孔板流量计是将标准孔板与多参数差压变送器（或差压变送器、温度变送器及压力变送器）配套组成的高量程比差压流量装置，可测量气体、蒸汽、液体及天然气的流量，广泛应用于石油、化工、冶金、电力、供热、供水等领域的过程控制和测量。 孔板流量计又称为差压式流量计，是由一次检测件(节流件)和二次装置(差压变送器和流量显示仪组成，广泛应用于气体、蒸汽和液体的流量测量。具有结构简单，维修方便，性能稳定，使用可靠等特点。

Orifice flowmeter is a high range ratio differential pressure flow device composed of standard orifice plate and multi parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter and pressure transmitter). It can measure the flow of gas, steam, liquid and natural gas. It is widely used in the process control and measurement of petroleum, chemical, metallurgical, electric power, heating, water supply and other fields. Orifice flowmeter, also known as differential pressure flowmeter, is composed of primary detection parts (throttling parts) and secondary devices (differential pressure transmitter and flow indicator). It is widely used in gas, steam and liquid flow measurement. It has the characteristics of simple structure, convenient maintenance, stable performance and reliable use.

孔板节流装置是标准节流件可不需标定直接依照国家标准生产，

The orifice plate throttling device is a standard throttling part, which can be manufactured directly according to the national standard without calibration,

1.国家标准GB2624-81<流量测量节流装置的设计安装和使用>；

1. National standard GB2624-81 < design, installation and use of throttling device for flow measurement >;

2.成熟标准ISO5167<成熟标准组织规定的各种节流装置>；

2. Mature standard iso5167 < various throttling devices specified by mature standards organization >;

3.化工部标准GJ516-87-HK06。

3. Ministry of chemical industry standard gj516-87-hk06.

产品特点：

Product features:

▲节流装置结构易于复制，简单、牢固，性能稳定可靠，使用期限长，价格低廉。

The structure of throttling device is easy to copy, simple and firm, stable and reliable performance, long service life and low price.

▲孔板流量计计算采用成熟标准与加工

The calculation of orifice flowmeter adopts mature standard and processing

▲应用范围广，全部单相流皆可测量，部分混相流亦可应用。

It has a wide range of applications, all single-phase flow can be measured, and some mixed phase flow can also be applied.

▲标准型节流装置无须实流校准，即可投用。

The standard throttling device can be put into operation without real flow calibration.

▲一体型孔板安装更简单，无须引压管，可直接接差压变送器和压力变送器。

The integrated orifice plate is more simple to install and can be directly connected with differential pressure transmitter and pressure transmitter without pressure pipe.

智能型特点

Intelligent features

▲采用进口单晶硅智能差压传感器

Imported single crystal silicon intelligent differential pressure sensor is adopted

▲高精度，完善的自诊断功能

High precision and perfect self diagnosis function

▲智能孔板流量计其量程可自编程调整。

The measuring range of intelligent orifice flowmeter can be adjusted by self programming.

▲可同时显示累计流量、瞬时流量、压力、温度。

The accumulated flow, instantaneous flow, pressure and temperature can be displayed at the same time.

▲具有在线、动态全补偿功能外，还具有自诊断、自行设定量程。

Besides online and dynamic full compensation function, it also has self diagnosis and self setting range.

▲配有多种通讯接口

Equipped with a variety of communication interfaces

▲稳定性高

High stability

▲量程范围宽、大于10：1

Wide range, more than 10:1

智能型技术指标

Intelligent technical index

▲高精度：±0.075%

High precision: ± 0.075%

▲高稳定性：优于0.1%FS/年

High stability: better than 0.1% FS / year

▲高静压：40MPa

High static pressure: 40MPa

▲连续工作5年不需调校

No adjustment is required for 5 years of continuous work

▲可忽略温度、静压影响

The influence of temperature and static pressure can be ignored

▲抗高过压

High overvoltage resistance

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