Honeywell VFF2 Catalog Page
Butterfly Control Valves
VFF2 Two-way Butterfly Control Valves
Resilient seat two-way valves provide control for HVAC system applications including chilled water, hot water, cooling tower water, and thermal storage systems.
Body Pattern: 2 way (NC, NC/NO; NSR)
Valve Action: Normally Closed, convertible to Normally Open with Spring Return DCA
Connection Type: Lugged
Controlled Medium: Chilled or hot water with up to 50% Glycol; not for use with steam or fuels.
Flow Characteristic: Modified Equal Percent Mounting: ANSI Flanged
Static Pressure Rating (max): 250 psi (1724 kPa)
Actuator Ambient Temperature Ratings: -5 F to 140 F (-20 C to 60 C)
Temperature Range: -40 F to 250 F (-40 C to 121 C)
Number of Flange Bolts
For 2 in., 2-1/2 in., 3 in. valves: 4 For 4 in., 5 in., 6 in., 8 in., valves: 8 For 10 in., 12 in., 14 in. valves: 12 For 16 in., 18 in. valves: 16
For 20 in. valves: 20
Flange Bolt Thread
For 2 in., 2-1/2 in., 3 in., 4 in. valves: 5/8 in. -11 pitch For 5 in., 6 in., 8 in., valves: 3/4 in. -10 pitch
For 10 in., 12 in. valves: 7/8 in. -9 pitch
For 14 in., 16 in., 18 in., 20 in. valves: 1-1/8 in. -7 pitch
Materials
(Body): Polyester-coated cast iron ASTM A126 Class B (Stem): 416 Stainless Steel
(Seat): Peroxide-cured EPDM resilient seat
(Plug/Ball/Disc): Nylon 11-coated ductile iron (optional: aluminum, bronze, and stainless steel)
Approvals CE: Compliant
Underwriters Laboratories, Inc: C/US UL873, Plenum Rated
Accessories:
VFF50-0400-Position status monitor for VFF butterfly valves with high pressure pneumatic actuators
NOTE: Valves with Manual Operators use over-cut disks to achieve 250 psid close-off, and cannot be automated due to their high torque
536 |
customer.honeywell.com |
70-6910 |
Butterfly Control Valves
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| <![if ! IE]> <![endif]>Butterfly Valves |
<![if ! IE]> <![endif]>Fitting |
<![if ! IE]> <![endif]>Body Pattern |
<![if ! IE]> <![endif]>Size |
<![if ! IE]> <![endif]>Disk size (close-off) |
<![if ! IE]> <![endif]>Pressure Rating |
<![if ! IE]> <![endif]>Valve trim |
<![if ! IE]> <![endif]>Actuator secondary Specification |
<![if ! IE]> <![endif]>Actuator primary Specification |
Description |
<![if ! IE]> <![endif]>Actuator Type |
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VF Butterfly Valve, resilient seat |
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F |
Flanged fitting |
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12-way (spring return normally open)
22-way (non-spring return: Spring return normally closed or field-convertible)
33-way A-B-AB (mixing/diverting)
6 3-way A-AB-B (diverting/mixing)
F 2 inch (DN50)
G2-1/2 inch (DN65)
H3 inch (DN80)
J 4 inch (DN100)
K5 inch (DN125)
L6 inch (DN150)
M8 inch (DN200)
N10 inch (DN250)
P12 inch (DN300)
R14 inch (DN350)
S16 inch (DN400)
T18 inch (DN450)
U20 inch (DN500)
V Undercut disk (lower actuator torque; 50 psid close-off) W Full diameter disk (high close-off)
1ANSI 150 psig body pressure rating
2ANSI 250 psig body pressure rating
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Y |
Nylon-coated disk, EPDM seat |
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2 |
NEMA 2 actuator housing (Honeywell DCA) |
<![if ! IE]> <![endif]>Electric |
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X |
NEMA 4X actuator housing with manual operator and heater |
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6 |
NEMA 6 actuator housing with manual operator and heater |
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8 |
Spring Range 8-13 psi for 20 psi pneumatic actuator |
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C |
24 Vac solenoid for 80 psi pneumatic actuator |
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D |
Electro-pneumatic positioner for 80 psi actuator |
<![if ! IE]> <![endif]>Pneumatic |
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X |
Standard, two-position control only |
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E |
120 Vac solenoid for 80 psi pneumatic actuator |
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P |
Pneumatic positioner for modulating applications |
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L |
Lever operator for dead end service |
<![if ! IE]> <![endif]>Manual |
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G |
Geared operator for dead end service |
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A |
Floating actuator |
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B |
Modulating actuator |
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C |
Two-position 24 Vac spring return actuator |
<![if ! IE]> <![endif]>Electric |
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E |
Two-position 120 Vac spring return actuator |
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D |
Modulating spring return actuator |
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P |
Pneumatic actuator, spring return 20 psi |
<![if ! IE]> <![endif]>Pneumatic |
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S |
Pneumatic actuator, spring return 80 psi |
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R |
Pneumatic actuator, push-pull 80 psi |
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X |
Valve body only, for dead end service |
<![if ! IE]> <![endif]>Man |
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2-way, 4 inch flanged resilient-sear butterfly valve, undercut disk (50 psid close-off) |
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VF |
F |
2 |
J |
V |
1 |
Y |
2 |
D |
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modulating/floating control, spring return normally closed. |
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<![endif]>Commercial
<![if ! IE]><![endif]>Components
**VFF50-0400 position status monitor for VFF butterfly valves with high pressure pneumatic actuators is available to be ordered separately or will be assembled to the valve if ordered at the same time. It is compatible with any high pressure pneumatic actuators without pneumatic or electro-pneumatic positioner (e.g. VFF...XR/XS, VFF...CR/CS, or VFF...ER/ES).
70-6910 |
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537 |
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