IBR Approved Valves

IBR Check Valve (Horizontal, Flanged) IS 778 Class-1

Name: IBR Check Valve Horizontal Flanged IS 778 Class-1
Brand: Supreme Valves India
SKU: SV-IBR-CHECK-FLANGE
Availability: InStock
Rating: 4.7 (2 reviews)

Premium IBR approved Cast Iron check valve with flanged ends, conforming to IS 778 Class-1 design standard. Features swing type disc with bolted cover and horizontal design. Flanges to IS 1538 for large diameter boiler applications.

Test Pressure (Hydrostatic)

Shell: 2.4 MPa
Seat: 1.5 MPa
Max Working Temp: 230C

IBR Approved

Boiler Feed Water Large Diameter

Flanges to IS 1538. Bolted cover for easy maintenance. Complete IBR documentation.

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Salient Features

IBR Approved for boiler feed water applications
Flanged Ends to IS 1538
Swing Type Disc Design
Bolted Cover for easy maintenance
Design Standard IS 778, Class-1
SS 304 Overlay on Disc for extended life

Materials of Construction (MOC)

Component	Material Specification
Body & Bonnet	Ductile Iron (ASTM A536 / EN-GJS-400-15)
Stem / Spindle	SS 410 / SS 420
Seat / Trim	EPDM / NBR / Bronze

Technical Specifications

Parameter	Specification / Standard
Manufacturing / Design Standard	EN 1171 / AWWA C509 / BS 5163
Testing Standard	API 598 / EN 12266-1
Pressure Rating	PN16 / PN25

Sizes / Dimensions

Size (Inches)	Size (mm)	L (Face to Face)	H ~	W ~	Flange OD ~
1.5	40	130	180	120	130
2	50	150	200	140	145
2.5	65	170	225	160	165
3	80	190	255	180	185
4	100	210	290	210	210
5	125	250	340	250	250
6	150	280	385	290	285
8	200	330	470	350	345
10	250	380	560	420	405
12	300	430	650	490	460

~ +/-10

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Frequently Asked Questions

What is a bolted cover check valve?

A bolted cover check valve has a cover that is attached with studs and nuts, providing a secure, leak-proof joint that can be disassembled for maintenance. The bolted cover design is used for larger valves and provides better structural integrity compared to screwed covers.

What are the applications of IBR Check Valve flanged?

IBR Check Valves with flanged ends are used in large diameter boiler feed water lines, steam distribution systems, and power plant applications. They prevent backflow and protect pumps and other equipment. The swing type design with bolted cover provides reliable operation and easy maintenance.

What materials are used in IBR Check Valve flanged construction?

IBR Check Valves flanged use Cast Iron (IS 210 FG200) for body and cover, FG200 with SS 304 overlay for disc, and SS 410 for hinge. The flanges conform to IS 1538 dimensions. These materials provide excellent strength and corrosion resistance for boiler applications.

Where can I buy large diameter IBR Check Valves?

Supreme Valves India supplies large diameter IBR approved check valves from Ahmedabad, Gujarat. Available sizes 1.5 to 12 inches (40mm to 300mm) with flanged connections. Complete IBR documentation provided. Export to UAE, Saudi Arabia, Qatar, Oman, Kuwait. Contact: +91 97732 78770.

What is the advantage of SS 304 overlay on disc?

SS 304 overlay on the disc provides excellent sealing surface that resists wear and corrosion. This extends the valve life and ensures reliable sealing even after many cycles of operation. The overlay can be re-machined if needed during maintenance.