NMX-HCV-350 / Rev 04 / DGAQA · DRDO · CE Marked / Noida · India 2026 · Product Page

NMX-HCV-350

Hydraulic valve validation. 350 kW.

Name: Automated Hydraulic Control Valve Test Bench
Brand: Neometrix

End-of-line and R&D testing of mobile and industrial hydraulic control valves. Flow up to 400 LPM, pressure up to 420 bar. Multi-channel instrumentation — every unit under test produces a time-history trace you can review months later.

Request proposal Test capabilities

Automated Hydraulic Control Valve Test Bench 350 kW — Neometrix factory floor, Noida

Fig · 01 Factory installation — 350 kW / 400 LPM / 420 bar envelope

Sys.Power

350kW

Max.Flow

400LPM

Max.Pressure

420bar

Reservoir

1200L

Op.Temp

20–75°C

Dossier

Twelve slides. The whole platform.

Architecture, valve coverage, nine test modes with real acquired data, platform positioning — the complete technical story from the product brochure. Navigate with the arrows, jump with the thumbnails, or download the full PDF below.

01 / 12

Download Full Dossier (PDF)

Overview

The control authority of the machine.

In mobile and industrial hydraulics a valve is not "just a component" — it is the control authority of the whole machine. Flow metering accuracy decides whether an excavator feels smooth or jerky; leakage decides whether a system holds load safely; response time decides whether a closed-loop controller behaves or hunts.

Hydraulic Control Valve Test Bench — 3/4 angle with integrated control cabinet

Fig · 02 Enclosure + electrical cabinet, factory configuration

A serious valve test stand must do more than "make pressure and show a gauge." It has to reproduce real operating conditions, measure the right signals with repeatable automation, and produce records engineering and quality teams can trust.

Neometrix's Automated Hydraulic Control Valve Test Bench is a universal, automated rig for validating mobile sectional valves and industrial electrohydraulic / proportional valves — combining high hydraulic power, multi-channel instrumentation, and software-driven test sequencing with data logging.

A universal, automated rig for validating the full lifecycle of hydraulic control valves — from incoming inspection to post-field troubleshooting.

The platform supports incoming inspection, calibration and tuning, performance characterisation, endurance verification, and post-failure troubleshooting — all through repeatable sequences with archived datasets. Compare valve-to-valve variation across batches, qualify new spool/sleeve combinations, or prove compliance to a customer specification months after the unit ships.

Architecture

A 350 kW powerhouse, annotated.

Multi-motor, multi-pump architecture generating high flow, stable pressure control, and repeatable ramps for dynamic tests. Small stages run conditioning and low-flow work; larger stages scale up for high-flow or high-load events — without forcing the system to operate at an extreme point for every test.

350 KW Valve Test Stand — front elevation with rated label and dual access doors

Fig · 03 Front elevation · rated 350 kW, twin access doors for UUT loading

Sub · 01

Conditioning

Warm-up to defined temperature window; bleed/flush sequences prevent false instability from entrained air.

Sub · 02

Fixture Flex

Cartridge, subplate, manifold mounts. Fast changeovers between valve families reduce plumbing-error risk.

Sub · 03

Filtration

Pressure, return, and drain filtration aligned with production-grade cleanliness requirements.

Sub · 04

Thermal

Plate-type cooler on 1200 L reservoir holds the 20–75 °C window across long duty cycles.

Coverage

Configured for virtually any architecture.

With flexible fixtures and plumbing, the bench supports a broad envelope of mobile and industrial valve designs. Each family ships with a preloaded test protocol that can be extended, combined, or customised for your production cadence.

The bench can be tuned for directional, pressure-control, and flow-control valve architectures — covering cartridge, subplate, and manifold-mounted designs including common variants such as relief, reducing, sequence, counterbalance / load-holding, and priority flow control valves. Test protocols ship preloaded for the six valve families below; extension to adjacent architectures is a matter of fixture and routing, not core platform modification.

Test Capabilities

Nine tests. One platform. One traceable dataset.

The bench supports static, quasi-static, and dynamic validation. Test modes compose into programmed sequences — warm-up → bleed → ΔP mapping → hysteresis sweep → leakage → dynamic response → endurance → post-endurance comparison. Each graph below is real acquired data from the platform.

T · 01 Static

Pressure drop & flow characterisation.

Quantifies energy losses through the valve metering path. Validates whether a valve meets expected hydraulic efficiency across flow ranges — power lost to heat rather than useful work.

