Non Return Valve

Our product range includes a wide range of normex ball check valve, silent check valve, ball type non return valve, cast iron non return valve and ss non return valve.

Normex Ball Check Valve

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Approx. Rs 750 / PieceGet Latest Price

Product Details:

Brand	Normex
Size Range	25 mm to 100 mm (Up to 350 mm in Flanged Ends)
Pressure Rating	PN 1.6
Temperature	Up to 80 C
Installation	Horizontal or Vertical
Model	B-06

Ball Type Check Valves is a non return valve with a very simple and robust design. The heart of the valve is rubber coated ball. The hinge-pin-disc mechanism used in conventional check valves, which is the cause of most operation and maintenance issues such as pressure drop, imperfect sealing, leakage, clogging, etc., is eliminated.

As the pump starts, the ball moves out totally from the flow path, giving a full bore with maximum flow discharge and minimum head losses. As the pump stops, the ball rolls back and seats perfectly on the rounded valves seat ensuring totally leak proof sealing.

Salient Features:

Lowest possible pressure drop across all types of check valves.
100% leak proof sealing years over years.
Non-clogging and self cleaning as ball rotates during operation.
Virtually no wear and tear, no maintenance and longer service life.
Higher solid handling capacity due to full bore and straight internal path.
Lower head loss-high discharge, reduced pumping time - All leading to Energy Savings.

Applications:

Clean water, Raw water, Sewage, Slurry, Waste Water, Viscous liquids etc.

Used in industries like:

The typical applications are domestic pumping and irrigation systems.

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Silent Check Valve

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Approx. Rs 2,500 / PieceGet Latest Price

Product Details:

Brand	Normex
Media	Air, Water, Inert Gases
Pressure Rating	PN 1.0
Temperature	Up to 80 C
Installation	Vertical/Horizontal
Model	H-01
Body Material	Cast Iron (CI)
Size	40 mm to 400 mm

Silent Check Valves are short length double flanged valves with all the internals designed to be hydrodynamic. When open, these valves have a flow area equal to the nominal bore area. Therefore, unlike other spring loaded valves conventional flapcheck valves, these valves offer lower head losses maintain laminar flow. The valve closes due to return spring force, valve is “Quick Closing”. The valve gets closed before the start of back flow / return velocity. Hence, water hammer is eliminated in most of the cases.

Features:

1. Working principal Hydrodynamic guided closing.
2. The closing mechanism is guided backed with return spring for quick closing, opening and perfect sealing.
3. Due to Aero/hydro dynamic effect water hammer is eliminated.
4. Very low pressure loss
5. Most suitable for clear liquids air.
6. Silent operation.

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Ball type Non Return Valve

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Approx. Rs 2,500 / PieceGet Latest Price

Product Details:

Size Range	25 mm to 350 mm
Pressure Rating	PN 1.6
Temperature	Up to 80 C
Installation	Horizontal or Vertical

Lowest possible pressure drop across all types of check valves.
100% leak proof sealing years over years.
Non-clogging and self cleaning as ball rotates during operation.
Virtually no wear and tear, no maintenance and longer service life.
Higher solid handling capacity due to full bore and straight internal path.
Lower head loss-high discharge, reduced pumping time - All leading to Energy Savings.

Applications:

Clean water, Raw water, Sewage, Slurry, Waste Water, Viscous liquids etc.

Used in industries like:

Fire fighting, Plumbing, Water distribution, Water/Sewage treatment, Irrigation/agriculture, Sewage plants, Steel mills, Power stations, Chemical/process industries, HVAC, Sugar/food industry, Breweries, Mining and many more.

This valve is also available with optional rubber lining.

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Cast Iron Non Return Valve

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Approx. Rs 1,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity	1 Piece
Model Name/Number	CI Reflux valve
Size	50mm to 1000mm
Material	Cast Iron
Brand	FLOMAX
Valve Size	50mm to 1000mm
Media	Water
End Connection	Flanged
Design Type	Swing/Flap Type
Features	with Bypass Line (Optional)
Color	Black
Connection Type	Flanged Ends
Corrosion Resistance	Epoxy Painted
Maximum Working Temperature	Ambient
Packaging Type	Loose

Non Return valves are mostly used to maintain flow of water in only one direction and stop the return flow of water. These valves are self operative by pressure only.These valves can be fitted horizontally as well as vertically and are used on main water pipelines.
MATERIALS
All parts are manufactured out of best available graded materials after proper testing.
Materilas used for different parts are detailed below:

PART NAME	MATERIAL	SPECIFICATION
Body, Cover, Door, Bearing Holder, Door Face Disc & Hinges	Cast Iron	IS: 210 FG 200
Bearing Bushes & Body Rings	Bronze (Gun Metal)	IS: 318 LTB
Bolts, Nuts, Nuts of Hinge Pin	Carbon Steel	IS: 1363 – 67
Gaskets	Rubber	IS: 638
Hinges Pin, Door Pin, Door Suspension Pin	High Tensile Brass	IS: 320 IS: 6912

TESTING AND CERTIFICATE
All valves are tested to the Hydraulic pressure recommended by IS: 5312 and as detailed below. Test certificate duly signed by quality control engineer are issued by for all the valves. All valves are "ISI" marked & certified