Flanged Gate Valve

A flanged gate valve isolates larger water, steam and process pipes and bolts into flanged lines.

A flanged gate valve isolates larger water, steam and process pipes and bolts into flanged lines.

Flanges make removal easy. Therefore, it suits pump stations and plant rooms.

What is a flanged gate valve?

A gate valve opens and closes by raising or lowering a flat or wedge-shaped gate across the flow. When fully open, the gate leaves a straight, full bore, so pressure loss is very low.

Gate valves are made for isolation, not throttling. Sluice valves are large gate valves for water mains, resilient seated types seal on rubber, and knife gate valves cut through slurry.

Further reading

Key terms explained

Wedge gate
A tapered gate that seals against two seats.
Resilient seat
A rubber-coated gate that seals tightly without a seat recess.
Rising stem
A stem that rises as the valve opens, showing its position.
PN rating
Pressure Nominal: the pressure class in bar at reference temperature, such as PN16.
Class 150 and 800
American pressure classes. Class 800 is common for small forged steel valves.
End connection
How the valve joins the pipe: threaded, flanged, wafer, socket weld or clamp.

Features and benefits

  • Full bore with low pressure loss when open.
  • Tight shut-off for isolation.
  • Threaded and flanged types.
  • Bronze, brass, cast iron, ductile iron and steel bodies.
  • Long service life when used fully open or closed.

Technical specifications

Product Flanged gate valve
Ends Flanged
Bodies Cast iron, ductile iron or steel
Sizes and drilling Confirm with quote
Supplier Sparks Plumbing Experts Ltd, Nairobi
Supplier Sparks Plumbing Experts Ltd, Nairobi

Sizes, grades and ratings depend on stock and model. Tell us what you need, and we will confirm before you order.

Applications of a flanged gate valve

  1. Water mains. Isolates distribution and trunk mains.
  2. Building risers. Isolates floors and risers.
  3. Pump stations. Isolates pumps for service.
  4. Fire mains. Isolates fire water sections where specified.
  5. Boreholes. Isolates borehole delivery lines.
  6. Irrigation mains. Isolates irrigation blocks.
  7. Steam and oil lines. Steel gate valves isolate steam and fuel.
  8. Tank outlets. Isolates storage tanks.
  9. Wastewater. Knife gates isolate sludge lines.
  10. Industrial plants. Isolates process lines.
  11. Hotels and hospitals. Isolates plant room pipework.
  12. Water meters. Isolates meters for service.

How to choose and install

  • Use gate valves for on/off isolation, not throttling.
  • Choose body material and rating for the fluid and pressure.
  • Choose resilient seated valves for clean water mains.
  • Choose knife gates for slurry and solids.
  • Exercise valves regularly so they do not seize.

Why choose Sparks Plumbing Experts

  1. Valves, flanges and gaskets togetherComplete a pipeline joint with matching valves, flanges, gaskets and bolts.
  2. Pressure-rated optionsMany items come in PN16, class 150 or class 300 ratings, so you can match the line.
  3. Stainless and carbon steelChoose stainless for corrosion resistance or carbon steel where it suits the service.
  4. Plant maintenance sparesKeep critical spares on hand for planned shutdowns and breakdowns.
  5. Visit or collect in NairobiOur store is at KCB Building, Enterprise Road, in the Industrial Area, so you can see parts before you buy or collect your order.
  6. Quotes your wayAsk for prices by phone, WhatsApp, email or the online quote form, whichever suits you on site.
  7. Over 1,600 products in one placeOur catalogue covers 55 categories, so one supplier can handle most of your parts list.
  8. Help choosing the right partSend a nameplate photo, a drawing or the old part, and we help you match size and specification.
  9. Single items or project quantitiesWe price a single replacement part just as readily as a full site order.
  10. Supply across East AfricaWe serve customers across Kenya, and we also supply buyers in Uganda and Tanzania.

Related products and accessories

Browse more: Valves · Flanges · Gaskets · Industrial Piping Systems.

Ordering from Sparks Plumbing Experts

We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. You can collect from our store at KCB Building, Enterprise Road, Nairobi, or ask us about delivery to your site. Send your quantities and specifications, and we will reply with prices and availability.

Request a Quote WhatsApp 0726 086 895

Frequently asked questions

Which flange drilling do you supply?

PN10, PN16 or class 150, depending on model. Confirm with us.

What details do you need to quote gate valves?

Tell us the size, end connection, pressure rating, body material and the fluid and temperature. A photo of the old part, a nameplate or a drawing also helps. Then call or WhatsApp 0726 086 895, or use the quote form on this page.

Do you deliver gate valves outside Nairobi?

Yes. We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. Delivery or courier arrangements are agreed when you confirm the order.

How much does a gate valve cost in Kenya?

The price depends on the type, size, material, pressure rating and quantity. Therefore, send your list with a quote request and we will reply with current figures.

What does PN16 mean on a valve?

It means a nominal pressure rating of 16 bar at reference temperature. At higher temperatures the allowed pressure is lower, so check the rating table.

Flanged or threaded: which do I need?

Threaded ends suit small sizes, usually up to 2 inch. Flanged ends suit larger sizes and make removal easier.

Can a gate valve throttle flow?

It should not. Part-open gates vibrate and wear.

How many turns does a gate valve take?

Several turns, depending on size.

Why does a gate valve leak at the stem?

Worn packing. Tighten the gland nut or repack it.

People also search for

sluice valve vs gate valve

A sluice valve is a gate valve, usually large and used on water mains.

resilient seated gate valve

It seals with a rubber-coated gate, giving tight shut-off on water.

knife gate valve uses

Slurry, sludge, pulp and solids-laden lines.

Gate valves price in Kenya

Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.

gate valve vs ball valve

A ball valve shuts with a quarter turn. A gate valve takes several turns but gives a full, straight bore.

globe valve vs gate valve

A globe valve throttles flow well. A gate valve is for full open or full close.

PN16 meaning

PN16 means a nominal pressure rating of 16 bar at reference temperature.

flanged vs threaded valve

Threaded valves suit small sizes. Flanged valves suit larger sizes and easy removal.

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