boilers 和 hydronic heating 系统
弹簧 loaded allowing TST 以 stay 打开 当 三用表（温度压力液位）为 installed. once 三用表（温度压力液位）为 removed, 温度计套管 closes preventing media 来自 exiting 系统
minimizes 系统 downtime 带 快速 仪器 替换
CRN registered
up 以 250 psi 压力 额定值 (matching TTD 三用表（温度压力液位）)
5 年 质保
| Material | Brass |
| Tridicator Connection | 1/4" or 1/2" NPTM standard |
| Warning |  Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. |
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