W02 Single Spring Mechanical Seal

The W02 is a compact wave-spring seal designed for applications where the buyer needs a recognized replacement geometry together with a broad material selection. Its operating range is suitable for many industrial pump duties, while the dimensional series provides a practical basis for matching an existing seal during maintenance.

The W02 should be selected by shaft size, radial dimensions and axial working lengths rather than by cross-reference name alone. This is especially important because W02-type seals are marketed under several equivalent or replacement families, and the final installation must still be checked against the actual pump.

Key Features

• Wave-spring mechanical seal for industrial pump applications.
• Available shaft size range: 16-75 mm.
• Operating temperature range: -40°C to +200°C.
• Maximum operating pressure: 0.8 MPa.
• Maximum sliding speed: 18 m/s.
• Stationary-ring options include silicon carbide, tungsten carbide and carbon.
• Rotary-ring options include tungsten carbide and steel.
• NBR, EPDM and FKM/Viton secondary seals available.
• Suitable for clean water, sewage water, oil and other moderately corrosive fluids.
• Widely cross-referenced for replacement projects.

Technical Specifications

Material Selection for W02

The W02 material combination should be chosen around the fluid rather than copied from an existing model code without checking the service conditions. For clean water, a standard combination may be sufficient; sewage, oil and corrosive fluids can require different face or elastomer selections.

• Stationary ring: SiC / TC / Carbon
• Rotary ring: TC / Steel
• Secondary seal: NBR / EPDM / FKM (Viton)
• Spring and metal parts: selected according to the required configuration and corrosion resistance

Applications

The W02 is used in pump systems handling clean water, sewage water, oil and other moderately corrosive fluids. For media containing chemicals, solids or additives, provide the actual fluid information and operating temperature so the material combination can be reviewed before production.

Replacement and Cross-Reference Matching

One of the main procurement uses of the W02 is replacement matching. The model is commonly associated with several established seal families, but final interchangeability still depends on dimensions, materials and operating conditions.

How to Select the Correct W02

• Confirm shaft diameter d.
• Check D1 and D3 against the existing rotating and stationary dimensions.
• Check d1 where it is part of the fixing or drive arrangement.
• Compare L1 and L2 with the existing axial installation length.
• Provide the actual medium.
• Provide operating temperature, pressure and speed.
• For replacement projects, send photos, an old sample or a dimensional drawing.

Replacement Matching Checklist

Why Choose Qixing

Qixing, the mechanical seal brand of Ningbo Yade Fluid Connector Co.,Ltd, manufactures and supplies mechanical seals for industrial buyers. For W02 replacement projects, our factory can review dimensions, material requirements and operating data together rather than relying only on the cross-reference name.

If the existing seal model is uncertain, send the shaft diameter, D1, D3, d1, L1 and L2 together with clear photos. This helps Qixing identify the closest matching configuration before quotation and production.

Frequently Asked Questions

What size range is available for the W02 Single Spring Mechanical Seal?

The W02 is available for shaft sizes from 16 mm to 75 mm.

What is the W02 operating temperature range?

The listed operating range is -40°C to +200°C, subject to material selection.

What is the maximum operating pressure?

The maximum listed pressure is 0.8 MPa.

What is the maximum sliding speed?

The maximum listed sliding speed is 18 m/s.

What fluids can the W02 handle?

Typical media include clean water, sewage water, oil and other moderately corrosive fluids.

Which dimensions should I check for a replacement?

Check d, D1, D3, d1, L1 and L2 against the existing seal or drawing.

What are the common W02 cross-references?

Common references include AES W02, Roten UNITEN 7K and Sterling 280L; dimensional verification is still required.

What stationary-ring materials are available?

Silicon carbide, tungsten carbide and carbon are available options.

Can Qixing match a W02 from an old sample?

Yes. Qixing can review an old sample, clear photos and measured dimensions together with the operating conditions.

What information should I provide for a quotation?

Provide shaft size, key dimensions, medium, temperature, pressure, speed and any available sample or drawing.

W02 Dimension Reference

Dimensions are in millimeters. Use this table for preliminary replacement matching and confirm critical dimensions against the existing seal or equipment drawing before production.