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Piston Oil Seal

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Oil Seal

The piston seals, mainly used in hydraulic cylinders, must ensure the sealing of pressurised fluids between the piston and the bore. The moving piston rod generates high pressure on the piston seal which increases contact forces between the seal and cylinder surface. For this reason, the surface properties of the sealing surfaces are critical to proper seal performance

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Product Description

Commodity name: Piston Oil Seal
Commodity ID: PC-0066

Piston seal, also known as a piston ring, is a mechanical seal used to prevent liquid or gas leakage through the gap between the piston and the cylinder block. Piston seals are usually made of a combination of elastic and metal materials. It is divided into piston seals and rod seals and rod/piston dual-purpose seals, which belong to the hydraulic seals.

Piston seal refers to the seal between the cylinder and the piston, the poor seal will affect the performance of the cylinder, the seal slot is opened on the piston. The piston seal is the main seal in the hydraulic cylinder, and the pressure is bidirectional.

Rod seal refers to the seal between the piston rod and the cylinder head, the seal is not good enough to leak oil, and the sealing groove is opened on the hole. Unidirectional pressure

Product	NO.	Seals model	Description	Type
Hydraulic seals	1	Rod seals	The rod seals, mainly used in hydraulic cylinders, must ensure the sealing of fluids while meeting the conditions for extreme use.	GSI,GSJ,IDI,IDU,UN,UHS VES,etc
	2	Piston seals	The piston seals, mainly used in hydraulic cylinders, must ensure the sealing of pressurised fluids between the piston and the bore.	GSF,GSD,PDDP,AQ,SPG,SPGW ODU,ODI,etc
	3	Rod/piston seals	The hydraulic symmetrical seals are seals that can be used to seal rods or cylinders.	UPH,USH,UPI,USI,TSE,SEG,V,etc
	4	Pneumatic seals	The pneumatic seal is mainly used to contain fluids such as compressed air and gas. To make pneumatic seals, materials with advanced properties are used, which offer the best compromise between friction loads, the type of fluids and the effects of temperature and pressure.	TDP,PDP,PPZ,Z8,E4,etc
	5	Wiper seals scraper seals	Mainly used for linear dynamic applications, the wiper seals are used to stop the entry of impurities and to preserve the lubricating film on the contact rod.	DKB,GA,DKI,DWI,LBH,DKBI

Table 1:Piston seals

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NO.	Type	Temp ℃	Speed ≤ m/s	Pressure≤MPa	Stand cross	DWG	Material
1	GSF	&苍产蝉辫;-45～+200	15	60	ISO 7425/1 OMK-MR		PTFE NBR FKM
2	GSD	&苍产蝉辫;-45～+200	15	60	ISO 7425/1 GS55014/12/16		PTFE NBR FKM
3	PDDP	&苍产蝉辫;-45～+200	15	35	ISO3320 PD		PTFE NBR FKM
4	AQ	&苍产蝉辫;-45～+200	2	40	ISO 7425/1 PQ12/14/22		NBR PTFE FKM
5	SPG	&苍产蝉辫;-45～+200	2	35	SPG		NBR PTFE FKM
6	SPGW	&苍产蝉辫;-40～+160	1.5	50	SPGW		NBR PTFE FKM POM
7	ODI	&苍产蝉辫;-40～+100	0.5	40	OSI OUIS PUA		TPU PU
8	ODU	&苍产蝉辫;-40～+100	0.5	32	OSI OUIS PUA		TPU PU
9	KDAS	&苍产蝉辫;-35～+100	0.5	35	ISO 6547 DAS		NBR POM TPE
10	SPGO	&苍产蝉辫;-30～+160	1.5	35	SPGO		NBR PTFE FKM
11	OMKS	&苍产蝉辫;-30～+100	5	40	OMK-S		PTFE NBR PU