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Circle Seal 单向阀2200 系列
2200 Series
0 to 800 psig Check Valves
特征
•中等流量
•单件设计
•弹性o形圈
受益者
•免维护
•可靠
•经济的
技术数据
车身结构材料：黄铜、316不锈钢
O型环材料丁腈橡胶、乙烯丙烯、氯丁橡胶、硅树脂、，
或氟橡胶®
工作压力0至800 psig（55巴）
验证压力1200 psig（83巴）
开裂压力1至3 psig（0.07至0.21 bar）
温度范围−70华氏度至+450华氏度(−57°C至+232°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1˝
注意：建议进行适当过滤，以防止损坏密封面。
工作原理
打开
流量平稳通过提升头
湍流最小，无限制通过流动导轨。
结束
O型环自动建立起连接线
与球形阀座接触，以缓冲
关闭并确保完美密封。
关闭
仅O形密封圈。全压由压力传感器承载
金属对金属阀座。
22 59 B – 2 MM – 1
O-RING MATERIAL, TEMPERATURE &
STANDARD CRACKING RANGE
49 Buna N, −65° F to +250° F, 4.0 psig
59 Buna N, −65° F to +275° F, 2.0 psig
62 EPR, −65° F to +300° F, 4.0 psig
33 Neoprene, −40° F to +300° F, 4.0 psig
24 Silicone, −70° F to +450° F, 2.0 psig
32 Viton®, −20° F to +400° F, 2.0 psig
20 PTFE, −100° F to +400° F, 4.0 psig
BODY MATERIAL
B Brass†
T1 316 stainless steel
CRACKING PRESSURE
Call out dash number if not standard
1 1 psig
CONNECTIONS—INLET/OUTLET
M Male pipe, NPT
S Male British taper pipe
VALVE SIZE
1 1⁄8˝
2 ¼˝
3 3⁄8˝
4 ½˝
6 ¾˝
8 1˝
† For PED applications, brass bodies are limited to a maximum temperature of +100° F (+38° C).
Please consult Circle Seal Controls or your local distributor for information on special connections, o-rings, operating pressures,
reseal pressures and temperature ranges.
Leakage
2249, 2262 Series zero @ 3 psig to 800 psig
2259, 2232, 2233 & 2224 Series zero @ 1 psig to 800 psig
2220 Series 10cc/min maximum from zero to 75 psig; zero from 75 psig to 800 psig
Cracking Pressure
Minimum cracking pressure available: 0.1 psig
Maximum cracking pressure available: 7.0 psig
Note: Cracking pressure is defi ned as pressure at which fl ow is 5cc/min, except the 2220 Series, for which fl ow is approximately 0.02 cfm. For standard cracking pressures
and less (example: 2259–2MM–.3), the tolerance is +0%, −100%. For cracking pressure greater than standard (example: 2259B–2MM–5), the tolerance is ±20%.
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