Smith & Loveless 3″ Mechanical Seal — Single or Double

Smith & Loveless 3″ Mechanical Seal — Single or Double

The Smith & Loveless 3″ mechanical seal is a direct-fit replacement seal for Smith & Loveless pumps running a 3″ shaft — choose single or double from the dropdown and you’ll get the right seal for your pump. Built to OEM-equivalent standards or higher for the same fit and reliability as the original.

This size is offered in our CRO style — the OEM-style equivalent to Durametallic CRO design. The single replaces H87A534; the double replaces H60A121 (VG-7532).

At a glance:

• Shaft size: 3″

• Style: CRO (OEM equivalent to Durametallic)

• Configuration: Single or Double

• Faces: Ceramic/Carbon

• Elastomers: Viton (FKM)

• Form: Seal assembly only (O-rings/gaskets sold separately)

What’s Included:

CRO Style (OEM equivalent to Durametallic) A complete OEM-style CRO mechanical seal — rotary and stationary faces with elastomers.

• Single: one seal set

• Double: two seal sets

Please note: this is the mechanical seal only. O-rings, shaft sleeves, and pump-side hardware are not included. (The double uses the gland plate #251 O-ring, which is not supplied.)

Single vs Double — Which Do I Need?

The difference is how many sealing points the pump uses. A single seal has one set of sealing faces — the standard setup on many Smith & Loveless pumps. A double seal has two sets of faces for a second barrier in tougher or continuous-duty service. The safest way to choose is to match what your pump came with: count the seals on the old unit, or check your parts list. Not sure? Send a photo to 561-414-1046 and we’ll confirm.

How to Order

Select single or double above — the price and cross-reference will update. Not sure which you need, or matching from a worn seal? Send your pump model and a photo of the old seal to info@sealhouseusa.com, or call/text 561-414-1046. No purchase required — our seal specialists will match it.