Sany Piping-Pressure Measurement

The Sany Piping-Pressure Measurement is a complete OEM hydraulic pressure monitoring assembly that provides accurate, real‑time pressure readings for diagnostic and operational purposes on Sany heavy truck cranes, all‑terrain cranes, and large excavators.

This Sany Piping-Pressure Measurement integrates a precision pressure measuring pipe, two high‑quality pressure gauges, and a pipe connector into a single, factory‑matched assembly. When you need authentic replacement components, trust Sany Parts to deliver factory-original quality and precise fitment.

The Sany Piping-Pressure Measurement is specifically designed for Sany STC‑series and SAC‑series cranes, providing operators and maintenance personnel with a convenient, leak‑free interface for monitoring hydraulic system pressure, enabling early detection of pump wear, valve leakage, and filter blockage.

Sany Piping-Pressure Measurement — OEM hydraulic pressure monitoring assembly for Sany heavy truck cranes and all‑terrain cranes

What is the Sany Piping-Pressure Measurement?

The Sany Piping-Pressure Measurement is a complete OEM hydraulic pressure monitoring assembly that provides accurate, real‑time pressure readings for diagnostic and operational purposes on Sany heavy lifting equipment. This assembly enables operators and maintenance personnel to monitor system pressure, detect developing issues, and optimize machine performance.

The Sany Piping-Pressure Measurement comprises four precision‑engineered components that function as an integrated diagnostic interface. The pressure measuring pipe (60029802) is the primary sensing element. Two pressure gauges (B250100000110, B250100000108) provide visual pressure readings. A pipe connector (A22990002559) ensures a leak‑tight interface to the hydraulic system.

The Sany Piping-Pressure Measurement is critical for hydraulic system health and troubleshooting. It allows technicians to check pump output pressure, valve spool leakage, and cylinder internal bypass without disconnecting hoses. The dual‑gauge configuration enables simultaneous monitoring of two pressure points, such as supply and return, or pump and pilot pressure.

This assembly is a direct replacement for worn or damaged pressure measuring lines on Sany STC‑series and SAC‑series cranes, as well as large excavators. By using this genuine assembly, you ensure that the pressure ratings and connection threads match factory specifications, eliminating measurement inaccuracies and potential leak points.

Product Parameters of Sany Piping-Pressure Measurement

Technical specifications: The Sany Piping-Pressure Measurement is designed for a maximum operating pressure of 40 MPa (5,800 psi), exceeding typical crane system pressures. The pressure measuring pipe (60029802) is manufactured from cold‑drawn seamless steel with a zinc‑nickel coating for corrosion resistance.

The two pressure gauges (B250100000110, B250100000108) feature 100 mm dial faces, glycerin‑filled cases for vibration damping, and dual‑scale readings (MPa/psi). The gauges are rated for accuracy of ±1.6% of full scale and are temperature‑compensated for consistent readings across a wide ambient range.

The pipe connector (A22990002559) is a zinc‑nickel plated steel fitting with a 24° metal‑to‑metal sealing cone, compatible with 12 mm steel tubing. All components are manufactured under ISO 9001:2025 certification and are 100% traceable to original production batches. The assembly has been validated on Sany STC and SAC series cranes, demonstrating a field service life exceeding 8,000 operating hours when properly maintained.

Why Choose Our Sany Piping-Pressure Measurement?

Complete 4‑Component OEM Kit — No Missing Parts: The Sany Piping-Pressure Measurement includes the pressure measuring pipe, two gauges, and the pipe connector as a single, factory‑matched assembly. This eliminates compatibility problems that arise from sourcing individual components from different suppliers, ensuring accurate pressure readings and leak‑free connections.

Dual‑Gauge Configuration for Comprehensive Diagnostics: The Sany Piping-Pressure Measurement includes two glycerin‑filled pressure gauges, allowing simultaneous monitoring of two critical pressure points. This enables technicians to compare supply and return pressures, detect valve leakage, and identify pump wear without time‑consuming gauge swapping.

Vibration‑Resistant Gauges for Accurate Readings: The Sany Piping-Pressure Measurement uses glycerin‑filled pressure gauges that dampen vibration and pulsation, providing stable, easy‑to‑read pressure indications even on high‑vibration cranes and excavators. This ensures accurate diagnostic data and reduces operator eye strain.

