VN Two-Way Threaded Globe Valve FEATURES PRODUCT DATA Red brass body with NPT-threaded end connections. Low seat leakage rate (. percent C v ). : rangeability per VDI/VDE 7. Spring-loaded, self-adjusting packing. Accurate positioning to ensure state of the art temperature control. Directly coupled electric and pneumatic actuators for easy mounting. Sizes range from / inch to inches. Valve designs provide equal percentage flow characteristic for water and linear flow characteristic for steam. Stainless steel stem and metal-to-metal seats. APPLICATION Repack and rebuild kits for field servicing. The VN is a two-way threaded globe valve that controls steam, water, and glycol solutions (up to percent concentration) in heating or cooling HVAC applications. The valve is used in two-position and modulating control systems. The valve is not suitable for combustible gas service. Contents Application... Features... Specifications... Ordering Information... Installation... Checkout... U.S. Registered Trademark Copyright 998 Honeywell Inc. All Rights Reserved 6-48
VN TWO-WAY THREADED GLOBE VALVE SPECIFICATIONS IMPORTANT The specifications given in this publication do not include normal manufacturing tolerances. Therefore, an individual unit may not exactly match the listed specifications. Also, this product is tested and calibrated under closely controlled conditions and some minor differences in performance can be expected if those conditions are changed. Models: VN Valve: Two-way threaded globe valve for steam, water, or glycol. NPT-threaded pipe connections. Throttling plug provides equal percentage characteristic of flow for water (VNxxx, VNxxx), linear characteristic of flow for steam (VNxxx). VNxxx and VNxxx are direct acting (stem down to close) VNxxx is reverse acting (stem up to close). Valve Sizes and Flow Capacities: See Table. Table. Valve size and flow capacities. Valve Body Pipe Size (in.) Flow Capacity (C v ) /.7 /.6 /.8 /.9 / 4.7 /4 7..7 -/4 8.7 -/ 9. 46.8 Pipe Connections: Female NPT-threaded connections. Seat: Stainless steel, replaceable (except VNxxx /4 in. to - /4 in. which have integral brass seat). ANSI Body Class: psi. Stem: Stainless steel. Plug: Brass on VNxxx and VNxxx for water; stainless steel on VNxxx for steam. Stroke: /4 in. ( mm). Approximate Leakage Rate:. percent C v. Pattern: -way, straight-through. Body Material: Red brass. Packing: Spring-loaded, carbon fiber reinforced PTFE V-rings. Pressure-Temperature Ratings: Water: 6 F to 48 F, 7 psi. 48 F to 4 F, psi. Steam: psi at 4 F. Valve Flow Characteristics: Water: equal percentage flow characteristic (VNxxx, VNxxx). Steam: linear flow characteristic (VNxxx). See Fig.. Close-Off Pressure Ratings: See Fig. and Tables and. ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE wholesaler or distributor, refer to the TRADELINE Catalog or price sheets for complete ordering number. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:. Your local Home and Building Control Sales Office (check white pages of your phone directory).. Home and Building Control Customer Logistics Honeywell Inc., 88 Douglas Drive North Minneapolis, Minnesota 4-486 (6) 9- In Canada Honeywell Limited/Honeywell Limitée, Gordon Baker Road, North York, Ontario MH N7. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. 6-48
