The 2113122 Carter valve spring plays a "reset core" role in the engine valve cycle. After the valve is opened, it needs to be quickly closed by the spring's elasticity. If the elasticity decays or breaks, it can cause the valve to close loosely, leak air, lead to cylinder pressure drop, power attenuation, abnormal noise and other problems. In the long run, it can also cause valve erosion and piston collision. In severe cases, the cylinder head needs to be disassembled for repair.
This valve spring is made of 50CrV4 high-strength alloy steel wire coil, which has undergone overall isothermal quenching treatment. Its elastic limit is 30% higher than that of ordinary spring steel, and it can withstand thousands of reciprocating expansions and contractions per minute without fatigue. The surface of the steel wire is treated with phosphating and rust prevention, combined with shot peening strengthening process to eliminate stress concentration points, significantly enhancing its fracture resistance and extending its service life by 50% compared to ordinary springs. It is particularly suitable for Caterpillar's engine use under high load operation.
To ensure the accuracy of valve closing, the two ends of the spring are ground flat, with a perpendicularity error controlled within 0.05 millimeters, tightly fitting with the valve seat to avoid spring bending caused by force displacement. It can provide stable elasticity during work, ensuring that the valve and valve seat ring are tightly fitted, and the air leakage is controlled within the minimum range. It is suitable for Caterpillar 320D, 336D excavators and C7.1, C9.3 series engines, covering high-intensity work scenarios such as mining and engineering.
Its elastic parameters are precisely calibrated and perfectly matched with valve lift, ensuring sufficient stroke when the valve is fully open and providing sufficient pressure when it is closed to avoid valve jumping. Whether in cold starting conditions at low temperatures or continuous operation at full load at high temperatures, it can maintain stable elasticity and ensure precise valve timing.
Ningbo Qiuning Trading Co., Ltd. provides options for the original and aftermarket of this model of valve spring. The original factory products strictly follow Caterpillar standards, and the elasticity coefficient and fatigue life fully match the original system, making them suitable for equipment with extremely high requirements for valve accuracy; By optimizing the steel wire material and heat treatment process, the subsidiary products have better cost-effectiveness while ensuring the core elastic performance, meeting the needs of routine maintenance.
Each batch of springs in the company undergoes elastic attenuation testing, fatigue resistance testing, and dimensional verification to ensure that there are no defects such as deformation or cracks. A professional team can provide selection recommendations based on the engine model and operating intensity. Regardless of which one is chosen, it can provide reliable elastic support for the Carter engine valve system, reducing the risk of valve failure.
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E-mail： allen@perkins-rx.com
Caterpillar Caterpillar Excavator Series: 312 D、313D、315D、318D、320C、320CL、320D、320DL、323D、323DL、324D、 326D、325C、325D、329D、329DL、330D、330C、330CL、330DL、336D、336DL、345C、345CL、345D、345DL、349D、349DL、365C、365CL、374D、374DL、385C、385CL、390D、390DL、305.5、306、307、307C、307D、308、308C、308D、305.5E、306E、307E、308E、305.5E2、306E2、307E2、308E2、313D2、318D2、320D2、323D2、 326D2、329D2、330D2、336D2、349D2、374F、390F。
Caterpillar Engine Series: 4 M40、C4.2、C6.4、C6.6、C7、C-9、C9、C13、C15、C18、C10、C11、C12、C16、C-16、C-15、C27、C32、C175； 3066, 3056, 3054, 3116, 3126, 3204, 3304, 3306, 3406, 3408, 3412, 3456, 3504, 3508, 3512, 3516, 3606, 3608, 3612, 3616.
Caterpillar engine models: C-9, C-10, C-11, C-12, C-13, C-15, C-16, C-18 C0.5，C0.7，C1.1，C1.5，C1.6，C2.2，C3.3，C3.4，C4.4，C6.4，C6.6，C7，C9，C11，C12，C13， C15，C18，C27，C32，C175，C280
Main models: D315，D318D326，D330，D330，D333，D334，D336，D339，D340，D342，D343，D346D348，D349， D353，D364，D375，D379，D397，D398，D399 1140，1145，1150，1160，1670，1673，1674，1676，1693 3003，3011，3013，3014，3024，3034，3044,3054，3056，3064，3066 3114，3116，3126，3145，3150，3160，