Sweeps flow through defined operating points; builds ΔP-vs-flow curves
Repeat runs at stabilised temperature separate true valve behaviour from viscosity
Direct comparison of spool/sleeve variants and batch-to-batch drift

Flow rate vs differential pressure characterisation curve

T · 02 Quasi-static

Hysteresis — command up & down.

Ramps command zero to max and back, logging flow against command. Reveals sticky spool behaviour, biased neutral, friction-driven nonlinearity — the driver of whether a mobile machine feels smooth or jerky.

Matches CLS180 metering-performance procedures for sectional valves
Before/after comparison when tuning deadband, flow gain, pressure gain
A single plot exposes friction that steady-state tests would miss

Hysteresis loop: Work Flow vs Command current measured on test bench

T · 03 Static

Max flow verification.

Confirms the valve reaches rated flow under specified command. Flags incorrect spool/sleeve combinations or tuning issues — a small shift in max flow often signals a real assembly problem, not a measurement artefact.

Sectional valves (CLS180 / CMA): every section meets its metering expectation
EH valves: sleeve/spool combinations define rated flow windows
Production consistency — a drift trigger before the customer sees it

Max flow verification plot from automated valve test bench

T · 04 Quasi-static

Internal & external leakage.

Leakage directly impacts load-holding safety, thermal efficiency, machine drift, and neutral stability. Post-endurance leakage comparison is one of the strongest indicators of wear or seal degradation.

External leakage (assembly integrity) and internal leakage at work ports
Neutral / position-specific leakage for fine control valves
Before / after endurance comparison reveals sub-threshold seal degradation

Voltage feedback vs flow meter plot — leakage and electrical behaviour validation

T · 05 Dynamic

Response time & dynamic behaviour.

Step and shaped commands. Measures flow / pressure response over time. Flags sluggishness, overshoot, oscillation, and instability — evidence traces that support controller tuning and field-issue diagnosis.

Step response with 10 kHz DAQ — detects rise time, overshoot, settling
Shaped command profiles for closed-loop controller tuning
Side-by-side before / after when re-tuning a controller or a spool

Dynamic response trace — command vs pressure on A1 axis

T · 06 Dynamic

Impulse & cycling.

Runs programmed pressure impulses and cycling sequences. Reveals weak points that steady-state tests miss — seal degradation, fatigue drift, recovery-stability loss — and supports event-to-event repeatability comparison.

Programmed pressure impulses up to 400 bar; repeatable across thousands of cycles
Logs P1/P2 traces to isolate main vs pilot-stage behaviour
Drift detection across cycles — pre-failure predictor

Pressure impulse test at 400 bar — P1 main and P2 cycling pressure traces

T · 07 Electrical

Pull-in current & drop-out voltage.

Confirms electrohydraulic actuation — especially important for coils, drivers, and integrated electronics. In production, isolates whether an issue is hydraulic (spool friction, contamination) or electrical (coil, driver, wiring, shielding).

Automated pull-in / drop-out characterisation with voltage-feedback capture
Field troubleshooting — pinpoints intermittent electrical faults
PWM, CAN, signal-conditioning compatibility per valve family

Pull-in current and drop-out voltage electrical behaviour trace

T · 08 Multi-section

Flow sharing & anti-saturation.

This is where a mobile-valve test stand earns its keep. When multiple sections are commanded together, the system must distribute flow correctly, maintain controllability, and avoid function "stealing" or instability.

Flow-sharing evaluations at defined pressure drops and commands
Priority vs non-priority function validation under combined demand
Ensures predictable machine motion under multi-function operation

Flow sharing plot — inlet flow vs Section 1 and Section 2 flow over time

T · 09 Stability

Pressure compensation.

Validates that a section's metered flow stays stable even as inlet or load pressure changes — critical for predictable machine motion. One of the most practical "real world" tests for mobile hydraulics.

Compensation validation by ramping pressures and recording flow variation
Replicates mid-motion actuator load changes that operators feel directly
Load-sensing (LS) valve circuits and variable-displacement pump systems

Pressure compensation plot — flow stability under varying inlet and load pressure

Automation & Data

Operator starts the sequence. The machine runs it.

PLC-based automated test sequencing removes operator variability. Multi-channel simultaneous data acquisition means every test — flow, pressure, temperature, command signals — produces a time-stamped trace reviewable months later.

Neometrix SCADA HMI — Pressure Drop Test screen showing live pump controls, flow meters, pressure sensors, and data logging

Fig · 04 Live SCADA HMI · Pressure Drop Test with live motor, pump, flow-meter and pressure-sensor telemetry

A 12-inch HMI touchscreen shows real-time dashboards; SCADA software handles data acquisition and storage. If a valve fails a criterion, engineers inspect the trace and tell instrumentation drift from a genuine defect — the difference between a quick recovery and a week of firefighting.

