	FUNCTIONAL	applications,
	MK4-3821	BARBER COLMAN	MP909H1331	FUNCTIONAL	consult technical
					consult technical
					support.
	MK4-3841	BARBER COLMAN	MP909H1331	FUNCTIONAL
	MK4401	BARBER COLMAN	MP516A1095	FUNCTIONAL
	MK4411	BARBER COLMAN	MP516A1103	FUNCTIONAL
	MK4421	BARBER COLMAN	MP909E1158	FUNCTIONAL
	MK4451	BARBER COLMAN	MP516A1087	FUNCTIONAL
	MK4461	BARBER COLMAN	MP516A1087	FUNCTIONAL
	MK4-7101	BARBER COLMAN	MP918A1024	FUNCTIONAL
	MK4-7121	BARBER COLMAN	MP918A1024	FUNCTIONAL
	MK7101	BARBER COLMAN	MP918B1063	FUNCTIONAL
	MK7121	BARBER COLMAN	MP918B1089	FUNCTIONAL
					External Only,
	MP904A1145	HONEYWELL	MP918A1008	FUNCTIONAL	3 psi positioner
					span
					External Only,
	MP904A1145	HONEYWELL	MP918A1016	FUNCTIONAL	5 psi positioner
					span
					External Only,
	MP904A1145	HONEYWELL	MP918A1024	FUNCTIONAL	10 psi positioner
					span
					Internal normally
	MP904A1145	HONEYWELL	MP918A1032	FUNCTIONAL	close only, 3 psi
					positioner span
					Internal normally
	MP904A1145	HONEYWELL	MP918A1040	FUNCTIONAL	close only, 5 psi
					positioner span
					Internal normally
	MP904A1145	HONEYWELL	MP918A1057	FUNCTIONAL	close only, 10 psi
					positioner span
	MP904A1152	HONEYWELL	MP917A1065	FUNCTIONAL	3 psi positioner
	MP904A1152	HONEYWELL	MP917A1065	FUNCTIONAL	span
					span
	MP904A1152	HONEYWELL	MP918A1073	FUNCTIONAL	5 psi positioner
	MP904A1152	HONEYWELL	MP918A1073	FUNCTIONAL	span
					span
	MP904A1152	HONEYWELL	MP918A1081	FUNCTIONAL	10 psi positioner
	MP904A1152	HONEYWELL	MP918A1081	FUNCTIONAL	span
					span
	MP904A1186	HONEYWELL	MP918A1099	FUNCTIONAL
	MP904B1028	HONEYWELL	MP918B1006	FUNCTIONAL	External Only
	MP904B1028	HONEYWELL	MP918B1014	FUNCTIONAL	Internal normally
	MP904B1028	HONEYWELL	MP918B1014	FUNCTIONAL	closed only
					closed only
	MP904B1093	HONEYWELL	MP918B1063	FUNCTIONAL	External Only
	MP904B1093	HONEYWELL	MP918B1071	FUNCTIONAL	Internal normally
	MP904B1093	HONEYWELL	MP918B1071	FUNCTIONAL	closed only
					closed only
	MP904B1101	HONEYWELL	MP918B1097	FUNCTIONAL	Internal normally
	MP904B1101	HONEYWELL	MP918B1097	FUNCTIONAL	closed only
					closed only
	MP904B1101	HONEYWELL	MP918B1089	FUNCTIONAL	External Only
	MP904B1119	HONEYWELL	MP918B1014	FUNCTIONAL
	MP904B1127	HONEYWELL	MP918B1022	FUNCTIONAL
	MP904B1135	HONEYWELL	MP918B1105	FUNCTIONAL
	MP904B1150	HONEYWELL	MP918B1030	FUNCTIONAL
	MP904C1026	HONEYWELL	MP918A1024	FUNCTIONAL
	MP904C1328	HONEYWELL	MP918B1006	FUNCTIONAL
	MP904C1377	HONEYWELL	MP918B1030	FUNCTIONAL
			MP909D1227
	MP909A1041	MIRCOSWITCH	with 14002850-	FUNCTIONAL
	MP909A1041	MIRCOSWITCH	001 with	FUNCTIONAL
			001 with
			312867H
	MP909A1132	HONEYWELL	MP909A1652	FUNCTIONAL
			MP909D1227
	MP909A1637	MIRCOSWITCH	with 14002850-	FUNCTIONAL
	MP909A1637	MIRCOSWITCH	001 with	FUNCTIONAL
			001 with
			312867H

ec Referen Cross

229

Image 229

Honeywell MS4103 manual 229

Contents

Dampers, Actuators and Valves Butterfly & Flanged Control Ball Valve Ordering How to use this guide Fire and Smoke Resilient Seat Butterfly Valves DampersControl Valve Applications MS8105 Accessories Section Page Fire and Smoke Determine Damper Actuator Locations Damper And Actuator SizingDetermining Damper Actuator Torque Requirements Approximate industry standard damper lb-in. per sq ft value Damper Sizing Standard Rectangular Dampers Standard Round Dampers Direct coupled actuators quick selection guide Direct Coupled Actuators Order Specification SpecificationOrder Approximate VA Rating Lb-in 3.4 Nm Fire & Smoke ActuatorsLb-in Lb-in 20 Nm Valve Selection Page Control Valve Applications Way Control Valve Selection Criteria Stem