Kirloskar Swing Type Cast Iron Foot Valve
Kirloskar Cast Iron Swing Type Foot Valve: Specifications & Buying Guide
Kirloskar Cast Iron Swing Type Foot Valves are specialized suction-line check valves designed to maintain automatic pump priming and prevent liquid backflow into water sumps. Manufactured in strict accordance with IS 4038 standards, these heavy-duty valves feature an integrated bottom strainer to block foreign debris, protecting centrifugal pumps and industrial fluid machinery from clogging and impellor damage.
Core Specifications & Design Standards
|
Parameter |
Standard Technical Specification |
|
Design & Testing Standard |
IS 4038 compliant |
|
Size Range |
DN 50 mm to DN 600 mm (2" to 24") |
|
Pressure Rating |
Standard supply rated at PN 0.2 (higher pressure options available on request) |
|
Shell Test Pressure |
0.6 MPa (6.12 kg/cm²) |
|
Seat Test Pressure |
0.2 MPa (2.04 kg/cm²) |
|
Sealing System |
Flat seating faces with cotton canvas-reinforced natural rubber door faces |
|
Flange Drilling Standards |
Standard: IS 1538 (Table 4 & 6) / BS EN 1092-2 PN 10 Optional: BS 10 Table D / ASME B16.1 Class 125 / IS 6392 |
Material Breakdown by Valve Size
- Small Sizes (DN 50 mm – 150 mm):
- Housing, Seat & Strainer: Cast Iron
- Door & Door Plate: Cast Iron (Single Door design)
- Sealing Face: Natural Rubber reinforced with cotton canvas
- Medium Sizes (DN 200 mm – 450 mm):
- Housing, Seat & Strainer: Heavy-duty Cast Iron
- Door & Door Plate: Cast Iron (Double Door design)
- Hinge Pin: Corrosion-resistant Stainless Steel AISI 410
- Sealing Face: Reinforced Natural Rubber
- Large Sizes (DN 500 mm – 600 mm):
- Housing, Seat & Strainer: Mild Steel (MS) Fabricated construction
- Door & Door Plate: MS Fabricated (Double Door design)
- Hinge Pin: Stainless Steel AISI 410
Key Operational Benefits
- Automatic Pump Priming: Retains the liquid column inside the suction line when the pump stops, eliminating manual re-priming delays.
- Low Friction Head Loss: Specially contoured valve body interior allows maximum fluid passage with minimal head loss.
- Debris Protection: Integrated bottom strainer mesh screens out suspended particles and foreign solids before they enter the pump inlet.
- Leak-Tight Closure: Canvas-reinforced rubber door faces seat against flat metal surfaces to guarantee dependable sealing under low-pressure conditions.
Primary Industrial & Municipal Applications
- Municipal Infrastructure: Raw water intake sumps, clear water pumping stations, and urban water distribution mains.
- Power & Heavy Industry: Cooling tower sump lines and auxiliary water circuits in thermal power plants (NTPC-approved applications).
- Agriculture & Irrigation: Canal lift irrigation systems, agricultural pumping units, and river water extraction schemes.