Every test produces a timestamped, multi-channel dataset. Flow, pressure, temperature, command signals, voltage feedback — all logged to a single time history, exportable as CSV or PDF, archivable for QA traceability months after the unit ships.

PLC + SCADA with 12″ HMI touchscreen, multi-channel DAQ
Automated PDF test reports — flow, pressure, curves, pass/fail, operator & batch
MES / ERP integration — IoT-ready, Industry 4.0 compliant
CE marked, DGAQA & DRDO accredited
Export formats: CSV, PDF, MATLAB-ready TDMS (optional)
12-month standard warranty, AMC available for long-term support

Watch

The bench in motion.

Two videos from the Noida facility. The first walks through an operator-initiated test sequence from selection to data export; the second is a factory-acceptance walk-through under customer-witness protocol.

Inside Configuration 2

350 kW build, four views.

The general-arrangement drawing for Steel-Plant Configuration 2 — rendered in isometric for operator context, with plan and elevation views for build-ready dimensioning. Five drive motors in series, a plate-type heat exchanger, return and pressure manifolds, and a dedicated test bed. Below is the exact GA the manufacturing floor builds from.

DWG No. A1811

Revision REV 03

Rated Power 350 kW

Sheet Size A3 · NTS

Isometric 3D render of 350 kW hydraulic control valve test bench showing tank, heat exchanger, filters, pressure and return manifolds, and operator at test bed

Top view of 350 kW hydraulic control valve test bench showing multi-motor plan layout with 200 kW, 55 kW, 130 kW main drives, 3.7 kW auxiliary, return line filter bank, and flow meters

Plan (Top view)

Multi-motor plan layout. Four-drive pump bank on the west side feeds the pressure manifold through the filter chain; flow meters sit inline on the east manifold.

FIG · 07bPlan · 1:25

Front elevation

Operator-facing elevation. Pressure-line manifolds sit overhead; the pump bank is accessible at floor level. Operator reach to the test bed is under 1.2 m.

FIG · 07cElev · 1:25

Side elevation

Service-side profile. Heat exchanger flush-mounted at the left; the 1200 L reservoir and pressure piping route the full length of the rig. Pump bank accessible at the base.

FIG · 07dElev · 1:25

200 kW

Main drive · primary

130 kW

Main drive · secondary

55 kW

Boost drive

3.7 kW

Auxiliary pump

0.75 kW

Return line motor

Downloads

Engineering drawings & full datasheet.

Reference dossier, three pre-built design variants for steel-plant and general industrial contexts, and the full 12-page brochure. Each is suitable for procurement review and technical pre-screening.

Dossier · 12pp

Full Product Brochure

PDF · 10.9 MB

Datasheet

General Configuration

PDF

Drawing · Design 1

Steel-Plant Configuration 1

PDF

Drawing · Design 2

Steel-Plant Configuration 2

PDF

Drawing · Design 3

Steel-Plant Configuration 3

PDF

Specifications

Capability envelope.

Reference values for a typical configuration. Final project specifications — flow, pressure, valve routing, MES / ERP integration — are customised to the application and confirmed during the design-review stage before manufacturing begins.

System Type	350 kW Automated Valve Test Stand
Max Power Consumption	~ 430 kW (reference)
Main Electrical Supply	3-phase, 440 VAC
DAQ Supply	Single-phase, 220 VAC
Operating Fluid	Hydraulic mineral oil VG-32
Operating Temperature	~ 20 °C to 75 °C
Reservoir Capacity	~ 1200 L
Cooling	Plate-type oil cooler
Pump Architecture	Variable + fixed displacement, multi-stage
Filtration	Pressure, return, and drain line
Test Envelope	Up to ~ 400 LPM · up to ~ 420 bar
Control System	PLC + SCADA, 12″ HMI, multi-channel DAQ
Compliance	CE marked · DGAQA · DRDO · IoT / Industry 4.0 ready
Supported Valves	CMA, CLS180, SiCV, Two-stage proportional (pilot + main), Size-3 & Size-5 EH

Applications

Where it runs.

Production lines, engineering labs, MRO depots — across mobile machinery, hydraulic OEM testing, aerospace, defence, oil & gas, railways, and industrial automation. One platform supporting multiple programmes in parallel.