VN TWO-WAY THREADED GLOBE VALVE PERCENTAGE STEM TRAVEL 9 8 7 6 4 FLOW CHARACTERISTICS EQUAL PERCENTAGE LINEAR 4 6 7 8 9 PERCENTAGE FLOW M97 Fig.. Equal percentage and linear flow characteristics. AIR PRESSURE IN ACTUATOR PSI (kpa) ACTUATOR SPRING RANGE (kpa) -7 8 () 9 (6) (69) (6) (8) 4 (97) 6 7 (7) 8 (4) 4- (8) 4 (97) 6 7 (7) 8 (4) 9 () (8) 8-4 (97) 6 7 (7) 8 (4) 9 () (8) C V 46.8 VN / THROUGH IN., DIRECT ACTING, THREADED BODIES WITH IN. DIA. PNEUMATIC ACTUATOR (NORMALLY OPEN) C V 9. 9 () (8) 4 6 8 4 6 (8) (76) (44) () (699) (87) (96) 8 (4) (79)(7) VNXXX VNXXX CLOSE OFF PRESSURE RATINGS PSI (kpa) USE 4- PSI SPRING FOR POSITIONER MODEL (MP9E) C V 8.7 C V.7 TO.9 (9) Fig.. Close-off pressures at various control air pressures for VN Valves and MP9 Pneumatic Actuators. C V.7 C V 7. C V 4.7 M649 6-48
VN TWO-WAY THREADED GLOBE VALVE AIR PRESSURE IN ACTUATOR PSI (kpa) ACTUATOR SPRING RANGE (kpa) -7 7 (48) 8 () 9 (6) (69) (6) (8) 4 (97) 6 7 (7) 8 (4) 9 () (8) 4- (7) (8) 4 (97) 6 7 (7) 8 (4) 9 () (8) 8- (8) 4 (97) 6 7 (7) 8 (4) 9 () (8) VN / THROUGH IN., DIRECT ACTING, THREADED BODIES WITH 8 IN. DIA. PNEUMATIC ACTUATOR (NORMALLY OPEN) C V 46.8 C V.7 TO.9 4 6 8 4 6 (8) (76) (44) () (699) (87) (96) 8 (4) (79)(7) VNXXX VNXXX CLOSE OFF PRESSURE RATINGS PSI (kpa) USE 4- PSI SPRING FOR POSITIONER MODEL (MP9E) M6 (9) Fig.. Close-off pressures at various control air pressures for VN Valves and MP9 Pneumatic Actuators (continued). C V 9. C V 8.7 C V 4.7 C V 7. C V.7 6-48 4
VN TWO-WAY THREADED GLOBE VALVE -7 (-) SPRING RANGE PSI (kpa) 4- (-7) 4 8- (-9) 8 () VN / THROUGH IN. DIRECT ACTING THREADED BODIES WITH 7-/8 REVERSE ACTING PNEUMATIC ACTUATOR (NORMALLY CLOSED) () 7 () AIR PRESSURE IN ACTUATOR PSI (kpa) () 6 (4) () 4 C V.7 TO.9 C V 4.7 C V 7. C V.7 C V 46.8 C V 9. C V 8.7 () (7) (4) () 4 (7) (4) 6 () 7 (48) 8 () 9 (6) (69) (76) CLOSEOFF PRESSURE RATINGS PSI (kpa) USE 8- PSI (-9 KPA) RANGE FOR DETERMINING CLOSEOFF OF VALVES USED WITH MP9F ACTUATORS. (8) (89) 4 (96) 6 () () M6 SPRING RANGE PSI (kpa) AIR PRESSURE IN ACTUATOR PSI (kpa) 4- (-7) 4 () 8- (-8) 8 () 7 () 6 (4) () 4 () () VN / THROUGH -/4 IN. REVERSE ACTING THREADED BODIES WITH IN. DIRECT ACTING PNEUMATIC ACTUATOR (NORMALLY CLOSED) (7) () (4) (7) () Fig.. Close-off pressures at various control air pressures for VN Valves and MP9 Pneumatic Actuators (continued). C V 8.7 (4) 4 (7) 4 CLOSEOFF PRESSURE RATINGS PSI (kpa) (4) C V.7 (8) USE 4- PSI (-7 kpa) RANGE FOR DETERMINING CLOSEOFF OF VALVES USED WITH MP9E ACTUATORS. C V.7 TO.9 C V 7. 6 (4) C V 4.7 6 (4) M6 7 (48) 6-48
VN TWO-WAY THREADED GLOBE VALVE SPRING RANGE PSI (kpa) AIR PRESSURE IN ACTUATOR PSI (kpa) 4- (-7) 4 () 8- (-8) 8 () 7 () 6 (4) () 4 () () VN / THROUGH -/4 IN. REVERSE ACTING THREADED BODIES WITH 8 IN. DIRECT ACTING PNEUMATIC ACTUATOR (NORMALLY CLOSED) (7) () (4) (7) () (4) 4 (7) 4 CLOSEOFF PRESSURE RATINGS PSI (kpa) (4) (8) USE 4- PSI (-7 kpa) RANGE FOR DETERMINING CLOSEOFF OF VALVES USED WITH MP9E ACTUATORS. C V.7 TO.9 6 (4) C V 7. C V.7 C V 8.7 6 (4) M6 7 (48) C V 4.7-7 (-) SPRING RANGE PSI (kpa) 4- (-7) 8- (-9) VN / THROUGH -/4 IN. REVERSE ACTING THREADED BODIES WITH 7 IN. REVERSE ACTING PNEUMATIC ACTUATOR (NORMALLY OPEN) AIR PRESSURE IN ACTUATOR PSI (kpa) 7 () 8 () 9 (6) (7) (7) (8) 4 (9) (7) (8) 4 (9) () 6 7 8 () (8) 4 (9) () 6 7 8 () () (7) () (4) (7) Fig.. Close-off pressures at various control air pressures for VN Valves and MP9 Pneumatic Actuators (continued). () (4) 4 (7) 4 CLOSEOFF PRESSURE RATINGS PSI (kpa) (4) USE 8- PSI (-9 kpa) RANGE FOR DETERMINING CLOSEOFF OF VALVES USED WITH MP9F ACTUATORS. C V 7. (8) C V.7 TO.9 C V 8.7 6 (4) C V 4.7 C V.7 6 (4) M64 7 (48) 6-48 6
