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Gate Valve

FGA_O20_NS21

Model FGA_O20_NS21
Fast reliable quater-turn shut-off
FGA_O20_NS21
FGA_O20_NS21

Summary Card

FunctionOn-Off isolation
Stem typeNon-rising stem (NRS)
RangeDN 15 – 50
ConnectionISO 228
Material (Body)Bronze CC491K
Temperature range'-10 to 85 °C
Max. working pressure PN 20
MediaPotable water
Approval WRAS-approved
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Info

Use: On-off isolation
Avoid: Throttling and regulation

Why This Valve

WRAS approved

WRAS approved

Ready for drinking water

Full flow isolation

Full flow isolation

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Tight shut-off

Tight shut-off

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Built for demanding systems

Built for demanding systems

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Product Overview

The FIVC Bronze Gate Valve is designed for dependable full-flow isolation in potable water systems.
Its straight-through design ensures minimal pressure loss, while the solid bronze construction delivers long-term durability and tight shut-off performance.

Technical Specifications

FunctionOn-Off isolation
Stem typeNon-rising stem (NRS)
Bonnet typeScrewed bonnet
StandardBS EN 5154
ConnectionISO 228
External operationHandwheel
Testing standards"BS EN 12266-1 Shell test pressure: 3.0 MPa Sealing pressure: 2.2 MPa"

Materials

BodyBronze CC491K
BonnetBronze CC491K
WedgeBronze CC491K
StemDZR Brass CW602N
SeatBronze CC491K (integral in body)

Field of Application

Temperature range-10 to 85 °C
Max. working pressure PN 20
MediaPotable water
Approval WRAS-approved

Key Features

Corrossion resistanceOf durable materials, exhibiting excellent corrosion resistance.
WRAS-approvedCertified for potable water installations and compliant with drinking water regulations.
Optimized flow efficiencyStraight-through bore minimizes pressure loss, supporting energy-efficient system operation.
Reliable mechanical operationNon-rising stem design ensures secure operation in confined installations.
Secure shut-off Provides tight isolation for secure system operation.

Usage & Applications

UsageFlow isolation. Avoid throttling and regulation
ApplicationsPotable water, HVAC, Plumbing, Chilled Water, Filtration, Irrigation, Water management

Declaration

EN 1092-2

Full Technical Data

Datasheet
Datasheet
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2D Drawing
2D Drawing
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Quick Dimensions

FGA_O20_NS21
Size L D H d Kg
15 49.5 52 74 12.7 0.27
20 53.5 52 85 19.1 0.40
25 62 70 106 25.4 0.59
32 70 70 113 31.8 0.86
40 77 92 132 38.2 1.27
50 87 92 155 50.9 1.90

Full Technical Data

Datasheet
Datasheet
Download
2D Drawing
2D Drawing
Download
FGA_O20_NS21
N° Name Material
1 Body Bronze CC491K BS EN 1982
2 Bonnet Bronze CC491K BS EN 1982
3 Stem DZR Brass CW602N BS EN 12164
4 Disc Bronze CC491K BS EN 1982
5 Stem bush DZR Brass CW602N BS EN 12164
6 Ring Brass CW614N BS EN 12164
7 Packing PTFE
8 Packing nut Brass CW614N BS EN 12164
9 ID plate Aluminium
10 Handwheel nut Brass CW614N BS EN 12164
11 Handwheel Aluminium
Frequently Asked Questions
What type of valve is this? +
It is a linear-operated gate valve designed for full-flow pipeline isolation. The valve operates by raising or lowering a wedge to open or close the flow path.
Is the valve CE marked? +
No. According to PED 2014/68/EU Art. 4.3, it is manufactured under Sound Engineering Practice (SEP) and therefore exempt from CE marking.
What stem types are available? +
The valve is available in both rising stem and non-rising stem configurations. What this means in practice: Rising stem: The stem moves upward when the valve opens, providing clear visual position indication. Non-rising stem: The stem remains in position while operating, making it suitable for installations with limited vertical space.
What is the advantage of a full-flow gate valve design? +
A gate valve: Provides minimal pressure loss when fully open Maintains full flow capacity Reduces unnecessary turbulence Supports efficient system operation This makes it ideal for isolation in systems where flow performance is important.
Can this valve be used for flow regulation? +
No. Gate valves are designed for isolation only and should be operated in fully open or fully closed positions. For continuous regulation or throttling, a globe valve or control valve is typically the better engineering choice.
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Need Help?

Get in touch with our experts

Your personal information will be processed in accordance with our Privacy Policy.
+45 69 15 25 00
mna@flowconivc.com