Constant Downstream Pressure Flow Control Valve
MODEL NO.: GL400X


Δ The KARFAR model GL400X is a reliable flow control valve designed for water distribution systems where precise flow regulation is essential. This valve ensures a stable and consistent flow rate by using a pilot mechanism that adjusts the pressure on the upstream side to maintain the desired downstream flow. It effectively reduces high flow rates to a pre-set value, providing a controlled and safe operation even under fluctuating pressure conditions.
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 This valve is ideal for industrial, municipal, and residential water supply systems, ensuring efficient and consistent performance. With certifications like ISO and CE, it meets international quality and safety standards. The GL400X is suitable for use with water, oil, and other compatible media, operating within a temperature range of up to 80°C. It comes in various sizes from DN50 to DN800, making it adaptable for different applications. The packaging includes bubble plastic and wooden cases for secure transportation. The product is manufactured in China and is identified by HS Code 84818010.
MODEL NO.: GL400X


Δ The KARFAR model GL400X is a reliable flow control valve designed for water distribution systems where precise flow regulation is essential. This valve ensures a stable and consistent flow rate by using a pilot mechanism that adjusts the pressure on the upstream side to maintain the desired downstream flow. It effectively reduces high flow rates to a pre-set value, providing a controlled and safe operation even under fluctuating pressure conditions.
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Body & Bonnet | Cast iron, Ductile iron, Cast steel, Stainless steel etc |
Stem | Stainless steel |
Disc | Brass, Carbon steel, Ductile iron etc |
Seat | Brass, Stainless steel, Carbon steel etc |
Sealing | NBR etc |
Diaphragm | NBR, EPDM |
Piston | Brass, Carbon steel, Ductile iron etc |
Pressure Grade | PN10, PN16, PN25, PN40, CL150, CL300 |
Size | DN50-DN800 |
Flange Dimension | ASME B16.42, BS4504, ISO2531, ISO7005 etc. |
Face to Face Length | ANSI B16.11, API594,BS5155, ISO5752, DIN3352 etc. |



 This valve is ideal for industrial, municipal, and residential water supply systems, ensuring efficient and consistent performance. With certifications like ISO and CE, it meets international quality and safety standards. The GL400X is suitable for use with water, oil, and other compatible media, operating within a temperature range of up to 80°C. It comes in various sizes from DN50 to DN800, making it adaptable for different applications. The packaging includes bubble plastic and wooden cases for secure transportation. The product is manufactured in China and is identified by HS Code 84818010.
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