CAST IRON Y TYPE STRAINER DRP®

DRP (DRP Metal Works / DRP Group) is a well-known Indian manufacturer of valves, pipe fittings, cast iron, cast steel, stainless steel etc. DRP Group+2DRP Group+2
Their quality policy is ISO-9001:2015.

Parameter	Likely Values / DRP Range / What to Confirm
Body Material	Cast Iron, probably IS 210 Grade FG 200 (a common cast iron grade in India) or equivalent.
Cover / Bonnet / Screen Retainer	Cast Iron, bolted or screwed cover; screen likely stainless steel (SS-304) perforated sheet or mesh.
Screen Material	SS 304 perforated plate / mesh; perforation size maybe ~3 mm or finer depending on model.
End Connections	Could be flanged (common if larger sizes), or screwed / BSP / NPT for smaller sizes.
Size (Nominal Diameter)	Likely range from about ½-inch to large sizes (e.g. DN 300 or more) in flanged types; smaller in screwed types.
Pressure Rating	Probably around PN 10, PN 16, or pressure class equivalent (in kgf/cm²) = ~10-16 kg/cm²; for cast iron, above that is less common.
Temperature Range	Ambient / water / steam service at moderate temperature; maybe up to ~200-220 °C maximum, depending on gasket / screen, etc.
Testing	Hydrostatic test of body / shell; some differential pressure test; quality assurance under ISO-9001.
Finish / Coating	Usually natural cast iron finish; possibly painted, or with some anti-corrosive treatment; drain plug provided.
Gasket / Seal	Gasket material (if flanged or bonnet cover) likely according to IS standard (e.g. steam jointing sheet / compressed asbestos-free gasket / rubber depending on application).

Uses / Applications

These kinds of cast iron Y-type strainers are generally used to:

Protect downstream equipment such as pumps, valves, meters, steam traps, control valves, heat exchangers from particulate solids (scale, rust, weld spatter, debris).
For water lines, cooling water, non‐corrosive fluids, steam lines of moderate temperature, perhaps oil service if lubricated and non-aggressive.
Industrial / municipal / plumbing / HVAC systems.

Here are likely advantages and drawbacks of a DRP cast iron Y-type strainer:

Pros:

Cost effective — cast iron is relatively inexpensive compared to steel or exotic alloys.
Good durability under moderate service conditions.
Adequate strength for many standard water / steam / general industrial fluids (within its temperature / pressure limits).
Easy maintenance — Y-type design allows removal of screen, cleaning, sometimes without full shut down depending on layout.
Wide availability — parts, repair, screen replacement likely easier in domestic market.

Cons:

Limited pressure & temperature — cast iron becomes brittle at higher temperatures; has lower tensile strength than steel; risk of cracking under thermal shock or under high pressure.
Corrosion — cast iron can corrode; if fluid is aggressive (acidic, salty, etc.), or in moist ambient, corrosion could shorten life. Protection (painting, coatings) helps but adds cost.
Weight — cast iron items are heavier; handling, installation more laborious.
Brittleness — more sensitive to shock loading or sudden thermal changes.
Maintenance access — bonnet / cover clearance needed; draining etc.

If you need the actual DRP Cast Iron Y-Type Strainer spec, check or ask for:

DRP catalog / data sheet for Y-type strainers (cast iron body).
The size range and end connection types they offer (flanged vs screwed).
Pressure rating (PN / kg/cm² / psi) for each size.
Material standard for body, screen, gasket.
Maximum working temperature.
Perforation or mesh size of screen.
Test pressures (hydrostatic / shell).
Drain plug (yes/no) and orientation (Y-angle).