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Cast iron basket strainer with stainless steel screen and knob cover

Mueller Steam Specialty

Mueller Steam Specialty 1/2" 125 CI Iron Basket Strainer

SKU CH-8SVJ-FPK0S

Cast iron basket strainer with 304 stainless steel screen for 1/2 inch NPT water lines rated to 200 psi at 100°F

  • Protects downstream equipment with 0.06 in perforated 304 stainless screen
  • Withstands 200 psi at 100 °F thanks to 125 CI cast iron body
  • Handles water from –20 °F to 150 °F using Buna-N gasket seal
  • Delivers 42 gpm flow factor through 1/2 in NPT connection
  • Simplifies maintenance with knob cover and included screen

1/2" NPT Basket Strainer

The Mueller Steam Specialty basket strainer fits 1/2 inch NPT piping and uses a cast iron body rated for 125 class service. A 304 stainless steel screen with 0.06 inch mesh traps debris in water lines while a Buna-N gasket seals the knob-style cover. It operates between -20 and 150 degrees F at up to 200 psi.

Included 304 stainless screen

The factory-fitted perforated screen with 0.062 inch openings installs directly in the housing so the strainer is ready for service without extra parts. The knob cover allows quick access for cleaning or inspection without tools. A Cv flow factor of 42 gpm indicates the flow capacity through the clean screen at the rated pressure drop.

Water service up to 200 psi

The strainer handles continuous water flow at 200 psi and 150 degrees F, making it suitable for commercial and industrial plumbing within those limits. Cast iron construction and the Buna-N gasket are not rated for steam, high-temperature fluids or pressures above the stated maximum. Systems requiring finer filtration or higher temperature resistance need a different strainer design.

Highlights

  • Protects downstream equipment with 0.06 in perforated 304 stainless screen
  • Withstands 200 psi at 100 °F thanks to 125 CI cast iron body
  • Handles water from –20 °F to 150 °F using Buna-N gasket seal
  • Delivers 42 gpm flow factor through 1/2 in NPT connection
  • Simplifies maintenance with knob cover and included screen

Specifications

BrandMUELLER STEAM SPECIALTY

Questions about this item

How often will the 304 stainless steel screen need cleaning or replacement?

The 0.062 in perforated screen catches debris in water lines; cleaning frequency depends on the system's particulate load and flow rate.

What pressure limit applies when the strainer runs continuously at 100 °F?

The maximum working pressure at 100 °F is 200 psi, which is the first limit reached under sustained operation.

Does the cast iron housing radiate noticeable heat during all-day service?

At the rated 150 °F maximum temperature the cast iron body will become hot to the touch, so insulation or guarding is advisable for personnel safety.

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