VN TWO-WAY THREADED GLOBE VALVE Table. Close-off ratings (psid) for VNxxx and VNxxx Valves with electric/electronic actuators. Mod IV Motor with Q Linkages ML64A,B ML74A,B ML64A,B ML74A,B ML7984, ML6874 Valve Size (NPT) lb 6 lb 8 lb 4 lb lb 6 lb / in. (C v =.7 to.9) a a a a / in. (C v = 4.7) a a a a /4 a a a a 96 9 a 6 96 -/4 a 6 7 a 4 6 -/ 7 8 6 67 8 98 46 9 6 7 46 apressure is limited by fluid temperature. See valve temperature/pressure ratings. Table. Close off ratings (psid) for VNxxx Valves with electric/electronic actuators. Mod IV Motor with Q Linkages ML64A,B ML74A,B ML64A,B ML74A,B ML7984, ML6874 Valve Size (NPT) lb 6 lb 8lb 4 lb lb 6 lb / in. (C v =.7 to.9) a a a a / in. (C v = 4.7) a a a a /4 a a a a a a 9 a a a -/4 a a 7 a a a -/ a 8 6 a 67 8 98 46 9 a 7 46 apressure limited by fluid temperature; see valve temperature/pressure ratings. Maximum Pressure Differential for Quiet Water Service: psi differential. Rangeability: : per VDI/VDE 7. Dimensions: See Fig.. Motor and Linkage Selection: Electric Pneumatic ML64/ML64 MP9 (except " ML74/ML74 ML7984/ML6874 Mod IV w/q Replacement Parts: See Fig. 4. 7 6-48
VN TWO-WAY THREADED GLOBE VALVE Y, Y Y B A VALVE SIZE (IN) / /4 -/4 -/ A -/4 (8) -/4 (8) 4-/6 4-/6 (6) 4-/4 -/4 (4) B -9/6 (9.) -9/6 (9.) -9/6 (9.) -9/6 (9.) -/6 (46.) -/6 (46.) Y Y a STEM DOWN -/ (89) a Y WITH STEM EXTENSION FOR MP9A,C (8 IN. ONLY) Fig.. VN body dimensions in in. (mm). -/4 () M647 6-48 8
VN TWO-WAY THREADED GLOBE VALVE VN DIRECT ACTING TWO-WAY GLOBE VALVES VN REVERSE ACTING TWO-WAY GLOBE VALVES STEM BUTTON ASSEMBLY STEM BUTTON ASSEMBLY PACKING NUT PACKING NUT REPACK KIT REPACK KIT PACKING CARTRIDGE PACKING CARTRIDGE VALVE BODY VALVE BODY B A A AB B SEAT RING PLUG ASSEMBLY PLUG ASSEMBLY SEAT RING BOTTOM NUT LOWER SEAT BOTTOM NUT 9787 REPACK KIT (FOR VALVES WITH /8 INCH STEM) SHOWN. 9786 REPACK KIT (FOR VALVES WITH /4 INCH STEM) CONTAINS THREE PACKING WAFERS INSTEAD OF FOUR. INCLUDED IN REBUILD KIT. Fig. 4. VN replacement parts. M87 9 6-48
VN TWO-WAY THREADED GLOBE VALVE Valve OS No. NPT Size (in.) Flow Capacity (C v ) Stem Diameter (in.) Repack Kit (Part No.) Rebuild Kit (Part No.) Stem Button (Part No.) VN8 /.7 /4 9786 9746A 96 VN6.6 9747A VN4.8 9748A VN.9 9749A VN4 4.7 97A VN7 /4 7. 97A VN6.7 97A VN7 -/4 8.7 97A VN8 -/ 9. /8 9787 974A VN99 46.8 97A VN6 /.7 /4 9786 94A VN4.6 94A VN.8 944A VN.9 94A VN48 4.7 946A VN /4 7. 947A VN6.7 948A VN7 -/4 8.7 949A VN89 -/ 9. /8 9787 94A VN97 46.8 94A VN4 /.9 /4 9786 979A VN 4.7 976A VN /4 7. 976A VN8.7 976A VN46 -/4 8.7 976A INSTALLATION When Installing This Product. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.. Installer must be a trained, experienced service technician. 4. After installation is complete, check out product operation as provided in these instructions. IMPORTANT. Do not lift the valve by holding the stem.. Do not mount the valve with the stem pointed lower than horizontal.. Mount the valve with the flow arrow pointed in the direction of flow through the valve. 4. Mount the valve between aligned pipes. Mounting the valve on pipes that are not aligned causes leakage at the valve-to-pipe connection.. Ensure complete engagement on pipe to valve body threads. 6. Hold the valve body with a clamp or pipe wrench on the hexagonal fitting nearest the pipe to prevent damage to the valve body while mounting on the pipe. Refer to Fig.. 7. Be sure to allow enough room for installation and service. Clearance for valve installation is dependent on actuator size and the valve pipe size. 6-48
