W01 Single Spring Mechanical Seal

The W01 uses a compact wave-spring arrangement to keep the rotating assembly short while maintaining the axial loading required at the seal faces. This makes the series useful where installation length is limited and where a buyer needs a widely recognized replacement geometry rather than a completely application-specific cartridge design.

For procurement, the important point is that W01 should be matched by more than the shaft diameter. The outside diameters and axial working lengths should be checked against the existing seal or equipment drawing, and the material combination should be selected for the actual fluid.

Key Features

• Compact wave-spring mechanical seal for pump shafts.
• Shaft size range from 15.8 mm to 75 mm.
• Operating temperature range from -40°C to +200°C.
• Maximum operating pressure: 0.8 MPa.
• Maximum sliding speed: 18 m/s.
• Seal-face options include silicon carbide and tungsten carbide.
• Stationary-seat options include carbon, silicon carbide and tungsten carbide.
• NBR, EPDM and FKM/Viton elastomer options for different media and temperatures.
• SS304 and SS316 spring and metal-part options.
• Useful for OEM supply and dimension-based replacement matching.

Technical Specifications

Why the W01 Wave-Spring Layout Is Useful

The wave spring gives the W01 a short working length compared with many conventional coil-spring arrangements. For maintenance teams, this can be useful when the existing seal chamber has limited axial space. The compact structure also makes dimensional verification especially important: a seal with the right shaft diameter can still be unsuitable if D1, D3, L1 or L2 differs from the existing installation.

Material Selection

Material selection should be based on the handled medium and duty conditions. Silicon carbide is commonly selected where wear resistance and chemical compatibility are important, while tungsten carbide can be considered for duties requiring high mechanical strength. The elastomer must also match the fluid and temperature.

• Seal face: SiC / TC
• Stationary seat: Carbon / SiC / TC
• Secondary seal: NBR / EPDM / FKM (Viton)
• Spring: SS304 / SS316
• Metal parts: SS304 / SS316

Applications

The W01 is commonly used in centrifugal and process-pump sealing duties involving water, oil and other compatible fluids. For weak acids, weak alkalis or other corrosive media, the actual concentration and temperature should be provided so Qixing can review the face and elastomer combination before production.

Replacement and Cross-Reference Matching

W01 geometry is widely cross-referenced in the mechanical-seal market. Cross-reference names can be useful for initial identification, but they should not be treated as proof of interchangeability. Always confirm shaft size and the key installation dimensions before ordering.

How to Select the Correct W01

• Confirm shaft diameter.
• Measure D1 and D3 on the existing seal where possible.
• Check L1 and L2 against the available axial installation space.
• Confirm the actual medium and operating temperature.
• Provide operating pressure and shaft speed.
• Identify the preferred seal-face and elastomer materials if already specified.
• For replacement orders, send clear photos, an old sample or an equipment drawing.

Why Choose Qixing

Qixing, the mechanical seal brand of Ningbo Yade Fluid Connector Co.,Ltd, manufactures mechanical seals for OEM, maintenance and replacement supply. For W01 projects, our factory can review shaft size, key dimensions, materials and operating conditions before production.

If the old seal has no readable model marking, provide the shaft diameter together with D1, D3, L1 and L2. These measurements give Qixing a clearer basis for matching than the shaft size alone.

Frequently Asked Questions

What size range is available for the W01 Single Spring Mechanical Seal?

The W01 covers shaft sizes from 15.8 mm to 75 mm.

What is the W01 operating temperature range?

The listed operating range is -40°C to +200°C, subject to the selected materials.

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 makes the W01 different from a conventional coil-spring seal?

The W01 uses a compact wave-spring arrangement that helps keep the working length short.

Which dimensions are most important for replacement matching?

Check shaft size together with D1, D3, L1 and L2.

Which elastomers are available?

NBR, EPDM and FKM/Viton are available options.

Can W01 be used as a replacement for John Crane 80 or Roten 7K?

These families are commonly cross-referenced, but the dimensions and operating conditions must be confirmed before replacement.

Can Qixing customize the material combination?

Yes. Qixing can review seal-face, seat, elastomer and metal selections according to the actual application.

What should I send with an inquiry?

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

W01 Dimension Reference

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