What is the Spray Dryer Nozzle Test Bench?

The Spray Dryer Nozzle Test Bench is a portable, air-driven high-pressure test system that boosts water pressure up to 350 bar (10,000 PSI) using a Haskel air-driven pump. It is used for proof, burst, and leak testing of spray dryer nozzles and hydraulic hoses.

Who manufactures the Spray Dryer Nozzle Test Bench?

The Spray Dryer Nozzle Test Bench is designed and manufactured by Neometrix Engineering Pvt Ltd, a leading test equipment manufacturer based in Noida, India.

What drive medium does the bench use?

The bench uses dry, filtered compressed air or nitrogen at a minimum 6 kg/cm2 supply pressure and 60 SCFM flow to drive the Haskel air-driven pump. Air dew point (DPT) requirement is -40°C.

Is the system portable?

Yes. The Spray Dryer Nozzle Test Bench is mounted on a portable 4-wheel trolley for easy relocation within the facility.

NMX‑SDNT‑350 / Rev 01 / 350 bar · Air-Driven Haskel Pump · Water / Noida · India 2026 · Product Page

NMX-SDNT-350

Spray dryer nozzle test bench. 350 bar.

Air-driven Haskel pump system boosting water pressure from supply to 350 bar (10,000 PSI) for proof, burst, and leak testing of spray dryer nozzles and hydraulic hoses — mounted on a portable 4-wheel trolley.

Request proposal System sections

Spray Dryer Nozzle Test Bench — Neometrix, Noida

Fig · 01 Portable bench — air drive section, Haskel pump, high-pressure outlet

Test Pressure

350bar

PSI Range

10KPSI

Drive Air

6kg/cm²

Drive Flow

60SCFM

Mobility

4-wheel

Overview

Air-driven pressure boosting for nozzle testing.

The Spray Dryer Nozzle Test Bench uses a Haskel air-driven pump to amplify low-pressure compressed air supply into high-pressure water output — up to 350 bar — for testing spray dryer nozzles and high-pressure hydraulic components without requiring a separate electrical supply for the pump drive.

Spray Dryer Nozzle Test Bench — Haskel pump and pressure gauges detail

Fig · 02 Haskel air-driven pump with high-pressure gauge — outlet side detail

The complete system is divided into three functional sections: the Air Drive Section which conditions and regulates the compressed air supply, the Hydraulic Boosting Section where the Haskel pump converts air energy into high-pressure water output, and the Filling & Flushing Section for controlled filling of the test article and air flushing of the circuit after testing.

Drive air pressure is adjustable via a front-panel regulator — rotating clockwise increases pressure, anticlockwise decreases it — giving the operator precise, stepless control of the output hydraulic pressure without any electrical intervention. The drive air open/close valve starts and stops the booster pump instantly.

350 bar from compressed air — no motor, no inverter, no electrical pump drive. Safe and simple.

The complete bench is mounted on a robust 4-wheel trolley, making it portable across production bays, maintenance workshops, and test cells without any lifting equipment.

System Sections

Three sections. One complete circuit.

Each functional section is independently operable and accessible for maintenance, with a clear operator interface on the front panel.

Section · A | Air Drive

Air Drive Section

Dry, filtered compressed air at 5.2 kg/cm² (min. supply: 6 kg/cm²) drives the Haskel booster pump. Includes a front-panel drive air regulator for stepless output pressure control, and a drive air open/close valve to start and stop the pump.

5.2 kg/cm² · 60 SCFM · −40°C DPT · 40 Micron Filtration

Section · B | Boosting

Hydraulic Boosting Section

Haskel air-driven intensifier pump boosts inlet water from supply pressure to 350 bar (10,000 PSI). A high-pressure gauge on the outlet monitors delivered pressure in real time. Output pressure tracks the drive air regulator setting proportionally.

0–350 bar · 0–10,000 PSI · High-Pressure Gauge · Water

Section · C | Filling & Flushing

Filling & Air Flushing Section

Controls filling of the test article from the hydraulic inlet tank and provides an air flushing circuit to purge the high-pressure lines after testing. Prevents residual water from remaining in the circuit between test runs.

