A-0275-240 Waterjet Pump Parts Low Pressure Cylinder Repair Kit

A-0275-240 Waterjet spare parts Low pressure cylinder repair kit O-RING; BUNA-N; 70 DUROMETER for waterjet cutter pump:

A-0275-240 Waterjet spare parts Low pressure cylinder repair kit O-RING; BUNA-N; 70 DUROMETER for waterjet cutter pump description:

A-0275-240 Waterjet spare parts Low pressure cylinder repair kit O-RING; BUNA-N; 70 DUROMETER for waterjet cutter pump:

Required properties of materials for O-rings:

The O-ring exerts its sealing performance through the stress generated by the extrusion, so it is a basic requirement to hold a moderate stress within the range where abnormal deformation does not occur. And it is required that this basic property is not lost during use. And the most suitable material with this property is synthetic rubber. However, it is very difficult to make a material have all these properties, so it is necessary to use the corresponding materials according to the application.

O-ring material selection principle:

External factors:

1. Working status: dynamic seal, static seal; continuous work, intermittent work, etc.;

2. Working medium: liquid, gas or two-phase flow, and the physical and chemical properties of the medium, and its compatibility with the medium;

3. Working pressure: medium working pressure level, pressure amplitude, instantaneous maximum pressure;

4. Working temperature: instantaneous temperature and hot and cold alternating temperature;

5. Cost sources: low cost and wide sources.

Hardness of O-ring:

The hardness is generally 70-90 Shore hardness, the low value of 70 is selected for static seals, the high value of 80 for rotary seals, and 90 is rarely used.

Performance characteristics of O-rings

General rule: O-ring seal is an extrusion seal, and the main design content is the compression and extension of O-ring.

a, the amount of compression is too small: leakage;

b. Excessive compression: stress relaxation causes leakage;

c, the amount of stretching is too large: the interface diameter is reduced too much to cause leakage;

d. Compression rate exceeding 40% may cause compression cracks;

FAQ:

Q: When can i get the quotation?

We usually quote within 24 hours after we get your inquiry. If you are urgent to get the price, please send the message on trade management or call us directly.

Q: Do you have quality control?

Yes, we attach great importance to quality control.

Q: How about the warranty?

One year warranty for water jet cutting machine (no include wearing parts). If quality problem occurs, please feel free to contact us.

Q:How can i get a sample to check your quality?

After price confirmed, you can requiry for samples to check quality.

If you need the samples, we will charge for the sample cost.