How can I check the quality of a bulk order?

We provide preproduction samples if needed and accept third-party inspections such as TUV, Intertek, and BV.

Do you use international standards for rubber products?

Yes, we mainly use the GB/T3452.1-2005 standard to define the quality of our rubber materials.

What materials are available for production?

We produce from NBR, EPDM, Silicone, FPM(FKM), PTFE, POM, PU, Neoprene, NR, IIR, SBR, ACM, AEM, and more.

Do you provide maintenance on tooling?

Yes, we maintain all tooling and will replace it as needed.

How many employees do you have?

As of December 2024, we have 25 employees.

Optimal Performance NBR90b Rubber Back up Ring for High Pressure N90b

Name: Optimal Performance NBR90b Rubber Back up Ring for High Pressure N90b
Brand: Ningbo Palt Import And Export Co., Ltd.
SKU: 2330053125

Zhejiang, ChinaNingbo Palt Import And Export Co., Ltd.

US$0.045

300 Pieces

Product specifications

Size (IDODHeight)

21.08*23.78*1.2421.11*25.47*1.3522.68*25.38*1.2424.21*30.21*1.2724.26*26.96*1.2425.86*28.56*1.2425.86*30.22*1.3527.43*30.13*1.2429.03*31.73*1.2429.03*33.39*1.3530.56*36.56*1.2732.21*34.91*1.2433.43*42.73*1.9333.78*36.48*1.2433.81*38.17*1.3535.38*38.08*1.2435.38*39.74*1.3535.48*41.48*1.2737.06*43.06*1.2738.56*41.26*1.2438.66*44.66*1.2741.61*50.91*1.9341.73*44.43*1.2443.33*47.69*1.3544.91*47.61*1.2446.51*50.87*1.3548.08*50.78*1.2448.18*54.18*1.2749.68*54.04*1.3551.26*53.96*1.2451.26*55.62*1.3551.36*57.36*1.2754.43*57.13*1.2454.53*60.53*1.27+34

Sample price:US$0.05/piece.Request sample

Product profile

Customization

Available

Material

NBR

Application

Electric

Type

Rubber Back-up Ring

Performance

High Pressure

Shape

O-Ring

Standard

Colour

Black

Hardness

Use

Hydralice Valve

Name

Back up Ring

Transport Package

Carton

Specification

21.08 to 54.53

Trademark

Origin

China

HS Code

4016931000

Production Capacity

5000000PCS/Month

Key features

High Pressure Capability: Enables sealing systems to withstand up to 40 MPa or more, significantly higher than O-rings alone.

Extrusion Prevention: Protects main seals from being forced into mating clearances under high pressure to prevent damage.

Extended Service Life: Prevents extrusion, twisting, and tearing of O-rings to greatly prolong operational lifespan.

ISO and Safety Certified: Certified by SGS for ISO9001:2015, ISO14001:2004, ROHS, and REACH compliance.

Wide Material Selection: Available in NBR, EPDM, Silicone, FKM, PTFE, PU, and many other rubber compounds.

Third-Party Inspection: Accepts quality checks from TUV, Intertek, BV, and provides preproduction samples.

Flexible Customization: Offers full, minor, and flexible customization from designs or samples.

High Monthly Capacity: Production capacity exceeds 500 tons of rubber materials per month.

Company profile

Importers and ExportersExhibition ExperienceODM ServicesHigh Repeat Buyers Choice

Ningbo Palt Import And Export Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 9 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤3.48h