Hydraulic Inlet Line · Air Flushing · Circuit Purge

Image Gallery

The bench, three views.

Photo documentation of the installed test bench — portable trolley assembly, Haskel pump, air drive panel, high-pressure connections, and gauge cluster.

Fig · 03 3-view photo documentation · factory installation · Neometrix Noida

Key Features

Engineering highlights.

Design features that define performance, safety, and ease of operation for high-pressure nozzle and hose testing.

Feature · 01

Air Drive Section

Dry, filtered compressed air supply at 5.2 kg/cm² drives the Haskel intensifier. Front-panel regulator allows the operator to set and vary output test pressure continuously. Drive air open/close valve provides instant pump start/stop without electrical intervention.

Feature · 02

Hydraulic Inlet Line

Dedicated inlet line from the hydraulic tank supplies water to the Haskel pump at the correct inlet pressure and flow rate. Tank capacity is sized as required by the test programme. Inlet filtration protects pump seals and check valves.

Feature · 03

Hydraulic Boosting Section

Haskel air-driven intensifier pump delivers output water pressure tracking the drive air regulator setting. High-pressure gauge on the outlet monitors delivered pressure. Working pressure range: 0–10,000 PSI (0–350 bar).

Feature · 04

Filling Section

Controlled filling of the test article (spray nozzle, hydraulic hose, or pressure component) from the hydraulic circuit. Manual and/or solenoid valves manage fill sequence and pressurisation rate to protect the test article from pressure shocks.

Feature · 05

Air Flushing Section

Post-test air flushing circuit purges residual water from high-pressure lines and the test article. Prevents corrosion of hose ends and nozzle bores, and prepares the circuit for the next test article without residual water contamination.

Feature · 06

Portable 4-Wheel Trolley

The complete bench is mounted on a heavy-duty 4-wheel trolley for easy relocation within production bays and test cells. No lifting equipment required. All services (compressed air inlet, water inlet, test outlet) connect via quick-release couplings.

Specifications

Full technical parameters.

Key system parameters for the standard NMX-SDNT-350 configuration. Custom pressure ranges and fluid types available on request.

System Type	Spray Dryer Nozzle Test Bench — Air-Driven High-Pressure
Model Reference	NMX-SDNT-350
Machine Pressure Range	0–10,000 PSI (0–690 bar rated) · Working Test Pressure: up to 350 bar
Working Media	Water (standard) · Other compatible fluids available on request
Drive Medium	Dry & filtered compressed air or nitrogen
Drive Air Pressure	Minimum 6 kg/cm² · Operating: 5.2 kg/cm²
Drive Air Flow	60 SCFM
Drive Air Purity	40 Micron filtration · DPT: −40°C (customer scope)
Pump Type	Haskel air-driven hydraulic intensifier pump
Hydraulic Inlet Tank	As required by application
Hydraulic Fluid Purity	As per application requirement
Outlet Gas Flow Rate	Variable — as per test requirement
Mobility	Portable — mounted on 4-wheel heavy-duty trolley
System Sections	Air Drive Section · Hydraulic Boosting Section · Filling Section · Air Flushing Section

Applications

Where it runs.

Food processing, chemical, pharmaceutical, and industrial sectors — wherever spray dryer nozzles require qualification testing, and wherever hydraulic hoses and pressure components need proof or burst testing at high pressure.

A · 01Proof pressure and burst testing of spray dryer atomising nozzles

A · 02Leak testing of hydraulic hoses at rated and over-pressure conditions

A · 03Burst test qualification of hydraulic hose assemblies

A · 04Impulse testing machine for hydraulic hoses (with adaptation)

A · 05Proof pressure testing of high-pressure fittings, connectors, and manifolds

A · 06In-process and end-of-line QC for spray nozzle manufacturers

A · 07Maintenance and recertification of high-pressure spray system components

A · 08Field-portable pressure testing where no electrical supply is available

A · 09R&D and prototype qualification of new nozzle designs at operating pressure

In Depth

The complete technical read.

