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Item 6 Of 352
2-way 2 in flanged butterfly valve

VFF2FW1Y8P/M

2-way 2 in flanged butterfly valve

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Overview

Resilient seat two-way valves provide control for HVAC system applications including chilled water, hot water, cooling tower water, and thermal storage systems.

Product Specifications

Dimensions (in.)
Assembly--Length: 16 in.; Height: 10-15/16 in.; Width: 8 in.; Neck: 5-1/2 in.; Radius; 2-1/4 in.
Dimensions (mm)
Assembly--Length: 406 mm; Height: 277 mm; Width: 202 mm; Neck: 140 mm; Radius; 58 mm
Weight (lb)
14.7 lb
Weight (kg)
6.7 kg
Comments
Linear actuator, stroke limited to 70 degrees
Mounting
ANSI Flanged
Shipping and Storage Temperature Range (F)
-40 F to 250 F
Shipping and Storage Temperature Range (C)
-40 C to 121 C
Enclosure
Pneumatic
Ambient Temperature Range (F)
Actuator-- -20 F to 150 F
Ambient Temperature Range (C)
Actuator-- -29 C to 66 C
Connection Type
Lugged
Body Pattern
2 way (NC, NC/NO; NSR)
Pipe Size (inch)
2 in.
Pipe Size (DN)
DN50
Maximum Differential Pressure Ratings (Close-off) (psi)
175 psi
Maximum Differential Pressure Ratings (Close-off) (kPa)
1206 kPa
Capacity (Cv)
at 60 degrees stroke--61 Cv; Stroke limited to 70 degrees
Capacity (Kv)
at 60 degrees stroke--53 kvs; Stroke limited to 70 degrees
Valve Action
Normally Closed, convertible to Normally Open with Spring Return DCA
Valve Type
Butterfly
Controlled Fluid
Chilled or hot water with up to 50% Glycol. Not for use with steam or fuels.
Materials (Body)
Polyester-coated cast iron ASTM A126 Class B
Materials (Seat)
Peroxide-cured EPDM resilient seat
Materials (Stem)
416 Stainless Steel
Flow Characteristic
Modified Equal Percent
Actuation
Pneumatic, 20 psi spring return
Static Pressure Rating (psi)
250 psi Maximum
Static Pressure Rating (kPa)
1724 kPa Maximum
Flange Bolts
4, Flange Bolt Thread--5/8 in. -11 pitch
Materials (Plug/Ball/Disc)
Nylon 11-coated ductile iron (optional: Aluminum, bronze, and stainless steel)