Fleet‑Proven Reliability and Comprehensive Warranty: The Sany Piping-Pressure Measurement is standard equipment on Sany STC‑series and SAC‑series cranes in over 80 countries. Fleet data shows that genuine Sany pressure measurement assemblies deliver an average service life exceeding 8,000 hours—three times longer than generic aftermarket assemblies—while eliminating gauge failure and leakage incidents. The assembly is backed by a 24‑month manufacturer’s warranty covering pipe cracking, gauge inaccuracy, and connector leakage. Volume pricing, consignment stock, and global technical support are available for large fleets.

What are the Routine Maintenance Considerations for the Sany Piping-Pressure Measurement?

Daily visual inspection before operation: Before each shift, inspect the Sany Piping-Pressure Measurement for visible oil leaks around the connector, pipe, and gauge fittings. Check that both gauges are securely mounted and that the dial faces are free of cracks or fogging. Look for any signs of chafing or abrasion on the pressure measuring pipe. Any external drip indicates a loose fitting or damaged seal and requires immediate attention.

Connector torque check — every 500 operating hours: Using a calibrated torque wrench, verify the torque of the pipe connector (A22990002559) to the manufacturer specification (typically 25‑30 Nm for M12 fittings). Mark the connector after torquing for quick visual verification. If the connector is loose, replace the sealing ferrule before reassembly—never reuse a compressed ferrule.

Gauge accuracy check — every 1,000 operating hours: Test the pressure gauges (B250100000110, B250100000108) by comparing readings against a calibrated reference gauge. If either gauge shows a deviation of more than 2% of full scale, replace the gauge immediately. Inspect the gauge lenses for scratches or clouding that could affect readability. Replace any gauge with a damaged lens.

Preventative replacement schedule — every 4,000 hours or 2 years: For high‑use cranes and excavators, Sany recommends a full replacement of the Sany Piping-Pressure Measurement every 4,000 operating hours or 2 years. Replace the pressure measuring pipe, both gauges, and the pipe connector as a set. Even if no visible wear is apparent, internal fatigue and seal degradation can occur without warning. Keep a detailed maintenance log tracking torque values and gauge accuracy results. By following this proactive schedule, the Sany Piping-Pressure Measurement can reliably exceed 8,000 operating hours.

The pressure measuring pipe (60029802) is the primary sensing element of the Sany Piping-Pressure Measurement. This pipe is manufactured from cold‑drawn seamless steel with a precision‑machined bore that ensures accurate pressure transmission. The pipe is zinc‑nickel coated to resist corrosion and is designed to withstand the full operating pressure of the hydraulic system without deformation.

The two pressure gauges (B250100000110, B250100000108) are glycerin‑filled to dampen vibration and pulsation, providing stable, easy‑to‑read pressure indications even on high‑vibration cranes and excavators. The gauges feature large dials with clear markings, allowing operators to quickly assess system pressure from a distance. The glycerin filling also prevents internal condensation, ensuring long‑term accuracy in humid environments.

The pipe connector (A22990002559) is a critical sealing component that ensures a leak‑free interface between the pressure measuring pipe and the hydraulic system. This connector features a 24° metal‑to‑metal sealing cone that creates a positive seal without the need for gaskets or sealants. The connector is zinc‑nickel plated for corrosion resistance and is designed for easy installation and removal.

For Sany cranes and excavators operating in extreme cold climates (below -25°C), special considerations apply to the Sany Piping-Pressure Measurement. The glycerin in the gauges may become more viscous, causing slower needle response; allow the machine to idle for 10‑15 minutes before relying on pressure readings. The O‑ring seals in the connector may become harder; check for leakage after the first cold cycle. Use low‑viscosity hydraulic fluid (ISO VG 22) to ensure accurate pressure readings during cold starts.

The Sany Piping-Pressure Measurement is also available as part of a complete hydraulic diagnostic kit, which includes the pressure measurement assembly, a set of test hoses, and a carrying case. Sany recommends this complete‑kit approach for maintenance teams to ensure consistent, accurate pressure measurements across all hydraulic circuits. By using the genuine pressure measurement assembly as the connection point, technicians can quickly diagnose pump output, valve spool leakage, and cylinder internal bypass without disconnecting hoses.

Fleet managers using this strategy report a 50% reduction in hydraulic system diagnosis time and a 40% reduction in total hydraulic maintenance costs over the equipment’s life. Contact our parts specialists through the Get Quotation button above for custom kit configurations tailored to your fleet’s specific needs.