Jan 14, 2026 Dynamic Forge & Fittings (I) P. Limited No Comments

Dynamic Forge & Fittings manufactures high-performance Duplex Strainers designed for processes where continuous flow is essential and shutdowns are not acceptable.

Our Duplex Strainers feature a dual-chamber filtration system that allows operators to switch between two screens without interrupting the pipeline flow, making them ideal for critical applications..

Built for operational reliability, these strainers efficiently remove solid impurities from liquids and ensure long-term protection of pumps, valves, heat exchangers, and other sensitive downstream equipment. The seamless changeover mechanism enables cleaning or replacement of one basket while the other remains in service..

Distinctive Advantages

  • Continuous operation — no shutdown required during cleaning
  • Heavy-duty construction for harsh industrial conditions
  • Quick-changeover valve design for smooth screen switching
  • Optional differential pressure indicators for monitoring
  • Customizable basket mesh sizes for specific filtration needs

Material Availability

  • Carbon Steel • SS304 • SS316 • Duplex • Super Duplex • Alloy Steel • Monel • Inconel • Hastelloy

Where Duplex Strainers Are Used

  • Oil & Gas • Desalination • Marine Systems • Chemical Processing • Water Treatment • Power Generation • Petrochemical Plants • Long-distance pipeline networks

Technical Specifications:

PARAMETER BFV-IL-CL BFV-IL-EL BFV-OL BV Series DS-P AUTO
Series BFV-IL-CL BFV-IL-EL BFV-OL BV Series DS-P AUTO
Size Range 2″–48″ 5″–12″ 2″–48″ ½″–2″ 2″–48″
End Connection Flanged ANSI B16.5 / AWWA / IS (150/300) Flanged ANSI B16.5 / AWWA / IS (150/300) Flanged ANSI B16.5 / AWWA / IS (150/300) Flanged / Screwed / Socket-Welded Flanged ANSI B16.5 / AWWA / IS (150/300)
Screen Type Perforated Perforated Perforated 3 mm perforated Perforated
Cover Type Thru-bolt Thru-bolt Thru-bolt Thru-bolt Thru-bolt
Drain / Vent Drain plug + Vent with DP indicator Drain plug + Vent with DP indicator Drain plug + Vent with DP indicator Drain plug Drain plug + Vent with DP indicator
Drain/Vent Material A105 / CS / Stainless Steel A105 / CS / Stainless Steel A105 / CS / Stainless Steel A105 / CS / Stainless Steel A105 / CS / Stainless Steel
Design Standard ASME VIII Div.1 ASME VIII Div.1 ASME VIII Div.1 ASME VIII Div.1 ASME VIII Div.1
Body Material IS1239 / 3589 / ASTM A106 / SS304-316 / Duplex IS1239 / 3589 / ASTM A106 / SS304-316 / Duplex IS1239 / 3589 / ASTM A106 / SS304-316 / Duplex IS1239 / 3589 / ASTM A106 / SS304-316 / Duplex IS1239 / 3589 / ASTM A106 / SS304-316 / Duplex
Cover Material A105 / SA516 Gr70 / IS2062 / SS304-316 / Duplex A105 / SA516 Gr70 / IS2062 / SS304-316 / Duplex A105 / SA516 Gr70 / IS2062 / SS304-316 / Duplex A105 / SA516 Gr70 / IS2062 / SS304-316 / Duplex A105 / SA516 Gr70 / IS2062 / SS304-316 / Duplex
Valve Body Cast Iron / WCB / CF8 / CF8M Cast Iron / WCB / CF8 / CF8M Cast Iron / WCB / CF8 / CF8M Cast Iron / WCB / CF8 / CF8M Cast Iron / WCB / CF8 / CF8M
Valve Disc / Trim Cast Iron / SS304 / SS316 Cast Iron / SS304 / SS316 Cast Iron / SS304 / SS316 SS304 / SS316 Ball Cast Iron / SS304 / SS316
Fasteners A193 B7 + A194 2H + SS304/316 A193 B7 + A194 2H + SS304/316 A193 B7 + A194 2H + SS304/316 A193 B7 + A194 2H + SS304/316 A193 B7 + A194 2H + SS304/316
Gasket Material CAF / NACF / Neoprene / Nitrile / PTFE CAF / NACF / Neoprene / Nitrile / PTFE CAF / NACF / Neoprene / Nitrile / PTFE CAF / NACF / Neoprene / Nitrile / PTFE CAF / NACF / Neoprene / Nitrile / PTFE
Filter Element SS304 / SS316 / Duplex / Brass / Monel / Hast-C SS304 / SS316 / Duplex / Brass / Monel / Hast-C SS304 / SS316 / Duplex / Brass / Monel / Hast-C SS304 / SS316 / Duplex / Brass / Monel / Hast-C SS304 / SS316 / Duplex / Brass / Monel / Hast-C
Screen Sizes 2″–8″, 10″–12″, 14″–24″ 5″–8″, 10″–12″ 5″–8″, 10″–12″, 14″–24″ ½″–2″ 2″–8″, 10″–12″, 14″–24″
Screen Opening 3.2 mm & 4.8 mm 3.2 mm 3.2 mm & 4.8 mm 3 mm 3.2 mm & 4.8 mm
Straining Ratio 6× 6× 6× 6× 6×