Keystone Figure 990/920 Butterfly Valve with Manual Actuator

  • NG # 03000-HW-KEY-012

The Keystone Figure 990/920 is a split body, thin disc resilient seated butterfly valve complete with manual actuator, configurable as a handle or gear operator.

Manufactured By :
KeyStone
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Stock
10 in stock

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Need Help Ordering?
Call +88 01714243446

Stock
10 in stock

Custom Pricing

Get A Quote

Overview


The Keystone Figure 990/920 Butterfly Valve is designed to provide optimal performance in a wide range of industrial applications. Its one-piece, thin profile disc stem is engineered to minimize flow obstruction, ensuring maximum Cv, reduced pressure drops, and enhanced control characteristics. The rounded, polished disc edge contributes to a full concentric sealing, offering lower operating torques, extended seat life, and reliable tight shut-off capabilities. This design ensures high efficiency while maintaining longevity in demanding environments.


A key feature of this valve is its triple-function resilient seat, which not only isolates the body and stem from the line media but also guarantees drop-tight shut-off at full-rated pressure. This seat also delivers positive flange sealing, eliminating the need for additional flange gaskets. This multi-functional seat design enhances overall operational reliability while reducing maintenance complexities. Further contributing to durability, the valve is equipped with a heavy-duty, corrosion-resistant top bushing, providing upper stem support and absorbing actuator sideloading, extending the overall valve cycle life.


In terms of maintenance, the split-body design simplifies field replacement of the seat and disc/stem, facilitating easy repairs and extending the lifespan of the valve. The design also supports direct mounting of Keystone actuators without requiring additional couplings or brackets, allowing for seamless integration into various systems.


Paired with the Emerson Manual Actuator, this valve system ensures engineered reliability through robust construction. The actuator is available in a range of materials and features full life-long lubrication, ensuring long-lasting performance. Its flexible configuration options include adjustable travel stops and worm and quadrant style gearboxes. The actuator can also be installed in most orientations thanks to a modular mounting concept, making installation straightforward and adaptable.


For applications requiring custom solutions, the Emerson Manual Actuator offers a wide range of optional extras, such as chain wheels, limit switches, floor stands, and security features, allowing for tailored solutions to specific operational needs. This combination of the Keystone valve and Emerson actuator provides reliable, efficient isolation for a variety of industrial applications.

Specification



Keystone Figure 990/920 Butterfly Valve
Material316 Stainless Steel, Buna-N, Cast Iron, Ductile Iron, Duplex, Epdm Rubber, Hastelloy, Monel, Super Duplex, Teflon, Titanium
Operating TemperatureUp to 250 F (120 C)
Pressure ClassASME
Process Connection Type150RF
Seat/Seal TypeResilient
Shutoff ClassZero Leakage
StandardsAPI 609, ASME B16.34
Valve TypeButterfly
Valve SizeNPS 1-1/2 / DN 40, NPS 14 / DN 350, NPS 16 / DN 400, NPS 8 / DN 200, NPS 18 / DN 450, NPS 2 / DN 50, NPS 20 / DN 500, NPS 6 / DN 150, NPS 10 / DN 250, NPS 1 / DN 25, 5 inch, NPS 4 / DN 100, NPS 12 / DN 300, NPS 2-1/2 / DN 65, NPS 3 / DN 80
Valve Size StandardNPS
Valve TypeButterfly
MediaSpecialty Gases, Liquids, Air, Inert Gas, Water, Air
StemO-ring


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