Which direction should a Y strainer be installed?

In a horizontal pipeline the Y strainer screen pocket must point straight down at the 6 o'clock position. Gravity collects debris at the bottom of the screen for maximum capacity and easiest cleaning. For steam lines the pocket must point down so condensate drains into the pocket and does not cause water hammer in the steam system.

What mesh size for pump protection Y strainer on water service?

Specify 40 mesh (420 micron, 0.42mm opening) for centrifugal pump protection on water service. 40 mesh removes rust, scale, and general pipe debris without excessive pressure drop. 20 mesh is too coarse and passes impeller-damaging particles. 80 or 100 mesh blocks too quickly for general water service.

What is the difference between CF8 and CF8M Y strainer body?

CF8 is SS304 casting equivalent with no molybdenum — for non-chloride water, mild chemical, and HVAC. CF8M is SS316 casting equivalent with 2 to 3 percent molybdenum — for chloride service, seawater, treated cooling water, chemical plant, and coastal industrial where CF8 pits. Specify CF8M for any service above 150 ppm chloride.

What is the MOQ for Y strainer flanged Class 150?

MOQ is 10 Nos per size per body material. Project BOM orders mixing WCB and CF8M across multiple sizes are supplied with one GST invoice and API 598 test certificate. WhatsApp body material, size, mesh, and quantity for pricing within 2 hours.

Y Strainer Flanged End Class 150 Supplier India | WCB CF8 CF8M | SS304 SS316 Screen | DN25–DN300 | ASME B16.5 | API 598

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Supply Coverage — PAN India from Ahmedabad

Krishna Industries dispatches Y Strainers from Ahmedabad to all major industrial cities: Mumbai, Pune, Nashik, Nagpur (Maharashtra) · Chennai, Coimbatore, Bengaluru, Hyderabad (South India) · Delhi, Noida, Gurugram (NCR) · Surat, Vadodara, Rajkot, Ankleshwar, Vapi, Dahej (Gujarat) and all other states via VRL and Professional Courier.

Frequently Asked Questions

Which way should a Y strainer be installed in a horizontal pipeline?

In a horizontal pipeline, the Y strainer screen pocket (the lower leg of the Y) must point straight down — at the 6 o’clock position. This is the most important installation requirement and the most commonly violated. With pocket pointing down, gravity continuously collects debris at the bottom of the screen — maximum screen utilisation — and the drain plug at the bottom of the cap allows flushing collected debris without removing the screen. If the pocket points up, debris collects in the pipeline flow path, the screen fills unevenly, and cleaning is messier. For steam lines especially, pocket must point down so condensate drains into the pocket and is not carried into the steam system where it causes water hammer.

What mesh size should I specify for a centrifugal pump protection strainer on water service?

Specify 40 mesh (approximately 420 micron / 0.42mm opening) for centrifugal pump protection on water service. 40 mesh removes rust flakes, scale, sand, and general pipe debris that damages pump impellers and mechanical seals without creating excessive pressure drop across a clean strainer. 20 mesh is too coarse for pump protection — it passes particles that damage pump internals. 80 or 100 mesh is too fine for general water service — it blocks quickly under normal pipe debris load and requires very frequent cleaning. 40 mesh is the standard Indian process plant specification for water service pump protection Y strainers.

When should I use a basket strainer instead of a Y strainer?

Specify basket (T-type) strainer when: the debris load in the pipeline is high and the Y strainer screen fills quickly requiring very frequent cleaning; the pipe size is DN150 or larger on water service where the basket’s larger screen area is needed; continuous operation without any shutdown for cleaning is required (duplex basket strainer — one basket in service while the other is being cleaned); the pipeline is vertical upward flow where a Y strainer is less effective. Specify Y strainer for standard horizontal process piping on steam, oil, gas, and general liquid service where debris load is moderate and the compact Y-body fits the available space.

What is the difference between CF8 and CF8M body for a Y strainer?

CF8 is the ASTM A351 casting grade equivalent to SS304 — 18% chromium, 8% nickel, no molybdenum. CF8M is equivalent to SS316 — same Cr-Ni base plus 2–3% molybdenum. The molybdenum in CF8M provides resistance to chloride pitting and crevice corrosion that CF8 does not have. Specify CF8 for non-chloride service — DM water, mild chemical, HVAC chilled water, food non-chloride. Specify CF8M for chloride-containing service — seawater, chemically treated water above 150 ppm chloride, coastal industrial, chemical plant, and pharmaceutical process. If the strainer will be exposed to biocide-treated cooling water with chlorine-based chemicals, specify CF8M — CF8 pits at the chloride concentration typical of treated Indian HVAC cooling water systems.

What is the MOQ and documentation provided?

MOQ is 10 Nos per size per body material. Project BOM orders mixing WCB and CF8M in multiple sizes are supplied together with one GST invoice (GSTIN: 24AKLPP6499B1ZT). API 598 hydrostatic test certificate provided with every order. MTC — ASTM A216 WCB or A351 CF8/CF8M — available on request for project QA documentation. Specify mesh size (20 / 40 mesh recommended) at order stage — standard is 20 mesh for steam/gas, 40 mesh for liquid service. WhatsApp body material, size, mesh, and quantity for pricing within 2 hours.