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  • 产品名称：221 and 222 Resilient Seated Butterfly Valve

  • 产品型号：221 and 222 Resilient Seated Butterfly Valve
  • 产品厂商：其它品牌
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简单介绍：
221 and 222 Resilient Seated Butterfly Valve 221和222软密封蝶阀 221（晶圆）和222例模内座椅的设计是用于取暖，通风，空气调节系统及一般工业服务适合（片式）。
详情介绍：
221 and 222 Resilient Seated Butterfly Valve
221和222软密封蝶阀
221（晶圆）和222例模内座椅的设计是用于取暖，通风，空气调节系统及一般工业服务适合（片式）。

Figures 221 and 222 Resilient Seated Butterfly Valve

  • Description
  • Specifications
  • Documentation
Butterfly Valves, Wafer/Lugged, Resilient Seated, Keystone Figures 221 and 222 Resilient Seated Butterfly Valve 

Figures 221 (wafer) and 222 (lug style) with molded-in seat design are suited for heating, ventilation, air conditioning and general industrial services.

Features & Benefits:

  • Molded-in resilient seat provides bubble-tight shutoff to 250 psi.
  • Offered in two body styles: wafer and lug. The lugged body is drilled and tapped for isolation and removal of downstream piping at full rated pressure.
  • Round, polished disc and hub edge provides 360 degree concentric seating, minimum flow restriction, lower torques and longer seat life.
  • Upper and lower inboard bronze bearings ensure longer service life with low operating torques.
  • Thru-stem design provides high strength and positive disc control with standardized end connection for operator interchangeability.
  • Extended neck allows adequate clearance for flanges and insulation.
  • Bi-directional, self-adjusting stem seal, located in the upper journal, is suitable for vacuum and pressure while also preventing external contamination of the stem area.
  • Heavy-duty corrosion resistant top bushing, located in the upper journal, absorbs actuator side thrust.
  • Cast-in top plate is an integral part of the body and is standardized to allow direct mounting of all Tyco actuators.
  • Each valve is factory tested to 110 percent of specified pressure rating.

  • Specifications
  •  
  • Size Range: 2" to 12"
    Pressure Rating: 250 psi
    Bi-directional Dead End Rating: 250 psi
    Temperature Rating: -40°F to +250°F
    Flange Accommodation: ASME 125/150
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