Watts 843H 4 Strainer, Flanged

The Watts 843H 4 is a 4" plate-pattern strainer with Flanged connections that removes pipeline debris and particulates to protect downstream equipment. It ships with a 10 mesh stainless steel screen. It features a buna-n seat.

This 4 inch 150# flanged fabricated carbon steel plate strainer is used to filter undesirable particulate from pipelines, thereby protecting other equipment downstream. The 843H plate strainer is ideal for preventing debris and particle build up in Watts Automatic Control Valves. This strainer comes with a stainless steel 10 mesh screen. Plate style strainers promote ease of maintenance, requiring only cover removal for servicing. The 843H plate strainer is armed with ArmorTek®, a patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion.

Features

• Designed for low pressure drop applications
• Grooved clean out ports located on both sides for ease of maintenance
• Body construction with patented 3-part ArmorTek epoxy coating for advanced corrosion resistance
• Optional accessories include manual differential pressure gauge, or ACV Assure pressure monitoring system
• Includes: Strainer

Common Questions

What mesh or screen size does it come with?

843H 4 ships with a 10 mesh stainless steel screen (10 openings per linear inch). That is the standard screen Watts supplies for this body at this pipe size -- the screen size is not called out in the model number, so it varies by size across the series.

What is the "seat material" on a strainer?

A strainer has no seat -- nothing closes against anything. The Buna-N called out here is the retainer-cap seal (the gasket between the cap and the body), which is what limits the temperature and chemical compatibility of the closure.

Specifications

• Type: Strainer
• Size: 4"
• Connection: Flanged
• Cap Seal / Gasket Material: Buna-N
• Pressure Class: Class 150
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: 843H 4
• Lead-Free: No
• Strainer Pattern: Plate
• Screen Type: Mesh
• Screen Mesh: 10
• Body Coating: Epoxy