Product Description
The HONEYWELL VFF2FW1Y2B/M is a 2-way, 2 inch resilient-seat flanged butterfly valve with 144 Cv at 90 (61 Cv at 60) and 175 psid close-off. These resilient seat two-way valves provide control for HVAC system applications including chilled water, hot water, cooling tower water, and thermal storage systems.
- Sizes From 2 To 20 in With ANSI Class 125/150 Lug Pipe Connections
- Bi-Directional Flow
- Extended Neck For 2 in Of Pipe Insulation
Product Highlights
The Honeywell butterfly valve features a polyester-coated cast iron body, peroxide cured EPDM resilient seat, and a 416 stainless steel stem. Suitable for hot water and chilled water-glycol solutions.
Product Information
Standard Information
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Brand: HONEYWELL
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Manufacturer Part Number: VFF2FW1Y2B/M
Technical Specifications
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Service: Hot Water And Chilled Water-Glycol Solutions
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Close-Off Pressure: 175 psi
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Flow Characteristic: Equal Percentage
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Operating Temperature: -40 F To 250 F (-40 C To 121 C)
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Pipe Size (inch): 2 in.
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Pipe Size (DN): DN50
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Body Pattern: 2 way (NC, NC/NO; NSR)
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Maximum Differential Pressure Ratings (Close-off) (psi): 175 psi
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Maximum Differential Pressure Ratings (Close-off) (kPa): 1206 kPa
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Actuator Control Type: Electric modulating
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Actuator Selection: Non-Spring Return Modulating control
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Valve Action: Normally Closed, convertible to Normally Open with Spring Return DCA
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Type of Enclosure: NEMA 2 housing
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Controlled Medium: Chilled or hot water with up to 50% Glycol
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Capacity at 60 degrees stroke (Cv): 61 Cv
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Capacity at 60 degrees stroke (kvs): 53 kvs
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Capacity at 90 degrees stroke (Cv): 144 Cv
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Capacity at 90 degrees stroke (kvs): 125 kvs
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Connection Type: Lugged
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Mounting: ANSI Flanged
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Static Pressure Rating (max) (psi): 250 psi
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Static Pressure Rating (max) (kPa): 1724 kPa
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Actuator Ambient Temperature Ratings (F): -5 F to 140 F
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Actuator Ambient Temperature Ratings (C): -20 C to 60 C
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Temperature Range (F): -40 F to 250 F
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Temperature Range (C): -40 C to 121 C
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Materials (Body): Polyester-coated cast iron ASTM A126 Class B
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Materials (Seat): Peroxide-cured EPDM resilient seat
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Materials (Stem): 416 stainless steel
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Materials (Plug/Ball/Disc): Nylon 11-coated ductile iron
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Radius (in.): 2-1/4 in.
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Radius (mm): 58 mm
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Neck (in.): 5-1/2 in.
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Neck (mm): 140 mm
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Thickness (in.): 1-5/8 in.
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Thickness (mm): 41 mm
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Number of Flange Bolts: 4
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Flange Bolt Thread: 5/8 in. -11 pitch
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Weight (lb): 10.7 lb
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Weight (kg): 4.9 kg
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Assembly Length (in.): 7-1/16 in.
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Assembly Length (mm): 180 mm
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Assembly Height (in.): 10-7/8 in.
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Assembly Height (mm): 274 mm
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Assembly Width (in.): 4-5/8 in.
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Assembly Width (mm): 117 mm
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Approvals, Underwriters Laboratories Inc: C/US UL873, Plenum Rated
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Approvals, CE Compliant: Compliant