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HQD Type Active Piston Prover

Category： Active Piston Prover

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Product Description

Description

A new-type gas flow standard facility (flow range: 0.004–10000 L/min) with better uncertainty than bell provers, sonic nozzles, master meters, and soap film flowmeters. Features high accuracy, wide flow/pressure adjustment, fast measurement speed, and efficient auto-control—ideal for R&D, testing, quantity value transfer, and traceability of gas flowmeters, including sonic nozzles, wet gas flowmeters, float meters, mass flowmeters, laminar flowmeters, soap film flowmeters, orifice flowmeters, and diaphragm/thermal/ultrasonic gas meters.

Features

1. Metrological performance equivalent to national primary standards

2. High-precision temperature/pressure testing

3. Precision piston stroke measurement

4. Wide flow/pressure range with stable output

5. Multi-layer sealing (leak-free, self-lubricating)

6. Multiple safety protections

7. Fully automatic measurement/control with real-time high-speed bus data transmission

Parameters

Item	Parameters	Item	Parameters
Uncertainty	≤0.05%, ≤0.1%	Flow Stability	≤0.1%
Maximum Working Pressure	1MPa abs	Pressure Testing	(0～1)MPa abs
Temperature Testing	(10～30)℃	Humidity Testing	(0～100)%RH
Timing Stability	≤1×10^-6	Ambient Temperature	(20±2)℃
Power Supply	220V±20V AC 50Hz	Operation Bench Size (L×W×H)	(1080×620×1050)mm

Specification

Model	Effective Volume	Flow Range	Uncertainty	Working Pressure
HQD-001	1L	(0.0002～0.12)m³/h, (0.004～2)L/min	≤0.05%, ≤0.1%	(0～1)MPa abs
HQD-002	2L	(0.0005～0.24)m³/h, (0.008～4)L/min
HQD-003	3L	(0.0007～0.36)m³/h, (0.012～6)L/min
HQD-005	5L	(0.0012～0.6)m³/h, (0.02～10)L/min
HQD-010	10L	(0.0024～1.2)m³/h, (0.04～20)L/min
HQD-030	30L	(0.0072～3.6)m³/h, (0.12～60)L/min
HQD-050	50L	(0.012～6)m³/h, (0.2～100)L/min
HQD-100	100L	(0.024～12)m³/h, (0.4～200)L/min
HQD-200	200L	(0.048～24)m³/h, (0.8～400)L/min
HQD-300	300L	(0.072～36)m³/h, (1.2～600)L/min
HQD-500	500L	(0.12～60)m³/h, (2～1000)L/min
HQD-1000	1000L	(0.24～120)m³/h, (4～2000)L/min
HQD-2000	2000L	(0.48～240)m³/h, (8～4000)L/min
HQD-3000	3000L	(0.72～360)m³/h, (12～6000)L/min
HQD-5000	5000L	(1.2～600)m³/h, (20～10000)L/min
Flow range customizable per user requirements