Dwyer 2000-2KPA, 2000-3KPA, 2000-5KPA Differential Pressure Gauge

Trong các ứng dụng HVAC công nghiệp nặng, nhà máy xi măng, chế biến gỗ hoặc hệ thống lò đốt lò hơi, áp suất vận hành trong đường ống và qua các thiết bị lọc rũ bụi tĩnh điện vô cùng lớn. Việc sử dụng các dòng đồng hồ đo chênh áp dải nhỏ sẽ gây hỏng hóc thiết bị ngay lập tức do quá tải. Các dòng model Dwyer Magnehelic dải cao bao gồm 2000-2KPA, 2000-3KPA, và 2000-5KPA được chế tạo để giải quyết bài toán này.

Dwyer Differential Pressure Gauges Model 2000-2KPA, 2000-3KPA, and 2000-5KPA — Differential Pressure Measurement Solutions for Industrial Fans and Cyclone Dust Collectors

In heavy industrial HVAC applications, cement plants, wood processing facilities, or boiler incinerator systems, the operating pressure within ductwork and across electrostatic precipitators or filtration units is exceptionally high. Using low-range differential pressure gauges in these environments will lead to immediate equipment failure due to overpressure. The high-range Dwyer Magnehelic models—including the 2000-2KPA, 2000-3KPA, and 2000-5KPA—are specifically engineered to solve this challenge.

What Are the Dwyer 2000-2KPA, 2000-3KPA, and 2000-5KPA Gauges?

These are high-range differential pressure measurement instruments from the renowned Series 2000 by Dwyer Instruments (USA). Specifically, the 2000-2KPA model measures a range of 0–2 kPa (0–2000 Pa), the 2000-3KPA model measures 0–3 kPa, and the 2000-5KPA model handles high pressures up to 0–5 kPa. They feature a rugged, die-cast aluminum housing designed to withstand harsh pressure demands.

Advanced HVAC Knowledge — Differential Pressure Control in Pulse-Jet Baghouse Filters

Industrial pulse-jet baghouse filtration systems collect fine dust generated during production processes. As dust accumulates on the filter bag surfaces, the differential pressure between the dirty air chamber and the clean air chamber rises sharply, restricting the airflow of the plant's ventilation system. The maximum operating differential pressure before initiating the compressed air pulse-cleaning cycle typically ranges from 1.5 kPa to 3.5 kPa. Installing these high-range gauges allows design engineers to program mechanical pulse-cleaning sequences or visually monitor filter clogging in industrial systems with high accuracy.

Technical Specifications (Extracted from Dwyer Catalog)

Feature	Specification
Accuracy	±2% of full scale at standard temperature
Enclosure Rating	IP67 weatherproof standard (protection against rain and atmospheric dust)
Max. Working Pressure	15 psig (1.034 bar) continuous
Safety Relief Mechanism	Rear rubber blowout plug opens at approximately 25 psig

Installation Considerations

Duct and Pipe Vibration: Excessive vibration can cause the mechanical pointer to oscillate. It is highly recommended to mount the gauge on an independent bracket, isolating it from the vibration of the dust collector housing.
Skipping the Zeroing Process: You must adjust the front-facing zero screw before pressurizing the system to ensure the lowest possible measurement error.