VN TWO-WAY THREADED GLOBE VALVE Location Select a location where the valve, linkage (if used), and actuator to be used are within the appropriate ambient pressure and temperature ratings. Leave sufficient clearance above the valve to accommodate actuator installation and allow room for servicing the valve body. (Completely install the valve body in the pipe line before installing the actuator and linkage.) PIPE SIZE (IN.) / /4 -/4 -/ EFFECTIVE LENGTH OF THREADS IN IN. (MM) / (.7) 9/6 (4.) /6 (7.) /6 (7.) /6 (7.) /4 (9.) When selecting a location for the valve, consider actuator mounting restrictions. Modutrol IV Motor chankshafts must be mounted horizontally. Mounting The preferred valve mounting position is with the stem vertical. For steam applications, mount with the stem at a 4 degree angle. Do not mount the valve with the stem more than 9 degrees from the vertical (pointing lower than horizontal). Scale and foreign material can collect, scoring the stem and causing packing leakage. Protect the stem from damage due to bending or scratching. Threading on threaded bodies conform to American Standard Taper Pipe Threads (NPT). Align the pipes squarely with the valve at each end connection. If the pipes are forced into the valve, the body can become twisted and improper seating can result. Apply pipe dope sparingly. Be careful to prevent pipe debris, such as chips and scale, from entering the piping because this material can lodge in the seat and prevent proper closing. Refer to the table in Fig. for valve pipe sizes and thread lengths. Fig. also shows two effective methods of holding the valve and pipe when attaching it. The valve will not function properly if it is twisted or squeezed during installation. Refer to installation information furnished with the linkage and motor when installing these controls. USE PROPERLY REAMED AND CLEANED PIPE AND MODERATE AMOUNT OF DOPE (LEAVE TWO THREADS BARE). USE VISE GRIPS WITH THE HEX END NEXT TO THE PIPE (DO NOT TWIST OR SQUEEZE VALVE BODY). USE VISE TO HOLD PIPE SECURELY TO PREVENT TURNING. USE PARALLEL-JAW WRENCH TO GRIP VALVE HEX FLATS NEXT TO PIPE. M76A Fig.. Installing valves with threaded connections. CHECKOUT Before installing linkage (if used) and actuator, make sure that valve stem operates freely. Impaired stem operation can indicate that the body was twisted or the stem was bent. Either of these conditions may require valve replacement. Check the valve body and connections for leaks. After installing linkage and actuator, check the operation according to the installation information furnished with these controls. Operate the system through one complete cycle to be sure the valve controls properly. Check the valve at regular intervals for leakage around the packing. The packing is spring-loaded and should seldom require attention. If leakage is discovered and inspection shows that the packing gland is screwed down tightly, the repack the valve. 6-48
VN TWO-WAY THREADED GLOBE VALVE Home and Building Control Honeywell Inc. Honeywell Plaza P.O. Box 4 Minneapolis MN 48-4 Honeywell Latin American Region 48 Sawgrass Corporate Parkway Suite Sunrise FL Home and Building Control Honeywell Limited-Honeywell Limitée Gordon Baker Road North York, Ontario MH N7 Honeywell Europe S.A. Avenue du Bourget 4 Brussels Belgium Honeywell Asia Pacific Inc. Room - Sun Hung Kai Centre No. Harbour Road Wanchai Hong Kong Printed in U.S.A. on recycled paper containing at least % 6-48 G.S. 7-98 post-consumer paper fibers. www.honeywell.com