IBR Approved Valves

IBR Gate Valve (Flanged) IS 778 Class-1

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

Premium IBR approved Cast Iron gate valve with flanged ends, conforming to IS 778 Class-1 design standard. Features non-rising stem with flexible wedge and flanges to IS 1538. Designed for large diameter boiler feed water 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. Complete IBR documentation (Forms III, VII, VIII) provided.

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Salient Features

IBR Approved for boiler feed water applications
Flanged Ends to IS 1538
Non-Rising Stem, Flexible Wedge
Bolly in Bonnet Design
Design Standard IS 778, Class-1
SS 304 Seat Ring for improved sealing

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	140	280	160	130
2	50	150	300	180	145
2.5	65	170	340	200	165
3	80	180	380	220	185
4	100	200	430	250	210
5	125	225	500	280	250
6	150	250	560	320	285
8	200	300	680	380	345
10	250	350	800	450	405
12	300	400	920	520	460

~ +/-10

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Purchase Options

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Frequently Asked Questions

What is a flanged gate valve?

A flanged gate valve has flat-faced flanges on both ends that connect to the pipeline using bolts and gaskets. Flanged connections provide a secure, leak-proof joint that can be easily disassembled for maintenance. Flanges conform to IS 1538 standard dimensions.

What are the applications of IBR Gate Valve flanged?

IBR Gate Valves with flanged ends are used in large diameter boiler feed water lines, steam distribution systems, and power plant applications. They are IBR approved for use in Indian boiler installations and are suitable for water, steam, and oil services in industrial settings.

What materials are used in IBR Gate Valve flanged construction?

IBR Gate Valves flanged use Cast Iron (IS 210 FG200) for body and bonnet, SS 410 for stem, and FG200 with SS 304 seat for wedge. The flanges are to IS 1538 dimensions. These materials provide excellent strength and corrosion resistance for boiler applications.

Where can I buy large diameter IBR Gate Valves?

Supreme Valves India supplies large diameter IBR approved gate 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 difference between flexible wedge and solid wedge gate valves?

Solid wedge gate valves have a one-piece solid wedge that provides superior strength but may have difficulty sealing at high temperatures. Flexible wedge gate valves have a two-piece wedge design that can adjust to temperature variations and provide better sealing. Flexible wedge is preferred for steam applications.