A · 01End-of-line production testing of mobile hydraulic control valves

A · 02Performance validation of sectional valve banks in excavators & mobile machinery

A · 03Flow, ΔP, and hysteresis characterisation of electrohydraulic valves

A · 04Leakage testing for load-holding, safety, neutral stability

A · 05Dynamic response & step-response for closed-loop control

A · 06Flow sharing & anti-saturation evaluation in multi-section valves

A · 07Pressure compensation and flow stability under variable load

A · 08Pull-in current & drop-out voltage testing of coils & drivers

A · 09Endurance & pressure cycling for durability & wear assessment

A · 10R&D characterisation & calibration of cartridge, proportional, directional valves

A · 11Batch-to-batch QA comparison & process-capability studies

A · 12Failure analysis & troubleshooting of field-returned valves

In Depth

The complete technical read.

Full prose from the engineering team — for buyers and engineers who want the complete picture before the design-review meeting. Roughly a 12-minute read.

Introduction

In mobile and industrial hydraulics, a valve is not "just a component" — it is the control authority of the whole machine. Flow metering accuracy decides whether an excavator feels smooth or jerky; leakage decides whether a system holds load safely; response time decides whether a closed-loop controller behaves or hunts; and pressure drop decides whether you lose power to heat instead of useful work.

Neometrix's Automated Hydraulic Control Valve Test Bench is built as a universal, automated test rig for validating a wide range of mobile sectional valves and industrial electrohydraulic / proportional valves. It supports the full lifecycle of valve validation: incoming inspection, calibration / tuning, performance characterisation, endurance verification, and troubleshooting after field feedback — all using repeatable sequences and archived datasets.

What this machine is designed to test

Mobile valves

CMA (Thor twin spool sectional valve system)
CLS180 sectional valve system / valve banks

These valve families typically require multi-port routing, stable supply conditions, and the ability to validate behaviours that only appear when multiple functions interact (flow sharing, saturation, compensation stability). The platform is built to handle such complexity with structured procedures rather than ad-hoc manual testing.

Industrial valves

SiCV (Screw-in Cartridge Valves)
Two-stage proportional electrohydraulic directional control valves (pilot + mainstage)
Electrohydraulic directional control valves for Size 3 and Size 5 formats

Industrial valve testing emphasises repeatable command / response characterisation, fine leakage validation, calibration logic (including LVDT-based calibration where applicable), and clean dynamic response records.

With suitable fixtures and routing, the bench can be tuned for virtually any hydraulic control valve architecture — directional, pressure-control, flow-control — covering cartridge, subplate, and manifold-mounted designs including relief, reducing, sequence, counterbalance / load-holding, and priority flow control variants.

Core test capabilities

The stand is not limited to a single "pressure test." It is designed for a broad mix of static, quasi-static, and dynamic validation — endurance testing, pressure drop across flow ranges, hysteresis, high-pressure leakage, response time, max flow verification, pull-in / drop-out electrical checks, flow accuracy, flow sharing, and flow compensation. Tests combine into programmed sequences that turn test data into engineering decisions.

System architecture

1. Hydraulic power pack & flow generation

Multi-motor, multi-pump architecture generating high flow, stable pressure control, and repeatable ramps or profiles for dynamic tests. Small power stages run conditioning / low-flow tests; larger stages scale up for high-flow or high-load events. The system is never forced to run at an extreme operating point for every test type.

2. Test area interfaces & plumbing flexibility

Multiple supply and work port arrangements. Interface flexibility matters because valve testing is fixture-driven — faster changeovers mean higher throughput and less plumbing-error risk. Handles different port configurations (P/T/A/B/LS / drain), pilot supply, and section-specific valve-bank routing.

3. Electrical drive & valve actuation

Modern EH valves need more than "24 VDC" — they need correct current drive, PWM, CAN behaviours, and signal conditioning. The bench supports electrohydraulic spools, hydraulically piloted stages, and setups where actuator / control is provided externally while the bench performs controlled hydraulic loading and measurement.

4. Instrumentation, HMI & data logging

Multi-channel measurement and logging — flow, pressure, temperature, command signals — so each test produces a time history that can be reviewed, plotted, and archived for QA traceability. Proper logged traces make diagnosis fast — instability, sensor drift, a plumbing issue, or an electrical anomaly all leave distinct signatures.

End-of-line (EOL) testing for mobile OEMs

Ideal for EOL testing in mobile hydraulics manufacturing, ensuring every valve meets OEM quality standards before dispatch. Automated pass / fail testing on flow rate, pressure characteristics, leakage, actuation response. Integrates with MES and ERP systems for traceability and digital test reports — standardised test cycles with minimal operator intervention, reducing human error and improving field reliability.