down to close Stem up to close Globe Control Ball Butterfly 230 psi Port specificationAB porting AB-B porting Control Valve Selection Criteria Maximum static water pressure 300 psig Fan Coil and Zone ValvesWay Actuator O.S. Number Maximum Timing Leadwire Length, Way Way Mixing/ Diverting Cartridge Cage Valves For all working parts Flush-and-fill manual lever on all actuators Cartridge Globe Valves Floating 02-10 Vdc Fail Safe PneumaticPipe Way NPT Nema Control Ball Valves ½ Vbn2dn3P0d Vbn2dn3s0d Vbn2dn3P0X Vbn2dn3s0X Fail Safe 02-10 Vdc MA external 500 Ohm Resistor Floating Way NPT Nema 3RClose-off Vbn2ab3sRa Vbn2dn3sRd Control Ball Valves ½- 2½ Actuator Features Non-fail Safe Fail SafeValve Size Inches Control Ball Valves ½- 2½ Flanged Control Ball Valves 4 Actuator Features Non-fail Safe Fail Safe Valve OnlyWay Flanged Nema 2+3R To 5 80% of Cv on B-port With Dedicated Valve Actuators NPT Globe Valves ½Valve Valve OS Close-off Pressure, psid Number 240 psi Ansi body classWay water valves 15 psi Maximum steam pressure Way steam valves, 337F 100 psi Stem travel With Direct Coupled Actuators and Valve Linkage Actuator Features Non-Fail SafeValve Valve OS V5013N1071 V5013N1089 V5013N1097 Valve OS Close-off Pressure, psid Spdt Built Valve Max Static LVaevSelection Max Static Max Steam Flow Flanged Globe Valves 2½250 Psi @ 130 F Psig / 353 F Linear 125 Actuator Features Actuator Features Fail Safe Characteristic Action With Tandem Direct Coupled Actuators and Valve Linkage Threaded and Flanged Globe Valves 2Body material Bronze V5011/13N, Cast iron Cast Iron VGF3 Q5022A1001 Required 100 125 V5013B1003 175Diverting Actuator O.S. Number Power Supply LVaevSelection Standard Psi @ 130 F Equal % Flanged Globe Valves 4 Close-off Pressure, psid Standard Max Static Max SteamFlow Valve Valve OS Close-off Pressure, psid Flanged Cage Valves 2½ Flow characteristic Modified linearAction With Pneumatic Actuators Chart HRolling diaphragm for long life Low hysteresis To the valve Chart C Chart aChart B Chart G 10psi span Close-off Pressure See Charts OnWith Positive Positioner Inch Direct Acting Pneumatic Actuator Chart H Chart J Chart K Max Steam Flow Valve SteamConstant Total Stem up closes B-AB V5013C1019 Chart S Stem PSI kPa Way Water & Steam Valves Way Water Valves See Charts OnClose-off Pressure Chart W ChartChart T Way Electrically-Actuated Control Resilient Seat Butterfly ValvesOpen Normally Field Built Add-On Way Normally Closed Field-Configurable Normally OpenLever Valve PortingCommon Use a pair Valve O.S. Number Diverting VFF6 A-AB-B porting, full-cutVFF6 may be piped for mixing Control with water exiting port AB Resilient Seat Butterfly Valves Way Pneumatically-Actuated Control Psi Actuator OpenSpring Positioner Standard Psi spring return Cv @ Mixing Port1081 3316 567 1850 Page Pneumatic Damper Actuator MP909D MP909E, H MP913 MP918A, B Temperature Rating Rectangular Volume Control DampersD1 Series Performance Data D1 Pressure and Velocity Limits Performance Data D2, D3 Pressure and Velocity Limits D2 and D3 Series D690 Round Volume Control DampersType of Blade DM7600 S03 Series MS4103 MS7403 MS7503 MS8103 Spring Return Direct Coupled ActuatorRated Torque S05 Series MS4105 MS7105 MS7405 MS7505 MS8105 S10 Series MS4110 MS7510 MS8110 S20 Series MS4120 MS7520 MS8120 NEMA1 ML4125 ML8125 ML4135 ML8135 ML6161 ML7161 Non-Spring Return Direct Coupled Actuator ML6174 ML7174 N05 Series MN6105 MN7505 N10 Series MN6110 MN7510 NEMA2 IP54 N20 Series MN6120 MN7220 N34 Series MN6134 MN7234 ML4115 ML8115 Fire And Smoke ActuatorSupply Voltage