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Flowrite™ VF 599 Series

Technical Instructions

Document No. 155-185P25

VF 599-4

April 9, 2007

Three-Way Valves

1/2 to 2-inch Bronze Body

PRODUCT NO.

MODEL

LANDIS & STAEFA

ASSEMBLED IN

U.S.A.

VF0186R1

Siemens Building Technologies, Inc.

Description

The Flowrite VF 599 Series ANSI Class 250 three-way valves are designed to work

with either a pneumatic or electronic actuator with a 3/4-inch (20 mm) stroke.

Features

• Direct coupled universal bonnet

• Choice of bronze or stainless steel trim

• ANSI Leakage Class IV (0.01% of Cv)

• Cartridge type packing

Application

A typical application for the Flowrite three-way valve is the mixing of two different

temperatures of water supplies.

The valve can also be used for throttling or bypass coil control applications. A pump is

recommended on the coil circuit to improve the heat transfer characteristics of the coil

and for freeze protection.

Product Numbers

See Table 1.

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 TB 249

Flowrite 599 Series Valve and Actuator Assembly Selection Technical Bulletin

(155-304P25) for selection procedure and ordering codes.

Valve assemblies can be ordered using the numbers in Table 1.

Summary of content (13 pages)

PAGE 1
Technical Instructions Document No. 155-185P25 VF 599-4 April 9, 2007 Flowrite™ VF 599 Series Three-Way Valves 1/2 to 2-inch Bronze Body PRODUCT NO. Cv MODEL LANDIS & STAEFA IN U.S.A. VF0186R1 ASSEMBLED Description The Flowrite VF 599 Series ANSI Class 250 three-way valves are designed to work with either a pneumatic or electronic actuator with a 3/4-inch (20 mm) stroke. Features • Direct coupled universal bonnet • Choice of bronze or stainless steel trim • ANSI Leakage Class IV (0.
PAGE 2
Technical Instructions Document Number 155-185P25 April 9, 2007 Specifications Material Flowrite VF 599 Series Three-Way Valves Line size Capacity Body style Seat style Action Valve body rating Stem travel (Stroke) Body Body trim Stem Packing 1/2 to 2 inches (15 to 50 mm) See Tables 2 and 3 and Figure 3 Globe style control valve with two connection options; see Table 1 Metal-to-metal Three-way mixing ANSI Class 250; see Table 4 3/4-inch (20 mm) UNS CA 844 bronze See Table 1 Stainless steel ASTM A582 Typ
PAGE 3
Flowrite VF 599 Series Three-Way Valves Accessories EA0393R1 599-00417 Packing heating element. EA0188R1 Figure 1. Packing Heating Element for Use With SKD and SQX Actuators. Figure 2. Packing Heating Element for Use With SKB/C and 8-inch Actuators. Service Kits Technical Instructions Document Number 155-185P25 April 9, 2007 The heater allows the stem to move freely in valves that control fluids at temperatures below 32°F (0°C).
PAGE 4
Flowrite VF 599 Series Three-Way Valves VF0174R1 VF0173R1 Technical Instructions Document Number 155-185P25 April 9, 2007 Female NPT x Female NPT FxF Union Female x Union Female UFxUF Table 1. 3-Way Valves. Flow Rate (Kvs) Cv 1 (0.85) 1/2 (15) 1.6 (1.37) 1/2 (15) 2.5 (2.15) 1/2 (15) 4 (3.44) 1/2 (15) 6.3 (5.43) 3/4 (20) 10 (8.6) 1 (25) 16 25 40 Page 4 Line Size Inch (mm) (13.8) 1-1/4 (21.5) 1-1/2 (34.4) 2 (32) (40) (50) Connection Stainless.
PAGE 5
Flowrite VF 599 Series Three-Way Valves Technical Instructions Document Number 155-185P25 April 9, 2007 Table 2. Maximum Water Capacity - U.S. Gallons per Minute. Valve Size in Cv\1 2 inches 1.0 1.4 Pressure Differential - psi 3 4 5 6 8 10 15 20 25 30 40 50 60 75 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 8.0 1.6 2.3 2.8 3.2 3.6 3.9 4.5 5.1 6.2 7.2 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 97 11.2 12.5 13.7 15.8 17.7 19.