Target industries & customers

Industry	Representative companies
Mobile Machinery / CE	Caterpillar, Komatsu, Liebherr, JCB, Doosan, Hyundai CE, CNH Industrial, Volvo CE, John Deere, XCMG, SANY, LiuGong
Hydraulic OEMs	Bosch Rexroth, Eaton, Parker Hannifin, Danfoss, Bucher, Walvoil, Salami, Casappa, Duplomatic
Aerospace	Safran, Liebherr Aerospace, Triumph Group, Moog, Woodward
Defence	OFB, BEML, L&T Defence, DRDO, armoured-vehicle hydraulics
Oil & Gas	Valve manufacturers & subsea equipment OEMs
Railways	Hydraulic braking & door control systems
Industrial Automation	Machine-tool, press, and injection-moulding OEMs
Green Energy / H₂	Wind turbine hydraulics, electrolyser systems

Competitive advantages

350 kW — one of the highest-power hydraulic valve test benches from an Indian manufacturer
9 test modes in one bench — ΔP, hysteresis, max flow, leakage, response, impulse, electrical, flow sharing, compensation
Multi-valve compatibility — mobile + industrial families (CMA, CLS180, SiCV, proportional, directional)
Automated, repeatable sequencing — traceable, auditable results for ISO and OEM quality systems
High flow & high pressure — up to 400 LPM / 420 bar matches real duty conditions
Industry 4.0 / IoT ready — a connected, data-driven QA platform
20+ years domain expertise — defence, aerospace, industrial hydraulics
CE marked — accepted globally
Turnkey — single vendor for design, manufacture, commissioning, training, after-sales

FAQ

Questions, answered plainly.

Q · 01 Maximum flow and pressure capacity?

Up to ~ 400 LPM and ~ 420 bar. The exact envelope is application-dependent based on valve type and test specification. Multi-channel routing supports both high-pressure and high-flow configurations in parallel.

Q · 02 Which valve types can the bench test?

Directional, pressure-control, flow-control, servo, proportional, and electrohydraulic valves — cartridge, subplate, manifold-mounted. Common variants: relief, reducing, sequence, counterbalance / load-holding, priority flow control. Mobile (CMA, CLS180) and industrial (SiCV, two-stage EH, Size-3/5 EH) all supported.

Q · 03 What tests can be performed?

Nine test modes: ΔP / flow characterisation, hysteresis, max flow verification, leakage (internal & external), response time, pressure impulse / cycling, pull-in current & drop-out voltage, flow sharing & anti-saturation, pressure compensation. All combine into programmed sequences.

Q · 04 Is it PLC and SCADA controlled?

Yes. Automated test sequences, real-time monitoring, multi-channel DAQ, time-stamped data logging. SCADA front-end on 12-inch HMI with auto-generated test reports. MES / ERP integration available.

Q · 05 Can it be customised to specific valve sizes and standards?

Fully customisable — valve size, pressure range, flow envelope, fixture tooling, electrical drive profile, protocol routing. ISO, DIN, and customer-specific acceptance criteria supported.

Q · 06 What certifications does the bench carry?

CE marked, Industry 4.0 compliant. Neometrix Defence is accredited by DGAQA and DRDO (India's apex defence QA and R&D bodies).

Q · 07 Installation, commissioning, and training?

Complete turnkey solutions — installation, on-site commissioning, operator training, after-sales support. Standard warranty included; AMC available. Spare parts support plus remote diagnostics via IoT.

Q · 08 Can we see the machine running before ordering?

Yes. We invite serious prospects to our Noida facility for Factory Acceptance Test / demonstration. A demo video is also available via the video section above.

Q · 09 Typical lead time?

Project-specific, depending on configuration and customisation. We provide a detailed project timeline after understanding your valve types, test specifications, and throughput requirements.

Q · 10 Can it handle high-cycle endurance testing?

Purpose-built for long-duration, high-cycle endurance. Thermal stability, filtration, and reservoir sizing are engineered for extended duty cycles without thermal drift or filtration-driven noise.

Q · 11 Pricing?

Project-specific based on configuration, valve types, and scope. We're happy to discuss on a call and provide a customised quotation tailored to your application.

Get in touch

Tell us the valve. We engineer the bench.

Share your valve family, production volume, pressure and flow envelope, and target throughput. Our engineering team returns a technical proposal within five working days, with a fixed delivery date and DGAQA-compliant documentation package.

Request a proposal +91 7777 876 876

Factory: E-148, Sector-63
Noida, Delhi-NCR 201301, India
Sales: +91 7777 876 876
Alt: +91 (0120) 4500-800
Email: sales@neometrixgroup.com
Hours: Mon–Sat · 08:30–17:30 IST