High-Pressure Ball Valve

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CJZQ Series: CJZQ-F15F, CJZQ-F20F, CJZQ-F25F, CJZQ-H25L, CJZQ-F50L

Stainless steel (316) valve body, PTFE sealing, carbon steel valve stem; anti-corrosion and high-pressure resistant.

1. Sealing wear from abrasive fluid particles; 2. Valve core fatigue from frequent pressure cycles; 3. Corrosion of valve stem in chemical fluid environments.

1. Use filtered fluids to reduce abrasion; 2. Avoid frequent rapid switching to reduce core fatigue; 3. Apply anti-corrosion grease to the valve stem quarterly.

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KH-SAE Series: KH-SAE-J50

Carbon steel (A105) valve body, nitrile rubber sealing, alloy steel valve stem; SAE standard thread for hydraulic compatibility.

1. Thread wear from repeated installation; 2. Sealing aging from high-temperature hydraulic oil; 3. Valve stem bending from improper alignment.

1. Align precisely during installation to avoid thread damage; 2. Use compatible hydraulic oil to delay sealing aging; 3. Tighten to SAE-specified torque.

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BKH-SAE Series: BKH-SAE-J15, BKH-SAE-J20, BKH-SAE-J25, BKH-SAE-J32, BKH-SAE-J40, BKH-SAE-J50, BKH-SAE-J65, BKH-SAE-H15, BKH-SAE-H20, BKH-SAE-H25, BKH-SAE-H32, BKH-SAE-H40, BKH-SAE-H50, BKH-SAE-H65

Alloy steel (20CrMnTi) valve body, PTFE sealing, stainless steel (304) valve stem; high-pressure resistant for heavy-duty hydraulic systems.

1. Internal wear from fluid scouring; 2. Corrosion from moisture and chemical contaminants; 3. Sealing failure from debris accumulation.

1. Flush pipelines before installation to remove debris; 2. Inspect for corrosion monthly in humid environments; 3. Replace seals annually for critical applications.

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YFYQ-LF Series: YFYQ-J6LF, YFYQ-J10LF, YFYQ-J15LF, YFYQ-J20LF, YFYQ-J25LF, YFYQ-J32LF, YFYQ-H40LF, YFYQ-H50LF, YFYQ-H65LF, YFYQ-H80LF, YFYQ-H100LF

Stainless steel (316L) valve body, EPDM sealing, titanium alloy valve stem; acid and alkali resistant for chemical fluid control.

1. Sealing degradation from chemical corrosion; 2. Valve core wear from abrasive media; 3. Stem damage from improper operation.

1. Verify fluid compatibility before use; 2. Install pre-filters to reduce abrasive particles; 3. Operate the valve smoothly to avoid stem impact.

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YFYQ-LN Series: YFYQ-J6LN, YFYQ-J10LN, YFYQ-J15LN, YFYQ-J20LN, YFYQ-J25LN, YFYQ-J32LN, YFYQ-H40LN, YFYQ-H50LN, YFYQ-H65LN

Carbon steel with anti-corrosion plating, PTFE sealing, alloy steel valve stem; low-temperature resistant for cold-region applications.

1. Sealing cracking from low temperatures; 2. Plating peeling from impact; 3. Internal freezing in low-temperature environments.

1. Use in temperature ranges ≥ -20℃; 2. Protect from external impact to avoid plating damage; 3. Drain fluid when not in use in cold weather.

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YFYQ-LW Series: YFYQ-J6LW, YFYQ-J10LW, YFYQ-J15LW, YFYQ-J20LW, YFYQ-J25LW, YFYQ-J32LW, YFYQ-H40LW, YFYQ-H50LW, YFYQ-H65LW

Stainless steel (304) valve body, silicone rubber sealing, stainless steel valve stem; water-resistant for water treatment and aquatic systems.

1. Sealing aging from long-term water immersion; 2. Scale buildup on valve core; 3. Corrosion of internal parts from hard water.

1. Clean valve core quarterly to remove scale; 2. Use water treatment agents to reduce hard water corrosion; 3. Inspect seals for water swelling annually.

