Gate Valves Supplier in Pakistan

Gate valves isolate flow by raising and lowering a wedge-shaped gate across the bore. They are built for full-open or full-close service — not throttling — and give minimal pressure drop when fully open, which makes them the standard isolation valve on pipelines carrying water, steam, oil and gas. A. Karimjee & Sons supplies gate valves in wedge and stem configurations to API 600 and equivalent standards.

Gate Valve Specifications

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Gate Valve Specifications
Valve type	Gate Valve — full open/close isolation
Types available	Solid Wedge, Flexible Wedge, Rising Stem, Non-Rising Stem
Body materials	Carbon Steel, Stainless Steel (SS304 / SS316), Cast Steel, Cast Iron, Ductile Iron, Brass
End connections	Flanged, Butt Weld, Threaded [confirm]
Size range	[confirm]
Pressure class	[confirm]
Standards	API 600, BS 1873 and applicable ANSI, ASME, ASTM, DIN, ISO

Types We Supply & How to Choose

Gate Valve Types

Selection guide

Solid Wedge: Simple and robust; suits general and turbulent service.
Flexible Wedge: Copes with thermal expansion without binding — a good choice for steam lines.
Rising Stem: Stem rises as the valve opens, giving clear position indication; common above ground where headroom allows.
Non-Rising Stem: Stem stays put, so it suits buried lines and space-restricted installations.

Oil & Gas
Petrochemical
Chemical Processing
Water Treatment
Power Generation
Marine
HVAC
Food & Beverage
General Industry

Key Features & Benefits

Minimal pressure drop when fully open
Reliable, positive isolation
Durable construction for demanding service
Well suited to large pipelines
Bidirectional flow
API 600 / BS 1873 designs available

Frequently Asked Questions

Can a gate valve be used to throttle flow?

No. Partial opening causes vibration and seat erosion. Gate valves should be either fully open or fully closed; use a globe valve for throttling.

What is the difference between rising and non-rising stem gate valves?

On a rising stem valve the stem moves up as the valve opens, showing position at a glance and needing headroom. On a non-rising stem valve the stem does not rise, which suits buried lines and tight spaces.

What does API 600 mean?

API 600 is the standard specification for bolted-bonnet steel gate valves used in petroleum and gas industries, covering design, materials and testing.

Need gate valves for isolation duty? Send the size, material, pressure class and end type — we'll confirm availability.

Request a quote +92-21-32422431