Engineering narrative for buyers and test engineers who want the full picture before specifying a high-pressure nozzle test system.

Why air-driven intensifier pumps for nozzle testing

Spray dryer nozzles and hydraulic hoses must be tested at pressures significantly above their working pressure to verify structural integrity, seal integrity, and absence of manufacturing defects. These test pressures — typically 1.5× to 4× working pressure — often exceed 350 bar for modern high-pressure spray systems.

Generating 350 bar with a conventional electric-motor-driven pump requires a substantial motor, VFD, and dedicated high-pressure pump set. An air-driven intensifier (Haskel-type pump) achieves the same output using only compressed air — which is already available in almost every manufacturing facility. The pressure amplification ratio of the Haskel pump converts available air supply pressure (5–7 kg/cm²) into hydraulic output pressure proportional to the pump's area ratio.

Air drive section in detail

Drive air regulator

The front-panel drive air regulator controls the air pressure delivered to the Haskel pump's air cylinder. Because output hydraulic pressure tracks drive air pressure through the pump's fixed amplification ratio, the regulator effectively sets the test pressure. Rotating clockwise increases drive air pressure and therefore increases output hydraulic pressure; anticlockwise reduces it. This gives the operator complete, stepless control of test pressure without any electrical or programmable components.

Drive air open/close valve

A dedicated drive air isolation valve starts and stops the Haskel pump instantly. Opening the valve allows air to cycle the pump; closing it stops the pump while holding the downstream hydraulic pressure (the Haskel pump is self-sealing when stopped). This valve is the primary operational control during a test cycle.

Hydraulic boosting section

The Haskel air-driven pump receives water from the hydraulic inlet tank at supply pressure and delivers it at the regulated test pressure. A high-pressure gauge on the outlet circuit shows delivered pressure directly, allowing the operator to confirm that the required test pressure has been reached and is stable before starting the test dwell period.

The working pressure range of the system is 0–10,000 PSI (0–690 bar rated). The standard operating test pressure is up to 350 bar for this configuration; higher-rated configurations are available with alternative Haskel pump models.

Filling, flushing, and portable operation

The filling section manages controlled pressurisation of the test article. After the test, the air flushing circuit purges residual water from the high-pressure lines and the test article interior, preventing corrosion between test runs and preparing the circuit for the next test article.

The entire bench is mounted on a 4-wheel portable trolley. This allows the bench to be wheeled to the test article — a critical feature in production environments where large spray dryer assemblies cannot be moved to a fixed test station.

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What is the maximum test pressure?

The standard working test pressure is up to 350 bar. The system's pressure rating is 0–10,000 PSI (approximately 690 bar). Custom configurations with higher-rated Haskel pumps and fittings are available for applications requiring pressures above 350 bar.

Q · 02 What compressed air supply is needed?

Minimum supply pressure is 6 kg/cm². Operating pressure is 5.2 kg/cm². Required flow is 60 SCFM of dry, filtered compressed air or nitrogen. Air purity must be 40 micron filtration with a dew point of −40°C (dew point conditioning is customer scope).

Q · 03 Can the bench be used for fluids other than water?

Water is the standard test fluid. The Haskel pump and high-pressure fittings can be configured for other clean hydraulic fluids, light oils, or process liquids at order stage. Contact us with your specific fluid requirement for compatibility review.

Q · 04 Can it be adapted for hydraulic hose impulse testing?

Yes. The bench can be designed and configured as an impulse testing machine for hydraulic hoses with the addition of a cycling valve and control circuit. Specify your impulse test requirement (pressure range, cycle frequency, number of cycles) at enquiry stage.

Q · 05 Is the system customisable?

Fully. Neometrix can customise test pressure range, fluid type, number of test outlets, instrumentation level (manual gauges to digital DAQ), trolley dimensions, and connection types to match your application. Contact us with your test requirements for a tailored proposal.

Q · 06 What after-sales support is available?

Neometrix provides installation, commissioning, operator training, preventive maintenance, and on-site service. Standard 12-month warranty on manufacturing defects. Annual maintenance contracts and remote support available post-warranty.

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