Yukizaki SR Pneumatic-to-Hydraulic Booster Pump HU2-2S-10012-A2

Overview

The Yukizaki SR HU2-2S-10012-A2 is a precision-engineered pneumatic-to-hydraulic pressure booster pump designed for reliable, oil-free amplification of low-pressure air or inert gas into high-pressure hydraulic output. Based on the fundamental principle of area-ratio mechanical advantage—where a large-diameter pneumatic piston actuates a smaller-diameter hydraulic plunger—the unit delivers stable, pulse-free hydraulic pressure without electrical components or lubricants in the fluid path. This architecture ensures intrinsic safety in hazardous environments (ATEX Zone 2 / Class I Div 2 compliant configurations available), eliminates risk of fluid contamination, and supports long-term operation with minimal maintenance. The HU2-2S series is part of Yukizaki’s modular SR platform, comprising 14 standardized variants differentiated by input pressure range (0.2–0.7 MPa), maximum output pressure (up to 100 MPa), stroke volume (0.8–3.2 mL per cycle), and interface specifications (NPT, BSPP, or SAE). The -A2 suffix denotes a configuration with stainless steel wetted parts (316 SS), dual-stage pressure regulation, and integrated pressure decay monitoring circuitry.

Key Features

• Robust dual-piston design with self-aligning ceramic-coated guide sleeves for >10 million duty cycles under rated load
• Oil-free, seal-less hydraulic amplification path—no risk of hydraulic fluid ingress into process media
• Integrated pressure decay detection system with analog 4–20 mA output and digital RS-485 Modbus RTU interface
• Compact footprint (240 × 160 × 210 mm) optimized for integration into automated test benches and calibration rigs
• Standard compliance with ISO 8503-2 surface roughness requirements for all machined hydraulic ports
• Configurable stroke frequency (0.5–5 Hz) via external air supply modulation; no internal electronics required

Sample Compatibility & Compliance

The HU2-2S-10012-A2 is compatible with mineral oil, synthetic ester-based hydraulic fluids, water-glycol mixtures, and deionized water—provided fluid viscosity remains within 5–40 cSt at operating temperature (5–60 °C). It is not suitable for abrasive slurries, high-vapor-pressure solvents, or fluids containing suspended particulates >5 µm. All wetted materials meet ASTM F2028-22 for biocompatibility of elastomers and ASTM B117 salt-spray resistance (1,000 hr minimum). The unit carries CE marking under Machinery Directive 2006/42/EC and PED 2014/68/EU for Category IV pressure equipment. Documentation includes full traceable material certifications (EN 10204 3.1), as-built dimensional reports, and factory hydrostatic test records at 1.5× maximum allowable working pressure (MAWP).

Software & Data Management

While the HU2-2S-10012-A2 operates autonomously without embedded firmware, its analog and digital interfaces enable seamless integration into supervisory control systems. The 4–20 mA decay signal feeds directly into PLCs or SCADA platforms for real-time leak detection and cycle validation. When paired with A&D’s optional SR-Link Gateway (sold separately), users gain access to time-stamped pressure logs, cycle-count analytics, and predictive maintenance alerts based on drift trends—fully compliant with FDA 21 CFR Part 11 audit trail requirements. All data export formats adhere to ASTM E2500-21 standards for instrument qualification documentation.

Applications

• Calibration of high-pressure transducers and deadweight testers (up to 100 MPa)
• Hydrostatic testing of aerospace hydraulic manifolds, fuel lines, and valve bodies
• Pressure cycling in automotive brake hose and accumulator qualification per SAE J188
• Static and dynamic pressure generation in metrology labs supporting ISO/IEC 17025 accreditation
• Process pressure hold testing for semiconductor wafer bonding chambers and ultra-high-purity gas delivery systems

FAQ

What is the maximum allowable inlet air pressure for continuous operation?
The rated pneumatic input pressure is 0.7 MPa (100 psi); operation above this requires derating per A&D Technical Bulletin TB-HU2-2023-04.
Can this pump be used with deionized water in cleanroom applications?
Yes—provided inlet water conductivity remains <0.1 µS/cm and particulate count is <1 particle/mL @ ≥0.5 µm (per ISO 14644-1 Class 5).
Is third-party calibration certification included with shipment?
Each unit ships with NIST-traceable as-found/as-left calibration report (per ISO/IEC 17025:2017) performed at Yukizaki’s Yokohama Calibration Center.
What maintenance intervals are recommended for industrial 24/7 operation?
Pneumatic filter elements require replacement every 6 months; hydraulic plunger seals are rated for 2 years or 500,000 cycles—whichever occurs first.
Does the -A2 variant support integration with LabVIEW or Python-based control systems?
Yes—Modbus RTU implementation conforms to Modbus Organization specification v1.1b; example drivers and API documentation are available via A&D Developer Portal.