Gold Member Since 2011
Audited Supplier
Ningbo Sunwell Sealing Materials Co., Ltd.

Back up, Ring, Back up Ring manufacturer / supplier in China, offering Back up Rings Reciprocating Shaft Seals, Nomex Fiber Packing with Silicone Rubber Core (SUNWELL P305), Reinforced Graphite Gasket Sheet with Ss Tang Insert and so on.

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Back up Rings Reciprocating Shaft Seals

FOB Price: US $0.9 / Piece
Min. Order: 5 Pieces
Min. Order FOB Price
5 Pieces US $0.9/ Piece
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Port: Ningbo, China
Production Capacity: 150000piece/Month
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: SUNWELL H50 Range
  • Pressure: Medium Pressure Mechanical Seals
  • Temperature: Temperature Mechanical Seal
  • Standard: Standard, Nonstandard
  • Color: Black
  • Trademark: SUNWELL
  • Specification: Standard Nonstandard according your request
  • Structure: Single End
  • Speed: General Speed Mechanical Seal
  • Performance: Hardness
  • OEM: Yes
  • Hardness: Greater Than Rubber O-Rings
  • Transport Package: Wooden Box
  • Origin: China
Product Description



NINGBO SUNWELL SEALING MATERIALS CO.,LTD is one of the biggest sealing and heat preservation products manufacturers in China. SUNWELL is a professional manufacturer engaged in the research, development, production, sale and service of Metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets, Sealing Equipments, Insulation Products, Hydraulic Sealing products, etc.

SUNWELL is located in Cixi,Ningbo,China. And have convenient transportation access. Dedicated to strict quality control and thoughtful customer service. Our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In recent years, our company has introduced a series of advanced equipment, including fully automatic spiraling machine, CNC machines, double jacketed machine, full range of sheeting machines. In addition, we have attained ISO9001:2008 certificate.

Back-up ring is a device used in conjunction with an elastomeric seal, eg. O-rings, lip seals, and reciprocating shaft seals. Because its function, back-up ring must be ever done on a harder material that the one it completments. The hardness must be made greater than rubber o-rings.

Care should be taken while selecting the back-up ring material since other physical or chemical factors might be producing the disfunction of a seal

Back up Rings Reciprocating Shaft Seals
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