PAGE 6
Technical Instructions Document Number 155-185P25 April 9, 2007 Flowrite VF 599 Series Three-Way Valves 400 300 200 80 90 100 70 60 50 40 30 20 8 9 10 Differential Pressure Δ p (kPa) 100 80 400 300 Flow Rate (GPM) 60 50 40 30 1 3 10 8 6 5 4 20 10 8 6 5 4 3 2 1 0.8 3 Flow Rate (m3/hr) 100 80 20 60 50 40 30 0 ) Cv = 4 0 (5 " 2 = 25 (40) Cv " 2 / 1-1 = 16 (32) Cv " 4 / 1 10 ) Cv = 1 1" (25 = 6.3 (20) Cv " 4 / 3 = 4.0 (15) Cv " 2 / 1 = 2.5 (15) Cv 1/2" = 1.6 (15) Cv " 2 / 1 .
PAGE 7
Flowrite VF 599 Series Three-Way Valves Technical Instructions Document Number 155-185P25 April 9, 2007 NC (Upper port) Table 5. Maximum Available Close-off Pressures for Pneumatic Actuators, Action, Upper Port.
PAGE 8
Technical Instructions Document Number 155-185P25 April 9, 2007 Flowrite VF 599 Series Three-Way Valves 1400 1200 150 1000 800 100 600 50 400 25 200 0 1-1/4" 1-1/2" 1200 150 1000 800 100 600 50 400 25 200 2" 0 1/2" 3/4" 1-1/4" 1-1/2" 2" 1200 150 1000 800 100 600 400 50 200 25 0 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 1600 200 1400 1200 150 1000 800 100 600 50 400 25 200 Differential Pressure (kPa) 1400 Differential Pressure (psi) 200 Differential Pressure (kPa) 250 160
PAGE 9
Flowrite VF 599 Series Three-Way Valves Operation, continued Technical Instructions Document Number 155-185P25 April 9, 2007 If this valve is used in diverting applications, the following conditions apply: Diverting service with modulating control can use mechanical actuators such as the SQX and SKB/D. The differential pressure must not exceed 90% of the maximum differential pressure specified for the three-way valve in mixing service.
PAGE 10
Technical Instructions Document Number 155-185P25 April 9, 2007 Dimensions Flowrite VF 599 Series Three-Way Valves The letters in Figure 6 refer to actuator and service envelope dimensions in Table 7. See Table 8 for valve body dimensions. W Table 8. Dimensions of the Actuator and Recommended Service Envelope. Dimensions in Inches (millimeters).
PAGE 11
Flowrite VF 599 Series Three-Way Valves Technical Instructions Document Number 155-185P25 April 9, 2007 B B C VF0180R1 C VF0181R1 A Female NPT by Female NPT F×F A Union Female × Union Female UF×UF Table 9. 3-Way Valve Dimensions. Valve 3-Way Dimensions in inches (mm) F×F UF×UF Female NPT × Female NPT Union Female × Union Female A B C A B C Weight lb (kg) FxF UFxUF Valve Size inch (mm) 1/2 2-7/8 4-5/16 2-11/16 4-11/16 6-1/4 4-5/8 3 4 (15) (72) (110) (68) (119) (159) (117) (1.
PAGE 12
Technical Instructions Document Number 155-185P25 April 9, 2007 Flowrite VF 599 Series Three-Way Valves ;;; ; ;;; ; ;;; ;; ; ; ;;; ;; ;; ;; Parts List 1 2 3 8 4 NC 10 11 COM 5 6 NO VF0178R1 7 Table 10. Parts List for 3-Way Bronze Valves. Item Page 12 Part Name Part No.
PAGE 13
Flowrite VF 599 Series Three-Way Valves Service Kits Technical Instructions Document Number 155-185P25 April 9, 2007 To select the service kit, know your valve body assembly number and the type of connection. Read down the Connection column until you find the valve body assembly number and then read to the far right to identify the correct kit. NOTE: The valve body assembly number and model number are stamped on the tag on the valve body. Table 11. Rebuild/Repack Service Kits Part Numbers.