Key Features

• Small Shaft Precision: Designed for smaller APV W+ and Puma pumps with 25mm and 28mm shafts.

• Compact Performance: Delivers full industrial sealing performance in a compact footprint suitable for pilot plants and dosing pumps.

• Food Safe: As with all our sanitary seals, it uses FDA-approved materials safe for direct contact with food products.

• Low Friction Face: The standard Carbon face is chosen for its low coefficient of friction, critical for smaller motors where seal drag can be significant.

• Secure Mounting: The stationary seat is designed with a precise interference fit or O-ring mount to ensure it stays square to the shaft.

Applications

APV Pump Models: Direct fit for APV W, W+, PUMA, and V2 series pumps.

Mechanical seal 20mm & 22mm: Ideal for ZMA, ZMB, ZMK agitators and smaller W+ pumps.

Mechanical seal 24mm, 25mm, 28mm: Standard for APV W and W+ centrifugal pumps (e.g., W 25/75, W 50/50).

Industries: Food processing, dairy, brewing, CIP systems.

Customization & Technical Data

We specialize in tailoring the APV mechanical seal to your exact process conditions. Beyond the standard mechanical seal 25mm and mechanical seal 22mm, we offer modifications for abrasive slurries, high-temperature cleaning, and corrosive fluids.

Customizable Features

Shaft Size Variants: While 20mm, 22mm, 24mm, 25mm, 28mm are stock items, we can modify the bore for non-standard shafts (e.g., 21mm or 26mm).

Material Combinations:

Standard Duty: Carbon vs. Silicon Carbide (SiC) for general food service.

Abrasive/Harsh Duty: SiC vs. SiC for extended life in CIP systems.

Elastomers: EPDM for hot water/steam, Viton for chemical resistance.

Flush Ports: Custom drilling for single or double flush configurations on mechanical seal 24mm and mechanical seal 28mm sizes.

Why Choose Our APV Mechanical Seals?

OEM Interchangeability: Our seals are precision-machined to match original APV drawings. The mechanical seal 20mm fits ZM series agitators perfectly, and the mechanical seal 25mm is a direct drop-in for W series pumps.

Extended Life: Using premium-grade silicon carbide (SiC) faces, our mechanical seal 24mm and mechanical seal 28mm units withstand abrasive cleaning-in-place (CIP) cycles better than standard ceramic.

Global Stock: We maintain deep inventory of all popular sizes, including the high-demand mechanical seal 22mm and mechanical seal 25mm, ensuring 3-5 day delivery to most global ports.

Technical Support: Our engineers provide free compatibility checks to ensure the correct mechanical seal (e.g., 20mm vs 22mm) is selected for your specific APV pump model.

Product Specifications

Workshop

This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.

Product Research, Development and Testing

Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.

Industry Solutions

FAQs

Q: Is this a single or double seal?

A: This product page refers to the Single seal. However, these pumps can often be fitted with a double seal. We supply double seal kits for 25mm/28mm shafts as well.

Q: What is the most common APV mechanical seal size?

A: The mechanical seal 25mm is the most prevalent size for popular APV W+ series centrifugal pumps. However, we also frequently supply the mechanical seal 20mm for older W series and agitators, and the mechanical seal 28mm for specific mid-size models.