Please Choose Your Language
Please Choose Your Language
| Quantity: | |
|---|---|
Indicator is a critical core status indication component for marine equipment systems. Made of high-quality corrosion-resistant and vibration-resistant materials, it clearly displays operating parameters and working states of onboard equipment to support real-time monitoring and fault judgment. It features precise dimensional accuracy, stable structural performance and excellent fatigue resistance, suitable for routine servicing, shipyard overhaul and fault repair under marine harsh working conditions.
A well-matched indicator stabilizes equipment monitoring performance, prevents status misjudgment and operation failure, reduces component failure risks and equipment downtime, and ensures efficient and reliable operation of marine equipment systems. Please provide equipment model, specifications and part number before ordering to confirm compatibility.
The PC2-5 Indicator is a precision cylinder pressure monitoring and indicating core component exclusively developed for PIELSTICK PC2-5 series medium-speed marine main propulsion diesel engines. As the key terminal element of the engine combustion condition monitoring system, this integrated indicator assembly consists of a valve body, spool assembly, pressure transmission structure, sealing elements and connecting fittings. Mounted on the cylinder head indicator port, it collects real-time in-cylinder combustion pressure data, draws indicator diagrams, and verifies fuel injection timing and combustion efficiency. It serves as the core detection component for engineers to judge engine operating conditions, diagnose combustion faults and calibrate power output.
Under long-term harsh marine operating conditions including continuous high-temperature high-pressure gas impact inside cylinders, carbon deposit accumulation, engine room salt-fog corrosion and persistent engine vibration, the indicator will gradually suffer from sealing surface aging, spool jamming, pressure transmission distortion, reading deviation and leakage. A degraded or faulty indicator cannot accurately feedback cylinder combustion status, leading to missed abnormal condition warnings, unbalanced combustion, power attenuation, increased fuel consumption and even hidden damage to internal cylinder components. Timely replacement of standard-spec PC2-5 indicators restores OEM-level pressure detection accuracy and ensures the accuracy and reliability of engine condition monitoring.
Precision-manufactured PC2-5 indicators maintain accurate pressure response and stable reading consistency under full-load, variable-load and transient working conditions. The high-precision spool sealing structure ensures zero-leakage pressure transmission, truly restoring the actual combustion pressure curve inside the cylinder and providing reliable data basis for combustion optimization and fault diagnosis. The excellent anti-vibration performance and anti-carbon deposit design reduce daily maintenance frequency and adapt to long-term continuous navigation conditions.
Through accurate cylinder pressure monitoring, this component helps engineers grasp the engine combustion status in time, optimize fuel injection timing and air-fuel ratio, effectively reduce fuel consumption and carbon deposit formation, and avoid common faults such as abnormal peak pressure and delayed combustion. It greatly improves the reliability and economy of engine operation, and provides core monitoring guarantee for power safety during ocean-going navigation.
The PC2-5 indicator body adopts high-temperature corrosion-resistant chromium-molybdenum alloy steel, specially customized for cylinder high-pressure detection conditions of marine diesel engines. Through integral forging, solution treatment and stabilization tempering, the finished component achieves excellent comprehensive mechanical properties including high high-temperature strength, outstanding creep resistance and superior corrosion resistance, and can withstand periodic high-temperature gas impact and salt-spray environment erosion inside the cylinder for a long time.
The spool and sealing end faces are precision ground with ultra-hard wear-resistant alloy, featuring excellent erosion resistance and anti-carbon deposit adhesion performance, ensuring sealing accuracy and pressure response sensitivity after long-term use. The internal pressure transmission spring adopts fatigue-resistant high-temperature spring steel to maintain stable elastic characteristics and action consistency. All sealing elements are made of high-temperature, gas-corrosion resistant marine-grade composite materials, maintaining durable sealing performance under alternating temperature and pressure conditions. The entire production process strictly complies with OEM technical standards and universal marine industry specifications.
Quantified Marine-Grade Performance Parameters
表格
Parameter | Specification | Test & Implementation Standard |
|---|---|---|
Base Material | High-temperature chromium-molybdenum alloy steel | ISO 683-17:2014 Marine high-temperature steel standard |
Rated Working Pressure | Up to 150bar, 200bar peak pressure resistant | Marine diesel engine cylinder pressure test |
Temperature Resistance | Continuous 550°C gas impact resistance | High-temperature thermal cycle testing |
Pressure Measurement Accuracy | ≤±1% full scale deviation | Precision pressure calibration test |
Sealing Performance | Zero leakage under 1.5× rated working pressure | 30-minute constant pressure tightness test |
Service Lifespan | 8,000+ hours continuous operation | Long-term vessel field operation verification |
Wear & Corrosion Resistance | 40% longer service life than ordinary indicators | Comparative high-temperature erosion test |
Compliance Standard | Universal marine industrial manufacturing specifications | General marine diesel engine industry norms |
All PC2-5 indicators are precisely machined and inspected in strict accordance with OEM engineering drawings and marine heavy-duty component standards. Key dimensions including interface thread specification, sealing surface flatness, spool coaxiality and stroke tolerance are controlled within micron-level accuracy. The sealing end face undergoes ultra-precision grinding and mirror finishing to ensure leak-free fitting and guarantee the authenticity and accuracy of pressure transmission.
Every finished product undergoes strict full-process inspections before delivery, including full-dimensional geometric tolerance verification, normal temperature sealing leakage test, high-temperature pressure cycle test and pressure indication calibration test. All installation interfaces and assembly dimensions fully conform to original equipment standards, supporting direct drop-in replacement without on-site fitting, drilling or secondary processing, which greatly improves main engine overhaul efficiency and post-maintenance operational stability.
