• Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    We do business with each other for long time and will continue our cooperation. Quality partner!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Alexiou Aris
    Good quality and competitive price, I'm sure we will go further and further!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Work together long time, we like friends each other, easy to get along with, very pleasant cooperation!
Contact Person : Leela
Phone Number : 86-13586885132
WhatsApp : +8613586885132

Mechanical Nitrile Rubber O Ring Sealing NBR 10MPa For Valve

Place of Origin China
Brand Name WEIWO
Certification ISO9001:2008
Model Number 315*3.55
Minimum Order Quantity 1,000pcs
Price negotiation
Packaging Details strapping with a plastic bands, 200pcs per string
Delivery Time one week for new samples
Payment Terms T/T, Western Union, L/C
Supply Ability 100,000pcs per month
Product Details
Product Name Seal Ring Material NBR
Application Valve Color Customized
Net Weight 1.08g Molding No Need
High Light

NBR Nitrile high temperature o ring


10MPa high temperature o ring


70 shore A O Ring Sealing

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Product Description

Nitrile Rubber O Ring Sealing Gasket Mechanical Parts with various size



We are specialize in the sales, supporting and technical services of high quality oil seals, hydraulic & pneumatic seals, sealing materials, engineering rubber and plastic.


Products can be used in engineering machinery, injection molding machinery, hydraulic machinery, transmission machinery, sewing machinery, ceramic machinery, port machinery, metallurgical machinery, mining machinery, iron and steel machinery, forging machinery, hydraulic press, compressor, die casting machine, machine tool, Marine engineering and hydraulic pump, valve and other fields and industries.


With excellent logistics system, excellent management and sales experience, rich and professional sealing application technology, as well as reasonable price, perfect service system, we provide our customers with high quality hydraulic, pneumatic and sealing components.


We continue to serialization, scale and specialization of products have been developed, forming a strong technical and business advantages, thus winning the support and favor of the majority of customers.




1 - The material selection of o ring

Material: NBR, FKM, EPDM, VMQ, FFKM, FFKM, CR etc.


2 - The hardness selection of o ring

The hardness of o ring is related to the pressure.

Table below for reference:

Hardness Pressure
70 shore A
80 shore A 15MPa
90 shore A 25MPa


3 - The size selection of o ring

Measure the ID and C/S and inform us so we can offer the price to you.




1. Low water absorption


2. Corrosion resistance


3. Temperature resistance


4. High diaphaneity


5. Voltage resistance


The Relations of O Ring between Hardness and Working Pressure KG/CM2(mm)
Specification Hardness 35 70 105 140 175 210 350
1.78mm 70 0.15 0.10 0.05        
80 0.20 0.15 0.10 0.05 0.03    
90 0.25 0.20 0.13 0.10 0.08 0.05 0.03
2.62mm 70 0.18 0.13 0.08        
80 0.25 0.18 0.13 0.08 0.04    
90 0.30 0.25 0.18 0.13 0.10 0.08 0.04
3.53mm 70 0.20 0.15 0.10        
80 0.30 0.20 0.15 0.10 0.05    
90 0.40 0.30 0.20 0.15 0.13 0.10 0.05
5.34mm 70 0.25 0.18 0.13        
80 0.35 0.25 0.18 0.13 0.06    
90 0.45 0.35 0.25 0.18 0.15 0.13 0.06
7.00mm 70 0.30 0.20 0.15        
80 0.40 0.30 0.20 0.15 0.07    
90 0.50 0.40 0.30 0.20 0.18 0.15 0.07




1. Good tensile strength


2. High insulation


3. Best corrosion-resistant


4. Low friction


5. Abrasion resistance


Seal ring has a wide range of practicable temperature from -180 ~ 260°C and a wax-like surface to which anything hardly sticks. It has the lowest


coefficient of friction of all known solid materials. It has the best electrical properties of all plastics.


Industry Application:


Pipe coupling fittings


Valve disc/plate/bushing/sleeve


Insulators/electric components


Pipe connectors/impeller/gasket


Medical device parts


Manufacture process:

Mechanical Nitrile Rubber O Ring Sealing NBR 10MPa For Valve 0


Strict Quality control:


1)Selected raw material, no smell, safe and environmental

Mechanical Nitrile Rubber O Ring Sealing NBR 10MPa For Valve 1


2)Semi-finished o ring, fine workmanship, smooth surface

Mechanical Nitrile Rubber O Ring Sealing NBR 10MPa For Valve 2


Final products like this:

Mechanical Nitrile Rubber O Ring Sealing NBR 10MPa For Valve 3


Packing and delivery:


Packing Details : Inner package with PE bag, outer package with carton.

Delivery Details : Within 2 days for stock products. Around 25 days for customized products.

We usually ship by express, by sea or by air. You can also collect them by your own forwarder.


Competitive Advantage:


We are a comprehensive enterprise specialized in the development, production, sales and service of rubber seals.


Our company has sophisticated automatic machines and machining centers with advanced testing instruments to ensure the stable and efficient product quality.


We keep improving and developing sealing performance to maximize customer satisfaction.


Our staff of knowledgeable sales people are respond quickly to get you what you need when you need it.


We 100% inspect all the products we produce to ensure the highest quality.


We have plenty stock with over 50 million o-rings. We will always work to understand your application and provide the best possible solution.


Picture show:

Mechanical Nitrile Rubber O Ring Sealing NBR 10MPa For Valve 4