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Black elastomeric PVC shielded coupling with stainless steel clamps and shear ring, 1-1/2 inch size

Fernco Inc.

Fernco Inc. 3000-150 Shielded Coupling 1-1/2 In. trap

SKU CH-BFEQ-Z2QSB

Shielded coupling joins 1-1/2 inch cast-iron to plastic or steel DWV pipe with an internal stop that cuts noise and vibration

  • TypeDrain Components
  • MaterialElastomeric PVC
  • Connects cast-iron to plastic or steel without bushings
  • Internal pipe stop ensures correct fit and cuts noise
  • Outer shear ring and clamps meet ASTM A167-91
  • Tested to 4.3 psi for reliable DWV performance
  • Installs at 60 in-lb torque for secure joints

Product Identity

The Fernco 3000-150 Shielded Coupling joins 1-1/2 inch cast-iron pipe to plastic, steel, or extra-heavy cast iron without bushings. It serves plumbers and maintenance crews working on drain, waste and vent systems. An internal pipe stop ensures correct insertion depth during assembly. The coupling meets ASTM A167-91 requirements for the outer shear ring and clamp assemblies.

Thermals Noise Power

The elastomeric PVC body operates at temperatures up to 180 F and withstands a test pressure of 4.3 psi. Installation torque is specified at 60 In./Lb. for the clamp assemblies. The flexible material dampens vibration and reduces noise transmission across the joint. No external power or active cooling is required for this passive fitting.

Upgrade Context

This coupling replaces makeshift bushing assemblies or mismatched transition fittings that leak or loosen over time. The jump is worth it when a code-compliant, shear-protected joint is required between dissimilar pipe materials in DWV applications. It is not suited for pressurised supply lines or pipe sizes other than 1-1/2 inch.

Highlights

  • Connects cast-iron to plastic or steel without bushings
  • Internal pipe stop ensures correct fit and cuts noise
  • Outer shear ring and clamps meet ASTM A167-91
  • Tested to 4.3 psi for reliable DWV performance
  • Installs at 60 in-lb torque for secure joints

Specifications

TypeDrain Components
MaterialElastomeric PVC
BrandFernco

Questions about this item

How do I install the 3000-150 coupling and what torque setting avoids leaks?

Slide the coupling over the pipe ends, seat them against the internal pipe stop, then tighten the clamp assemblies to 60 In./Lb. using a torque wrench; overtightening is the common error that distorts the elastomeric PVC seal.

What part of the 3000-150 coupling will need replacement after years in a DWV system?

The elastomeric PVC sleeve is the wear item; prolonged exposure to 180 F effluent and chemical drain cleaners hardens the material, so plan to swap the coupling when the sleeve loses flexibility or shows surface cracking.

At what pressure does the 3000-150 coupling reach its test limit during a sustained blockage backup?

The coupling is tested to 4.3 psi; a prolonged surcharge that exceeds this pressure is the first limit encountered before the ASTM A167-91 stainless shear ring or clamps would yield.

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