MAIN ENGINE | MAN B&W | S26MC,L/S35MC,L/S42MC,L/S50MC,L/S60MC,L/S70MC,L/S80MC,L/S90MC,S46MC-C,S50MC-C,S60MC-C,S70MC-C,S80MC-C,S90MC-C,K90MC-C,K98MC-C,K/L45GF(CA),55GF(CA),67GF(CA),80GF(CA),90GF(CA) |
WARTSILA | 6L20,9L20,8L32,R22,R32,L20,L32 | |
PIELSTICK | PC2-2,PC2-5,PC2-5L,PC2-5V,PC2-6,PA4,PA5,PA6 | |
HANSHIN | EL30-44,ELS-35,44,LH-28G,LU24-54,LUN28AR(G),LUS24-58,LF46-58 | |
NIIGATA | 16HS,16X,18CX,19HX,20AX,25BX,25CX,26AFTE,26KGHS,28AFTE,28BX,28KGHS,31EZ,31X,32CLX,34AFTE | |
SULZER | RTA38,RTA48,RTA52,RTA58,RTA62,RTA68,RTA72,RTA76,RTA84,RL(A/B)56,RL(A/B)66,RL(A/B)76, RL(A/B)90,RND68,RND76 | |
AKASAKA | A31,A34,A38,A41,A45,AH25,AH27,AH28,AH30,AH38,AH40,K28,K31,DM28FD,DM38FD,DM40FD,DM51SS | |
MITSUBISHI | UEC33LSE,UEC37LA,UEC45LA,UEC50LS,UEC52LA,UEC52LS,UEC60LS,UET45/75C,UET45/80D, UET52/90D,UET52/105H | |
AUX.ENGINE | MITSUBISHI | S6A,S6B,S6R,S6N,S16N,S16R,S12R,SA2 |
MAN B&W | 16/24,20/27,21/31,23/30,25/33,28/32,32/40,48/60,58/64 | |
YANMAR | HAL,KL,KDL,KFL,RAL,MAL,S165,S185,M200,M220,T220,T240,T260,Z280,N165,N18,N21,N165,N260,N280, N330,NY16,EY18,EY22,EY26,4CHL,6CHL | |
DAIHATSU | DK20,DK26,DK28,DK32,DL16,DL19,DL20,DL22,DL24,DL26,DL28,DL32,DS18,DS19,DS22,DS26,DS28,DS32, DS40,PK14,PK16,PL24,PL26,PS18,PS20,PS22,PS26,PS30 |
We supply a full series of matching marine engine spare parts for complete vessel overhaul, including indicator valves, pressure sensors, sealing gaskets, indicator tubes, pressure gauges, cylinder head spare parts, fuel system components, piston connecting rod assemblies and overhaul gasket kits, providing one-stop procurement solutions for ship repair and fleet maintenance.
Each batch of PC2-5 indicators undergoes full-process professional inspection, including raw material spectrum composition analysis, metallographic structure detection, full-dimensional geometric tolerance inspection, sealing leakage test, pressure calibration test and high-temperature fatigue test. All products pass 1.5× working pressure 30-minute pressure holding test. The batch qualified rate remains stable at 99.7% according to 2025 production data. All inspection records are archived for customer audit and dry-dock inspection reference.
Manufactured in strict compliance with universal marine diesel industry norms and OEM technical specifications, this indicator assembly undergoes comprehensive precision factory testing and strict performance screening. It fully satisfies the operational demands of daily vessel navigation, offshore voyages and conventional commercial ship overhauls, serving as a high-quality matching replacement part for marine engine routine maintenance and overhaul projects.
The indicator is a core wearable precision component of the PC2-5 main engine combustion monitoring system. Long-term high-temperature gas erosion, carbon deposit accumulation, salt-fog corrosion and mechanical vibration will cause sealing performance degradation, pressure reading deviation, spool jamming and slow response. Replacement is required during major overhauls when pressure indication error exceeds the allowable range, leakage signs appear or spool action is stuck. Installing brand-new standard PC2-5 indicators restores OEM-level pressure detection accuracy, ensures the accuracy of combustion condition monitoring, and provides reliable data support for engine performance calibration and fault diagnosis.
Regular inspection and calibration of indicators are essential items for daily vessel maintenance and dry-dock overhauls. Vessels operating in high-salt sea areas and using low-grade bunker fuel face faster carbon deposit and corrosion of indicators. Timely replacement of qualified performance indicators effectively avoids monitoring failure and condition misjudgment, prevents secondary damage to engine components caused by abnormal combustion, and ensures stable, continuous and efficient main engine operation during long-distance navigation.
Which engines are compatible with this PC2-5 indicator?
It is specially designed for PIELSTICK PC2-5 series marine main engines and widely compatible with various mainstream marine main and auxiliary engines listed above. Please provide the engine model or original part number for precise confirmation.
What is the delivery time?
Standard models are in stock with 7–10 working days delivery. Custom non-standard specifications take 7–15 working days.
Can you customize according to drawings or samples?
Yes, OEM customization and non-standard processing are available. All customized parts undergo full-dimensional testing and pressure calibration inspection before shipment.
What is your warranty policy?
12-month warranty for material and manufacturing defects. Professional technical support including installation guidance and pressure calibration guidance is provided.
What is the MOQ and packaging?
MOQ is 1 unit for stock items. Bulk discounts are available for fleet orders. Standard export packaging adopts anti-rust treatment, moisture-proof wrapping and plywood crating suitable for ocean freight.
