31Q6-20340 31Q6-20320 Hydraulic Pilot Element PT23090-MPG 55D010BNHC

Applications:

BOBCAT  T 2556T 2556T 2566T 2566T 3071T 3071T 35.105 LT 35.120 38.70 HFTL 38.70 HFTL 43.80TL 43.80TL 43.80 HFTL 43.80 HF V-DriveTL 470TL 723TL 923
CHALLENGER  1038 Gen11038 Gen21038 CVTMT 665 BMT 665 B CVTMT 675 DMT 943TG 7300TG 8300TG 8400
CLAAS  AXOS 310AXOS 7055SCORPION 9040SCORPION 9055
DOOSAN DAEWOO  DL 200-3DL 300-3DL 300-5DL 350-3DL 350-5DL 450-5

FENDT  1038 Vario Gen21038 VARIO936 Vario Gen6936 Vario Gen7936 VARIO SCR936 VARIO SCR939 Vario Gen6939 Vario Gen7939 Vario S4939 Vario Gen6942 Vario Gen7
GROVE  GMK 4100 L-1GMK 4100 L-1 GMK 6400-ROB V0/V1GMK 6400
HYUNDAI  HL 760-9HL 760-9AHSL 650-7AHW 140 AR 320 LC-9R 320 NLC-9R 330 LC-9AR 330 LC-9SR 380 LC-9R 380 LC-9AR 380 LC-9 MHR 430 LC-9AR 480 LC-9R 480 LC-9AR 500 LC-9R 520 LC-9R 520 LC-9AR 800 LC-9

Professional 31Q6-20340 31Q6-20320 Hydraulic Pilot Element PT23090-MPG 55D010BNHC

Q: What is a pilot filter?

Pilot filter is a high-precision filtering device dedicated to the pilot control circuit of hydraulic systems. Its function is to intercept micron level pollutants, ensure the cleanliness of the pilot oil, and prevent precision valve core jamming or signal distortion. ‌‌

Core Definition and Function

• Position: Connected in series at the front end of the hydraulic system pilot oil circuit, independent of the main oil circuit filtration system.
• Purpose: To protect sensitive components such as proportional valves, servo valves, pilot valves, etc., ensure accurate transmission of operating instructions, and avoid action delay or misoperation.
• Key indicators: The filtration accuracy usually reaches 3 μm-10 μm, and the oil cleanliness needs to be maintained within NAS level 8, with low pressure drop characteristics to prevent affecting response speed. ‌‌

Working principle and structural characteristics

• Filtering mechanism: The oil flows through the filter element (mostly made of fiberglass), intercepting metal debris, gum, and external invading particles.
• Safety design: It is often equipped with a bypass valve and a blockage indicator.
• Environmental adaptation: The shell has high pressure resistance, the sealing material is compatible with various hydraulic oils, and is suitable for high-frequency pulsating working conditions. ‌‌

Application scenarios and maintenance

1. Typical equipment: excavator PPC control system, hydraulic support, machine tool servo mechanism, industrial gearbox control circuit, etc.
2. Maintenance points: Regular replacement is required. If the filter element is clogged and not dealt with in a timely manner, it may cause the main valve response to fail or even the whole machine to lose control. ‌‌

In short, it is the "neuroimmune defense line" of hydraulic systems, which plays a decisive role in the accuracy and safety of system operation. ‌‌

Q: What is a filter element?

Filter element is the "filter" in the automobile, mainly used to block various impurities, protect the engine and clean air inside the car. It is usually installed in a filter, like a "mask" for a car. ‌‌

🚗 What are the filter elements in the car

There are four common types: air filter to filter intake dust, oil filter to filter dirt in engine oil, fuel filter to filter impurities in gasoline, and cabin air filter to filter the air entering the car. ‌‌‌

🛠️ What are their uses

The function is to intercept impurities, prevent dust, iron filings, etc. from entering the engine cylinder and causing wear, while allowing passengers in the car to breathe cleaner air. Dirty filter elements can affect power, increase fuel consumption, and even cause the air conditioning to not cool down. ‌‌‌