Materials Integral junction box with three MS4209F MS4309F MS4709F MS4809F MS8209F MS8309F MS4120F MS4620F MS8120F Pneumatic Damper Actuator Temperature RangeMP909D DIA 13 5-11/16 145 1-3/16 Actuator with Fixed External Mounting Bracket MP909E,HActuator with Internal N.C. Trunnion Mounting Bracket Actuator with External Trunnion Mounting Bracket MP913 Actuator with Internal N.O. Trunnion Mounting Bracket MP918A,B100 101 MP920 MP953C,D Pneumatic Valve Actuator102 103 MP953E,F 104 MP9584 DIA IN. MM In. NPT M4185 M8185 Modutrol IV Motor105 Shaft Shape 106 M6184 M6194 M6285 for slaving applications 108 M6284 M6294 for slaving applications 109 M6274 M6284 M6285 M6294 Motors with Linear 10K Feedback 110 M7164 111 M7274 M7284 M7285 M7286 M7294 112 M9164 M9174 M9182 M9184 M9194 113 M9175 M9185 M9186 Q7130 Q7230 Q7330 VU443, VU444 VU843 VU844 Unitary Valve Actuator115 11/16 VC Series Two-position Actuators 117 VC Series Proportional Actuators VC Series Fail Safe Proportional Actuators Visual position indication red pin M6410 M7410119 Visual position indication red disk M6435 M7435120 ML6420 ML7420 Direct Coupled Valve Actuator121 122 ML6421 ML7421 ML6425 ML7425 Stem down on power failure or123 ML6984 125 ML7984 VU52 VU53 Unitary Valve126 Valve Type 127 VU54 Stem Travel Vcza Vczb 129 Vczm Vczn 130 V5852 131 V5853 132 Control Ball Valve 133 VBN3 134 VBF2 135 VBF3 V5011F,G NPT Globe Valve136 137 V5011N 138 V5013N V5051A Flanged Cage Valve139 V5011A,B Flanged Globe Valve140 141 V5013B,C Actuators with Q5020 valve MN/MS Series Direct CoupledLinkage 142 143 VGF2 Pressure BalancedValve Action 144 VGF3 145 VFF1 146 VFF2 147 VFF3 148 VFF6 Q605 Damper Linkage149 Q5001 Valve Linkage150 Q5020 Globe Valve Linkage151 Q5022 153 Wiring for line-voltage two-position control Actuator Wiring DiagramsWiring for 02-10 VDC proportioning controllers Wiring for Spdt on/off Control Direct Coupled Actuators Spring Return Models Wiring for 3 position Economizer controllersOverride to full close 155 Wiring for Floating Control Floating mode setting Wiring for On/Off Control156 Override to full closed Modulating mode setting Override to full open Modulating mode settingTerminal Block Details 157 Typical 120 Vac Wiring Typical 24 Vac wiring Typical 230 Vac Wiring158 ML7161 used with 4-20 mA control ML6174 and ML7174ML7174 used with 4-20 mA control 159 Wiring for Auxiliary Switches Wiring for Floating Control Wiring for Voltage Control160 MN6105, MN6110 Wiring for Modulating Control Used for On/Off Control Wiring for Floating Control161 Wiring for 120V Control Wiring for 24V ControlMS4120F, MS4620F, and MS8120F 162 Foot Mounted Motors M4185 and M8185M6184 and M6194 M6284, M6285, and M6294 for slaving applications Typical wiring for M7685 motors Typical wiring for Series 70 motorsM7164, M7284, M7285, M7286, and M7294 M7685 Wiring for Potentiometer Control Typical wiring for Series 90 motors165 Actuators with Butterfly Valves VFF2, VFF3, and VFF6 Typical Non-Spring Return 120 Vac Floating control wiring166 Typical Spring Return 2-Position, 24 Vac wiring Typical Non-Spring Return Modulating control wiringActuators with Butterfly Valves 167 168 169 Threaded Globe Valves Guide Specifications170 171 Pressure-Balanced Flanged Globe Valves 172 Flanged Globe Valves 173 Threaded Control Ball Valves and Actuators 174 Control Ball Valves and Actuators 175 Flanged Butterfly Valves and Actuators 176 Fan Coil Zone Valves and Dedicated Actuators 177 Cartridge Cage Valves and Dedicated Actuators 178 Cartridge Globe Valves and Dedicated Actuators 179 Electric Large