Flange End Gate Valve

Flanged OS&Y Gate Valve delivers efficient operation and exceptional service life in water-based systems. The rising stem (OS&Y) mechanism allows for easy maintenance, lubrication, and instant status verification. Its robust ductile iron body offers excellent corrosion resistance, making it a cost-effective and reliable solution for flow control in waterworks, pumping stations, and general industrial water piping.

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Product Introduction

Our flange end gate valve is a durable and reliable solution for water control in construction projects, industrial plants, wastewater treatment facilities, and water supply systems. Designed to meet GB, BS, and ANSI standards, this valve comes in sizes DN50 to DN300 with pressure ratings of PN10, PN16, and PN25, ensuring high performance in demanding environments. Its robust ductile iron construction provides excellent corrosion resistance and long service life, making it ideal for heavy-duty applications. With smooth operation and tight sealing, flange end gate valve valve is a top choice for fluid control systems where reliability matters most.

Product Parameter

Product Name:Flange End Gate Valve

Connection:Flange End

Body Material:Cast Iron

Standard:ANSI/GB/BS

Size:2" to 12"

Working Pressure:16bar

Color:Red/Blue

Working Temperature:0℃ to 80℃

Surface Finishing:Epoxy Paint Coating

Application Medium:Water

Product Material

Part	Material
Part	Standard	Optional
Body	Ductile Iron QT450-10
Stem	2CR13 Stainless Steel	201 Stainless Steel
Bonnet	Ductile Iron QT450-10
Handwheel	Ductile Iron QT450-10
Disc	Ductile Iron QT450-10,Covered By EPDM
Nut	Ductile Iron	Brass
Bolt	Ductile Iron	Brass
O-Ring	NBR	EPDM

FAQ

Q1: What is a flange open rod gate valve used for?

This valve helps control liquid flow in pipes, like in water systems or factories. It has flanges for easy connection and an open rod to show if it's open or closed. People choose it because it's simple to use and lasts long in tough conditions. Regular checks keep it working well, making it a reliable choice for many jobs.

Q2: How can I instantly verify if your flanged gate valve is fully operational?

Our externally threaded rising stem provides clear visual confirmation:
Extended stem height = Valve fully open
Retracted stem position = Valve fully closed
This feature is critical for safety inspections in chemical processing plants.

Q3: How long do your gate valves last?

Made with thicker ductile iron and anti-rust coating, our valves last over 15 years with normal use. The stainless steel stem ensures smooth operation, perfect for water treatment plants or irrigation systems.

Q4: How does the rising stem design benefit users?

The visible stem position allows instant status checks (open/closed), reducing operational errors. Its grease-packed gland requires zero maintenance for 3-5 years under normal conditions

Q5:How do rising stem valves compare to non-rising stem types?

Feature	Rising Stem	Non-Rising Stem
Position Visibility	✅ Real-time confirmation	❌ Requires indicator wheel
Maintenance	❌ Exposed threads need care	✅ Enclosed design
Space Needed	❌ 30cm overhead clearance	✅ Compact for tight spaces
Failure Risk	✅ No internal stem corrosion	❌ Hidden thread wear risks

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