Gate Valve With Rising Stem
Gate Valve With Rising Stem

Gate Valve with Rising Stem

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Product Introduction

Product Overview

Gate Valve With Rising Stem provides reliable on/off flow control for industrial and municipal pipelines. The rising stem clearly indicates valve position, helping operators identify open/closed status from a distance. The outer screw and yoke (OS&Y) design keeps the stem threads isolated from the flow, reducing corrosion and maintenance needs.

It is widely used in water supply, water treatment, HVAC, and fire protection systems where reliable, zero-leakage shut-off performance is required.

Gate Valve With Rising Stem

Product Parameter

Item	Details
Brand	Keylion®/OEM
Product Name	Gate Valve With Rising Stem/flange outside screw & yoke gate valve
Connection	Flange End
Main Material	Ductile Iron
Standard	ANSI/GB/BS
Size Available	2"-12"/DN50-DN300
Working Pressure	1.6MPA
Color	Red/Blue/Customized
Working Temperature	0℃ to 80℃ (32℉ to 176℉)
Surface Finishing	Epoxy Paint Coating
Application Medium	Water
Warranty	3 Year
Packing	Export Wooden Carton

Product Material

Part	Material
Part	Standard	Optional
Body	Ductile Iron QT450-10
Stem	SS420 (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

Key Features

Rising stem provides clear visual indication of valve open/closed position from a distance.

EPDM-encapsulated ductile iron disc supports reliable sealing performance under standard operating conditions.

Fusion-bonded epoxy coating applied internally and externally improves corrosion resistance and is suitable for potable water systems.

OS&Y (outer screw and yoke) design keeps stem threads isolated from the flow medium, reducing wear and corrosion risk.

Multiple O-ring sealing structure improves stem sealing performance and reduces maintenance requirements.

Standardized flange dimensions ensure compatibility with existing pipeline systems and international installation standards.

Quality Assurance & Testing

Pressure Test

Every valve is hydrostatically tested before coating and shipment (Shell test at 2.4 MPa, Seat test at 1.76 MPa) in accordance with ISO 5208.

Coating Inspection

We test the epoxy coating thickness using digital gauges to ensure it meets the minimum requirement of 250 microns, preventing pinholes and early corrosion.

Traceable Heat Numbers

Each ductile iron body casting is stamped with a heat number for raw material batch traceability.

Packaging & Export

Sea-worthy export plywood cases (fumigation-free)

Plastic end caps protect flange faces and internal sealing surfaces

Suitable for long-distance ocean and land transportation

Each shipment includes packing list and commercial invoice

Certificate of origin available upon request

Maintenance & Spare Parts

To support long-term operation:

O-ring seals are replaceable for extended service life

Stem nut and handwheel components are available as spare parts

Recommended inspection cycle: 12–24 months depending on working conditions

FAQ

Q: Which international standards do your ductile iron gate valves comply with?

A: Our valves are designed and manufactured in strict compliance with AWWA C515, BS EN 1171, or DIN 3352, with flange drillings matching ANSI B16.1, EN1092-2, or BS4504.

Q: Are your valves safe for drinking/potable water systems?

A: Yes, our internal and external fusion-bonded epoxy coatings, as well as the EPDM-wrapped discs, use non-toxic materials compliant with international drinking water safety guidelines.

Q: Do you provide pressure test reports and material certificates?

A: Yes, every shipment includes official hydro-pressure test reports and material certificates traceable to the valve production batch.

Q: What is your standard lead time for wholesale orders?

A: Standard bulk orders are typically completed and ready for shipment within 30 to 45 days, depending on the specific size and total volume.

Q: Do you support OEM or custom color options?

A: Yes, we provide full OEM services. Valve body colors can be customized (such as RAL5017 Blue or RAL3000 Red) to match your specific market or brand requirements.

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