天然气调压撬选型，五个参数先搞清楚Five parameters to settle before specifying a regulating skid
流量范围、压力精度、介质温度、三重安全串联、控制方式——五个参数填全，方案才有可比性。Flow range, pressure accuracy, medium temperature, triple safety in series, control mode — fill these in and schemes become comparable.
一、流量范围要覆盖最大、最小与正常三种工况；二、压力精度建议明确到 ±1%；三、介质温度决定防冻与伴热配置；四、工作、监控、切断三重安全必须串联；五、控制方式（手动、电动、远程）需提前确认。河北泰燃出方案前先发参数表，出厂逐台做气密性与压力测试。
First, flow must cover maximum, minimum and normal duty. Second, state pressure accuracy to ±1%. Third, medium temperature drives freeze protection and heat tracing. Fourth, working, monitor and shut-off safety must be in series. Fifth, control mode (manual, electric, remote) must be agreed early. Tairan sends a parameter sheet before proposing a scheme and tests every unit before shipment.
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