Keystone Figure 221/222 Butterfly Valve with Manual Actuator

The Keystone Figure 221/222 Butterfly Valve with Manual Actuator, engineered by Emerson, is a high-performance resilient-seated butterfly valve designed for reliable flow control in a wide range of industrial and commercial applications. Built for durability, versatility, and ease of operation, this valve delivers tight shutoff, low operating torque, and long service life, making it a trusted solution across industries such as water treatment, HVAC, chemical processing, and marine systems. The Keystone 221/222 series features a wafer (Figure 221) or lug (Figure 222) body design, offering flexibility for installation between flanges or for end-of-line service. Its resilient seat design ensures bubble-tight sealing in both directions, while the precision-molded disc and shaft assembly provide smooth operation and reduced wear. Equipped with a rugged manual actuator, the valve allows for accurate hand operation, supported by a locking lever or gear operator for secure position control. The combination of Keystone’s proven engineering and high-quality materials ensures maintenance-free performance and reliable sealing even under varying pressure and temperature conditions.

Technical Specification of Keystone Figure 221/222 Butterfly Valve with Manual Actuator

Material

304 Stainless Steel, 316 Stainless Steel, Buna-N, Cast Iron, EPDM Rubber

Operating Temperature

Up to 302°F (150°C)

Pressure Class

ASME

Process Connection Type

150RF

Seat/Seal Type

Resilient

Shutoff Class

Zero Leakage

Standards

API 609, ASME B16.34

Valve Size

5 inch, NPS 10 / DN 250, NPS 12 / DN 300, NPS 2 / DN 50, NPS 2-1/2 / DN 65, NPS 3 / DN 80, NPS 4 / DN 100, NPS 6 / DN 150, NPS 8 / DN 200

Valve Size Standard

NPS

Valve Type

Butterfly

Feature of Keystone Figure 221/222 Butterfly Valve with Manual Actuator

• Bubble tight shut-off at full rated pressure in both directions.
• The F222 lugged version is suitable for bi-directional end-of-line service at full pressure rating.
• Top and bottom bearings absorbs side thrust loads.
• A moulded-in O-ring in the seat for flange sealing eliminates the need for flange gaskets.
• Body locating holes for easy installation and centering between flanges.
• Extended neck allows adequate clearance for flange and insulation.

• ENGINEERED FOR RELIABILTY – Robust construction in a variety of materials with features such as full and life-long lubrication available.
• FLEXIBLE CONFIGURATION – Where available with the type of manual actuator, the solution can be configured with adjustable travel stops, worm and quadrant style gearboxes and anti-clockwise operation.
• SIMPLE INSTALLATION – Modular mounting concept for easy attachment to Emerson valves and can be mounted in most orientations.
• CUSTOMIZABLE OPTIONS – Achieve reliable efficient isolation to match your specific application with many available optional extras including chain wheels, limit switches, floor stands and security features