Linear Globe Valve Actuators 180 Direct-Coupled Electronic Globe Valve Actuators 181 Direct-Coupled Rotary Actuator Globe Valve Linkage 182 Tandem Direct-Coupled Rotary Actuator Globe Valve Linkage 183 Footmount Globe Valve Actuators 184 185 Ball Joints, Push Rod Accessories Damper And Actuator AccessoriesControl, Positioning, Feedback Accessories 32003532-005 Mounting Accessories32006306-001 205649 Rotational Limiters, Position Indicators Crankarms Shaft Adaptor Accessories Miscellaneous Accessories Enclosure AccessoriesQ7002 Interface Modules Accessories for Obsolete Actuators Valve Actuator Accessories Valve AccessoriesVU Series Fan Coil Actuator Accessories Pneumatic Damper Actuator Parts and Accessories Pneumatic Damper Accessories 14004264-002 14004264-00114004324-001 14004350-001 314503 314440A315321 315321G Pneumatic Valve Actuator Parts and Accessories Pneumatic Valve Accessories 311852 311851/0062311855 311863 Foot Mounted Motor Accessories Foot Mounted Motor Accessories203709D2 220738A 4074ERU 221508A27617DM ES-650-117 Damper and Valve Linkage Accessories Damper And Valve Accessories Way Valve + Non-Spring Return Modulating Actuator Way Valve + Non-Spring Return Floating ActuatorWay Valve + Spring Return, 2-Position Actuator Way Valve + Spring Return Floating Actuator Direct Coupled Actuator Competitive Cross Reference202 203 204 Sec Actuator Lb-in Signala ±20% 25-85 205 206 Switches Sec Actuator Lb-in Signala PowerJohnson Torque Control Timing Honeywell 207 Switches Sec Actuator Lb-in Signala 208 209 210 211 212 Lb-in SignalaInvensys Torque Control Timing Honeywell 213 1kOhm 214 Lb-in Signala Power Switches215 Siemens Torque Control Timing Honeywell 34 Nm Floating 216+ SW2 34 Nm Floating + SW2 34 Nm 217200976C 218 219 Way Valve Control Ball Valve Cross Reference220 221 Way Valve + Non-Spring Return Floating Actuator 222 Way Valve + Non-Spring Return Modulating Actuator 223 Way Valve + Spring Return, 2-Position Actuator 224 Way Valve + Spring Return Floating Actuator 225 Way Valve + Spring Return Modulating Actuator 226 Globe Valve Cross Reference 227 228 Pneumatics Cross Reference 229 230 231 Modutrol IV Motor Cross Reference 232 233 234 235 236 237 238 239 240 241 242 243 Introduction Appendix a Valve Selection and SizingDefinitions 0000240 C Within the temperature range865 C Pascals Ansi Butterfly Valve Ball Valve Iron or Steel Component Corrosive Substance Corrosion Color Valve Material and Media 249 Valve Selection 250 Two-Way Valve Application Linear vs. Nonlinear System Control Flow vs. Stem Travel Characteristic of a Quick Opening Valve 252 30% open Gpm 10% increase 40% open 60% increase 50% open Mixing valve application has a maximum pressure Valve Sizing253 Pressure Drop Correction for Propylene Glycol Solutions Pressure Drop Correction for Ethylene Glycol Solutions Conditions of temperature = the specific volume of air at standardFor hot water coil valves Where 256 Substituting 257 Effect of Pressure Drop in Hot Water Valve Sizing Pressure drop in psi Scaling constantSuperheat in degrees F For sizing steam coil valves At Room Termperature At 65 F Inlet Air Temperature When sizing steam jet humidifier valvesSimplifying Fices use Negative value if a vacuum return PressurePsig Pressure in return is atmospheric In. Hg = 0.49 psi and 1 psi = 2.04 in. Hg = 80% x Pm Pr261 Properties of Saturated Steam Boiling Point or Volume For valveMaximum Specific Allowable Inches 263 Appendix B Nema Standard Classification Code for Enclosures Shielded Wiring 265 266 Warranty Policy Automation and Control Solutions