FLOMECH VALVES
GST : 19AFQPP1276G1ZZ

Flap Type Check Valve

Name: Flap Type Check Valve
Brand: FLOMECH VALVES

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MOQ : 1 Piece

Flap Type Check Valve Specification

Connection Type
Flanged End

Valve Type
Check Valve

Material
Cast Iron, Ductile Iron, Stainless Steel (as per design)

Sealing
Resilient Seated/Soft Seat

Application
Flow control in water supply, wastewater, irrigation, and industrial fluid pipelines

Structure
Flap Type Body with Hinged Disc

Type
Swing Type Flap Check Valve

Pressure
PN10, PN16 (Customized on request)

Port Size
50mm to 600mm (2 to 24)

Disc
Ductile Iron / Cast Iron / Rubber Coated

Pin
Single Hinge Pin

Operating Principle
Automatic closure by reverse flow

Gasket Material
EPDM/NBR Rubber

Leakage Rate
Zero leakage (soft seated standard)

Installation Orientation
Horizontal or Vertical (flow upwards)

Face-to-Face Standard
As per EN 558 / ISO 5752 / DIN 3202

Application Area
Water Treatment Plants, Sewage Systems, Pumping Stations

Body Coating
Fusion bonded epoxy or powder coated

Max Working Pressure
16 Bar (PN16)

Flap Type Check Valve Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
1 Piece Per Day

Delivery Time
15 Days

About Flap Type Check Valve

Established in the year 1992, we provide our precious clients an extensive range of Flap Type Check Valve. This valve is best suitable to fit with water pipe lines for controlling pressure of water. Offered valve finds its applications in swimming pools, storage tanks, and many more. The offered valve is manufactured by our diligent experts using quality approved raw materials and advanced techniques. Available in numerous models and other specifications, clients can purchase this Flap Type Check Valve from us at industry leading prices.

Features:

High strength
Application specific structure
Withstand high pressure
Rust resistance

Product Specification

FLAP TYPE CHECK VALVES

Soft Rubber Moulded Carbon Steel Disc.

Valves Body Lined With Natural / Synthetic / Hard Rubber.

Flanges are as per IS: 1538, Table-4 & 6.

Alternate Flange also available.

Materials Of Construction:

	Body	Grey Cast Iron IS:210, FG-200
	Bolts & Nuts	H.T. Carbon Steel
	Disc	Soft Rubber Moulded Carbon Steel
	Dome	Grey Cast Iron IS:210, FG-200
	Rubber Lining	Natural / Synthetic / Hard Rubber
*Hydrostatic Test Pressure in Kg/Cm² (PSI)*
SIZE			Shell	Seat
15mm to 300mm			15 (214)	10 (143)

DIMENSIONS ARE IN MM

Size (MM)		25	40	50	65	80	100	125	150	200	250	300
Face to Face	A	160	200	230	290	310	350	400	480	600	730	850
Lining Thickness	t	3	3	3	3	3	3	3	4	4	5	5

Alternative arrangement can be provided are as under:

With Rubber lining Body.

Superior Backflow Prevention

Employing a resilient soft-seated design, this flap type check valve ensures zero leakage even under high pressures. The automatic closure mechanism is activated by reverse flow, providing reliable, maintenance-friendly protection in critical water, sewage, and fluid transport applications.

Durable Construction and Coating

Each valve body undergoes fusion bonded epoxy or powder coating, guarding against corrosion and extending service lifeideal for harsh operating conditions. Multiple body materials, including cast iron and ductile iron, allow for tailored performance based on system demands.

Versatile Installation & Operation

Designed to fit easily into new and existing pipelines, the flap check valves flanged ends and compliance with EN 558, ISO 5752, and DIN 3202 face-to-face standards ensure compatibility. Its vertical and horizontal installation flexibility meets a range of pipeline configuration needs.

FAQs of Flap Type Check Valve:

Q: How does the flap type check valve prevent water backflow in pipelines?

A: The valve automatically closes its flap (hinged disc) when reverse flow is detected, preventing water or wastewater from flowing back into the system. This automatic mechanism ensures secure one-way flow and dependable backflow prevention.

Q: What are the primary benefits of using a soft-seated, resilient sealing check valve?

A: Soft-seated valves offer zero leakage, minimizing water loss and potential contamination. This resilience also ensures tight sealing, reduces maintenance frequency, and extends service lifeespecially in water treatment or sewage applications.

Q: Where can this check valve be installed, and what are its suitable orientation options?

A: The flap type check valve is suitable for installation in water treatment plants, sewage systems, pumping stations, irrigation networks, and industrial fluid pipelines. It can be installed in both horizontal pipelines and vertical pipelines with upward flow, providing versatile system compatibility.

Q: What materials and coatings are available for the valve body and disc?

A: Valve bodies are crafted from cast iron, ductile iron, or stainless steel, depending on system requirements. Protective coatings such as fusion bonded epoxy or powder coating are applied for enhanced resistance to corrosion and abrasion, increasing overall longevity.

Q: When should an operator choose a flap type check valve with a soft seat design?

A: Operators should opt for a soft-seated flap check valve when zero leakage is crucialsuch as in potable water supply, wastewater management, or irrigation systemswhere fluid integrity and environmental safety are essential.

Q: What gasket materials are used, and why are they important?

A: Gaskets are typically made from EPDM or NBR rubber, both known for chemical resistance and durability. The right gasket ensures a reliable seal even under varying pressures and fluid types, supporting consistent, leak-free operation.