EQUIPMENT / EQUIPMENT FAMILY

Gerui 9-19 high-pressure centrifugal fans

High-pressure centrifugal fans for forced process air, sized No.4A to 16D, for clean gas generally up to 50°C and at most 80°C.

From Gaobeidian Gerui · General and process-air fan manufacture

Product guide · HVACDeck Editorial · Sources checked 2026-10-11

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Manufacturer catalogue image · 9-19 No.4A–16D; 9-26 ratings on request

01 / UNDERSTAND THE EQUIPMENT

9-19 high-pressure fans: the right schedule and a process duty point

Gerui's 9-19 is a high-pressure centrifugal fan for forced air and process duties. Gerui lists it together with the 9-26 under one heading, but the published schedule is titled 9-19 No.4A–16D, and the A and D pages both repeat it. Both pages then add tables headed Y8-39 and Y9-38, which belong to other fan families. The A-family image shows a volute with a top rectangular outlet and a rear motor on a common support.

Two rows give the scale. No.4.5A at 2900 r/min with a Y112M-2 4 kW motor covers 1174–2062 m³/h at 4603–4447 Pa total pressure. No.10D at 1450 r/min with a Y200L-4 30 kW motor covers 6440–12450 m³/h at 5840–5495 Pa. Gas temperature is generally up to 50°C and at most 80°C, a dust and particle limit of 150 mg/m³ applies, and the gas must not be corrosive, flammable or sticky. Send the process airflow, the pressure and how it is measured, and the gas and its temperature, then ask Gerui for the named model, curve and drawing.

02 / READ THE CONDITIONS

Published parameters and their scope

This is an equipment family; ask the manufacturer to select the model that matches your duty.

Family designation: 9-19 No.4A–16D; 9-26 ratings on request

Swipe the table, or focus it and use arrow keys, to read the conditions and sources.

Manufacturer-published values · conditions are part of the specification
Parameter	Published value	Conditions and sources
Schedule title	9-19 No.4A–16D	Repeated on the A and D pages; no 9-26 schedule is published. Source
No.4.5A row	2900 r/min; Y112M-2 4 kW; 1174–2062 m³/h; total pressure 4603–4447 Pa	Ask for the reference air condition and absorbed power. Source
No.10D row	1450 r/min; Y200L-4 30 kW; 6440–12450 m³/h; total pressure 5840–5495 Pa	A different size and drive; compare offers at equal duty. Source
Temperature and dust	Generally ≤50°C; maximum 80°C; dust/hard particles ≤150 mg/m³	Give your gas and operating envelope. Source
Pictured arrangement	Volute, top rectangular outlet and rear motor on support	Outlet angle, rotation and guarding come on the drawing. Source
Other tables on the page	Y8-39 and Y9-38 blocks	Other fan families; request their own sheets if relevant. Source

Selection and application

Ordering by the 9-19 name

The page titles name 9-19 and 9-26. The first table names 9-19, and the next two name Y8-39 and Y9-38. Keep those names apart in your enquiry, and ask for the exact current model with its own schedule.

If Gerui proposes a 9-26, ask for its separate data sheet and curve, because none of the published values belong to that family.

Defining the high-pressure duty

No.4.5A at 2900 r/min and No.10D at 1450 r/min show how widely the schedule spreads, from a 4 kW motor to a 30 kW motor. Each row is a catalogue selection along a curve.

Give paired flow and pressure, say whether the pressure is static or total, and state inlet gas temperature and density. Ask for the selected curve, the operating point on it and the total electrical input. The flow and pressure limits in a row sit at opposite ends of the curve, and the 4 kW and 30 kW rows serve very different duties.

Process gas inside the published limits

Gerui describes forced air for processes and excludes corrosive, self-igniting, explosive, volatile and sticky gases. Normal gas temperature is 50°C, the maximum is 80°C, and dust content stays at or below 150 mg/m³. Send the gas and material duty and any upset conditions for Gerui to review.

For hot flue gas, pressure containment or explosion protection, write the requirement into the enquiry, and ask for the materials, casing pressure, connections and conformity documents for your market. The application list on the page covers ordinary process air.

Layout, drive and test package

Obtain rotation and outlet drawings, foundation and support loads, motor, drive and guard details and service clearance. The A image shows a rear motor and top outlet; D-arrangement dimensions and transmission come on their own drawing. State which starter and controls are included and how the fan responds to faults.

Agree impeller material traceability, balance and run checks and a performance test against the issued selection. Request sound data with the test basis. Price and delivery come with the selection.

Published data to use

The 9-19 table rows and the A-family image.

Read the source

Tables to set aside

Y8-39 and Y9-38 blocks, and any values for 9-26.

Read the source

Order file

Model curve, gas and pressure scope, drive, layout and acceptance test.

Read the source

What Gerui should confirm in writing for a 9-19

Get Gerui's written confirmation of: which 9-19 size, arrangement and speed meets your duty; the pressure convention on the curve; gas temperature limits for your process, including any time above 50°C; impeller and casing material; motor model, kW and starting method; rotation, outlet and foundation drawing; balance, run and performance test scope; and price and delivery.

Sources

Compiled by HVACDeck Editorial. Figures are as published by the manufacturer; ask for test records for the unit you select.

Official A-titled high-pressure pageChecked 2026-10-11 · Medium limits, the A-family image and four table blocks, the first headed 9-19.
Official D-titled high-pressure pageChecked 2026-10-11 · Repeats the 9-19 schedule, followed by Y8-39 and Y9-38 tables.

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