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Circle Seal 100 系列止回閥
低壓
•適用於25 psig壓力的輕型止回閥。
超靈敏
•獨特的設計允許以最小壓力流動
不同的。 破裂壓力為4˝H2O。
正密封
•提升閥上獨特的刀口位置與
即使壓力極低，也應提供零密封。
零洩漏
•結構緊湊，易於安裝。高效的內聯設計降低了成本
大小和重量。閥門可以安裝在任何位置。
技術數據
車身結構材料：鋁、黃銅、鋼、303或316不鏽鋼
O型環材料丁腈橡膠或氟橡膠®
工作壓力25 psig（1.7巴）
破裂壓力4˝H2O
溫度範圍−40華氏度至+400華氏度(−40°C至+204°C）
根據o形圈和閥體材料，請參見“如何訂購”
連接尺寸1⁄8˝至¾˝
注意：建議進行適當過濾，以防止損坏密封面。
工作原理
打開
滿流量通道脫離er最小流量限制。春天是
完全從流動路徑上移除
關閉
當進口供油壓力降低時，輕型彈簧關閉
提升閥，自動將刀口定位在
將密封件接觸o形圈。刀的印痕
邊緣由一個金屬對金屬的閥座限制，該閥座承載背面
壓力負載，用於防止o形圈卡滯。
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.
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