2-Way Valve, 20 Inch Resilient-Seat, Honeywell VFF1UV1YXS/M

The Honeywell VFF1UV1YXS/M is a 2-way resilient-seat valve designed for efficient flow control in various applications. With a 20-inch diameter, this valve is ideal for large-scale HVAC and industrial systems. Its durable construction ensures long-lasting performance, while the resilient seat provides a tight seal to prevent leaks. The valve is easy to install and maintain, making it a reliable choice for professionals. Designed to meet industry standards, it guarantees optimal performance in demanding environments.

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Environmental & Combustion Controls
> Butterfly Valves > VFF1

VFF1UV1YXS
2-way, 20 inch resilient-seat flanged butterfly valve, 22339 Cv at 90
(7144 Cv at 60), 50 psid close-off, Pneumatic, 80 psi spring return
N.O. 2-position @ system pressure. Replaces Tyco VF5220US6LO and
VF5202FS6LO
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Product Specifications Literature and
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Overview
Resilient seat in two-way valves, provide control for HVAC system
applications including chilled water, hot water, cooling tower water,
thermal storage systems, and steam.

Product Specifications Back To Top
Description 2-way, 20 inch resilient-seat flanged butterfly valve,
22339 Cv at 90 (7144 Cv at 60), 50 psid close-off, Pneumatic, 80 psi
spring return N.O. 2-position @ system pressure. Replaces Tyco
VF5220US6LO and VF5202FS6LO
Pipe Size (inch) 20 in.
Pipe Size (DN) DN500
Body Pattern 2 way (S/R NO)
Maximum Differential Pressure Ratings (Close-off) (psi) 50 psi
Maximum Differential Pressure Ratings (Close-off) (kPa) 345 kPa
Actuator Control Type Pneumatic
Actuator Selection 2-position, 80 psi spring return
Valve Action Normally Open
Type of Enclosure Pneumatic
Includes Position indicator
Flow Characteristic Modified Equal Percent
Controlled Medium Chilled or hot water with up to 50% Glycol
Capacity at 60 degrees stroke (Cv) 7144 Cv
Capacity at 60 degrees stroke (kvs) 6180 kvs
Capacity at 90 degrees stroke (Cv) 22339 Cv
Capacity at 90 degrees stroke (kvs) 19323 kvs
Connection Type Lugged
Mounting ANSI Flanged
Static Pressure Rating (max) (psi) 250 psi
Static Pressure Rating (max) (kPa) 1724 kPa
Actuator Ambient Temperature Ratings (F) -40 F to 200 F
Actuator Ambient Temperature Ratings (C) -40 C to 95 C
Temperature Range (F) -40 F to 250 F
Temperature Range (C) -40 C to 121 C
Materials (Body) Polyester-coated cast iron ASTM A126 Class B
Materials (Seat) Peroxide-cured EPDM resilient seat
Materials (Stem) 416 stainless steel
Materials (Plug/Ball/Disc) Nylon 11-coated ductile iron
Radius (in.) 14 in.
Radius (mm) 356 mm
Neck (in.) 17-1/4 in.
Neck (mm) 438 mm
Thickness (in.) 5 in.
Thickness (mm) 127 mm
Number of Flange Bolts 20
Flange Bolt Thread 1-1/8 in. -7 pitch
Weight (lb) 497.6 lb
Weight (kg) 226.2 kg
Assembly Length (in.) 26-11/16 in.
Assembly Length (mm) 678 mm
Assembly Height (in.) 44-3/4 in.
Assembly Height (mm) 1136 mm
Assembly Width (in.) 28 in.
Assembly Width (mm) 711 mm
Literature and other Resources Download
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Product Data - (VFF1, VFF2, VFF3, VFF6 Resilient Seat Butterfly Valves
with Flanged Connections)
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Category:
SUPPLIER DIRECTORY => HONEYWELL, INC
February 2009
> Butterfly Valves > VFF1
Commercial Building Controls : Valves and Valve Actuators : Butterfly Valves : VFF1 : VFF1UV1YXS/M

2-way 20 in flanged butterfly valve

Overview

Resilient seat in 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: 26-11/16 in.; Height: 44-3/4 in.; Width: 28 in.; Neck: 17-1/4 in.; Radius; 14 in.

Dimensions (mm)

Assembly--Length: 678 mm; Height: 1136 mm; Width: 711 mm; Neck: 438 mm; Radius; 356 mm

Includes

Position indicator

Weight (lb)

497.6 lb

Weight (kg)

226.2 kg

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-- -40 F to 200 F

Ambient Temperature Range (C)

Actuator-- -40 C to 95 C

Connection Type

Lugged

Body Pattern

2 way (S/R NO)

Pipe Size (inch)

20 in.

Pipe Size (DN)

DN500

Maximum Differential Pressure Ratings (Close-off) (psi)

50 psi

Maximum Differential Pressure Ratings (Close-off) (kPa)

345 kPa

Capacity (Cv)

at 60 degrees stroke--7144 Cv; at 90 degrees stroke--22339 Cv

Capacity (Kv)

at 60 degrees stroke--6180 kvs; at 90 degrees stroke--19323 kvs

Valve Action

Normally Open

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, 2-position, 80 psi spring return

Static Pressure Rating (psi)

250 psi Maximum

Static Pressure Rating (kPa)

1724 kPa Maximum

Flange Bolts

20, Flange Bolt Thread--1-1/8 in. -7 pitch

Materials (Plug/Ball/Disc)

Nylon 11-coated ductile iron (optional: Aluminum, bronze, and stainless steel)

Category	Commercial Building Controls
Manufacturer	HONEYWELL
Product	Valves and Valve Actuators
Style	Valves and Valve Actuators

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