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QF Series: QF-G2, QF-40

Brass alloy valve body, PTFE sealing, stainless steel valve stem; compact structure for small-space installation.

1. Valve body deformation from excessive pressure; 2. Sealing wear from frequent operation; 3. Corrosion from humid environments.

1. Do not exceed rated pressure (≤40MPa); 2. Avoid unnecessary frequent switching; 3. Apply anti-rust coating to the valve body annually.

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ZY-SAE Series: ZY-SAE-J15, ZY-SAE-J20, ZY-SAE-J25, ZY-SAE-J32, ZY-SAE-J40, ZY-SAE-J50, ZY-SAE-H15, ZY-SAE-H20, ZY-SAE-H25, ZY-SAE-H32, ZY-SAE-H40, ZY-SAE-H50, ZY-SAE-H65

Alloy steel (20Cr) valve body, nitrile rubber sealing, stainless steel (304) valve stem; SAE thread for hydraulic system compatibility.

1. Thread seizure from corrosion; 2. Sealing failure from hydraulic oil contamination; 3. Valve stem wear from vibration.

1. Apply anti-seize agent to threads before installation; 2. Filter hydraulic oil to reduce contaminants; 3. Secure valve firmly to reduce vibration.

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KHBT3K-SR Series: KHBT3K-08SR, KHBT3K-10SR, KHBT3K-12SR, KHBT3K-14SR, KHBT3K-16SR, KHBT3K-20SR, KHBT3K-25SR, KHBT3K-30SR

Stainless steel (316) valve body, PTFE sealing, titanium alloy valve stem; straight-through design for low flow resistance.

1. Valve core wear from high-velocity fluid; 2. Sealing damage from debris; 3. Corrosion from chemical media.

1. Control fluid velocity within rated range; 2. Install pre-filters to block debris; 3. Verify chemical compatibility for special media.

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KHBT3K-LR Series: KHBT3K-06LR, KHBT3K-08LR, KHBT3K-10LR, KHBT3K-12LR, KHBT3K-15LR, KHBT3K-18LR, KHBT3K-22LR, KHBT3K-28LR

Alloy steel (20CrMnTi) valve body, PTFE sealing, alloy steel valve stem; right-angle design for space-saving pipeline layout.

1. Flow channel wear at elbow; 2. Fatigue cracking from pressure cycles; 3. Valve stem damage from improper operation.

1. Flush channels regularly to reduce scouring; 2. Avoid rapid pressure changes; 3. Operate the valve handle smoothly without force.

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KHBT3K-G Series: KHBT3K-G1/4, KHBT3K-G3/8, KHBT3K-G1/2, KHBT3K-G3/4, KHBT3K-G1, KHBT3K-G11/4, KHBT3K-G11/2, KHBT3K-G2

Brass alloy valve body, PTFE sealing, stainless steel valve stem; BSP thread for general industrial pipeline compatibility.

1. Corrosion from humid environments; 2. Thread wear from repeated disassembly; 3. Sealing aging from long-term use.

1. Store in dry areas when not in use; 2. Replace after 3-4 disassembly cycles; 3. Replace seals annually for regular use.

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Can BKH-SAE and ZY-SAE series valves be interchangeable in hydraulic systems?

They are both SAE-standard, so models with the same SAE thread size (e.g., BKH-SAE-J40 and ZY-SAE-J40) are interchangeable. Ensure rated pressure and fluid compatibility match the system requirements before replacement.

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How to choose the right YFYQ sub-series (LF/LN/LW) for different scenarios?

LF for chemical media (acid/alkali resistant), LN for low-temperature environments (≥-20℃), LW for water systems (waterproof sealing). Match the sub-series to the working medium and temperature to avoid premature failure.

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What is the recommended maintenance cycle for high-pressure ball valves in industrial applications?

For critical systems (oilfield/hydraulic machinery), inspect monthly and replace seals annually; for general industrial use, inspect quarterly and replace seals every 18 months. Clean valve cores and flush channels during maintenance to prevent clogging.