Circle Seal 100 系列止回阀
低压
•适用于25 psig压力的轻型止回阀。
超灵敏
•独特的设计允许以最小压力流动
不同的。 破裂压力为4˝H2O。
正密封
•提升阀上独特的刀口位置与
即使压力极低，也应提供零密封。
零泄漏
•结构紧凑，易于安装。高效的内联设计降低了成本
大小和重量。阀门可以安装在任何位置。
技术数据
车身结构材料：铝、黄铜、钢、303或316不锈钢
O型环材料丁腈橡胶或氟橡胶®
工作压力25 psig（1.7巴）
破裂压力4˝H2O
温度范围−40华氏度至+400华氏度(−40°C至+204°C）
根据o形圈和阀体材料，请参见“如何订购”
连接尺寸1⁄8˝至¾˝
注意：建议进行适当过滤，以防止损坏密封面。
工作原理
打开
满流量通道脱离er最小流量限制。春天是
完全从流动路径上移除
关闭
当进口供油压力降低时，轻型弹簧关闭
提升阀，自动将刀口定位在
将密封件接触o形圈。刀的印痕
边缘由一个金属对金属的阀座限制，该阀座承载背面
压力负载，用于防止o形圈卡滞。
1 19 B – 2 PP
O-RING MATERIAL &
TEMPERATURE RANGE
19 Buna N, −40° F to +250° F
32 Viton®, −20° F to +400° F
MATERIAL
A Aluminum
B Brass
T 303 stainless steel†
T1 316 stainless steel
CONNECTIONS—INLET/OUTLET
P Female pipe, NPT
VALVE SIZE
1 1⁄8˝
2 ¼˝
3 3⁄8˝
4 ½˝
6 ¾˝
† Not available for PED applications.
Please consult Circle Seal Controls or your local distributor for information on special connections, o-rings, operating pressures,
reseal pressures and temperature ranges.
Repair Kits
In normal service, the only part(s) which may require replacement is(are) the seal(s). A repair kit may be ordered by placing a ‘K/’
in front of the complete part number (i.e. K/119B–2PP).
Although we off er separate kits where o-ring replacement is considered necessary, factory repair is recommended. Because of the ultra-sensitive characteristics of this
valve, extreme care is necessary to insure that the o-ring is properly fi tted into the groove without being twisted or distorted.
For Your Safety
It is solely the responsibility of the system designer and user to
select products suitable for their specifi c application requirements
and to ensure proper installation, operation, and maintenance
of these products. Material compatibility, product ratings and
application details should be considered in the selection. Improper
selection or use of products described herein can cause personal
Viton® is a registered trademark of DuPont Dow Elastomers. injury or property damage.
