Keystone Butterfly Valves

In 1951, Keystone Valves launched a new valve concept—the rubber-seated butterfly valve. Through ongoing innovation and customer feedback, Pentair's Keystone brand offers trims and sizes of butterfly valves to suit most applications for isolation and control of liquids, gases, or slurries. By both mechanical and polymer engineering, Keystone butterfly valves have a strong focus on offering long service life through high cycle capabilities. Benchmarking ensures Pentair's Keystone brand remains a leader in this critical area against other makers of butterfly valves for the process sectors.

High Performance

Model
Pressure
Temperature
Size
Style
Up to ASME 300
-40°C - +530°C
DN 50-900
Polymer, fire-safe and metal seats
Up to ASME 300
-40°C - +260°C
DN 50-600
Polymer seats
Up to 15.86 bar
-40°C - +170°C
DN 50-900
Elastomer seats
Up to ASME 600
-48°C - +400°C
DN 50-1200
Polymer, fire-safe and metal seats
Up to 40 bar
-50°C - +400°C
DN 50-700
Polymer, fire-safe and metal seats
Up to ASME 150
-29°C - +177°C
DN 50-300
Polymer seats
Up to ASME 300
-29°C - +538°C
DN 50-900
Polymer, fire-safe and metal seats
Up to ASME 300
-40°C - +538°C
DN 50-600
Polymer seats

Lined

Model
Pressure
Temperature
Size
Style
Up to 10 bar
-40°C - +200°C
DN 50-300
N/A

Resilient Seated

Model
Pressure
Temperature
Size
Style
Up to 10.34 bar
-40°C - +120°C
DN 65-1800
Double flanged - centric
N/A
-28°C - +160°C
DN 600-1800
Double flanged - centric
Up to 16 bar
-40°C - +160°C
DN 40-900
N/A
Up to 25 bar
-15°C - +130°C
DN 50-2400
N/A
Up to 16 bar
-40°C - +150°C
DN 40-300
N/A
Up to 10 bar
-30°C - +150°C
DN 40-800
N/A
Up to 10 bar
-40°C - +150°C
DN 25-500
N/A
Up to 10 bar
-10°C - +150°C
DN 25-300
N/A
Up to 16 bar
-40°C - +120°C
DN 100-1200
Double flanged - centric
Up to 16 bar
-10°C - +80°C
DN 350-1400
Double flanged - eccentric
Up to 16 bar
-29°C - +120°C
DN 50-300
N/A
Up to 16 bar
-40°C - +120°C
DN 65-150
N/A
Up to 21 bar
Up to +80°C
DN 700-1400
Double flanged - centric
Up to 17.24 bar
N/A
DN 50-600
N/A
Up to 14 bar
-30°C - +105°C
DN 50-500
Resilient seated
Up to 16 bar
Up to +107°C
DN 50-300
Resilient seated
Up to 21 bar
Up to +120°C
DN 300-600
Double flanged - centric
Up to 16 bar
-40°C - +160°C
DN 50-900
N/A
Up to 16 bar
-28°C - +160°C
DN 20-900
N/A
Up to 16 bar
Up to +120°C
DN 100-1050
Double flanged - centric
Up to 16 bar
-40°C - +120°C
DN 700-3000
Double flanged - eccentric
Up to 14 bar
-40°C - +120°C
DN 50-500
Resilient seated
N/A
-40°C - +160°C
DN 600-1800
Double flanged - centric

Slurry Control

Model
Pressure
Temperature
Size
Style
Up to 16 bar
-40°C - +120°C
DN 65-150
Wafer style - heavy duty slurry
Up to 16 bar
-40°C - +120°C
DN 65-150
Extended body - extreme heavy duty slurry
Up to 16 bar
-40°C - +120°C
DN 65-150
Wafer style - light duty slurry
Up to 16 bar
-40°C - +120°C
DN 65-150
Wafer style - medium duty slurry
Up to 14 bar
-20°C - +120°C
DN 50-500
Resilient seated