Features:
Size 1/2" to 2" Socket Weld
Body Forged Steel
Seat Metal
Pressure Range 0 to 136 BAR
Robust Class 800 A105 Forged Steel Gate Valve from 1/2" to 2" Solvent Weld with rising stem manual hand wheel. Suitable for pressures up to 136 Bar depending upon media temperature (See chart below) and type. Suitable for use across Petrochemical, Steam, Mining and Industrial applications Designed to API602 with Socket Weld ends to ASME B1.16.11 and tested to API598.
| Model | Size (Solvent Weld) | Design Pressure | Media Temperature | Weight (kg) |
|---|---|---|---|---|
| GVF8S-04 | 1/2" | 13.62 MPa @ -29°C ~ 35°C | 454°C @ 5.5 MPa | 2.22 |
| GVF8S-05 | 3/4" | 2.39 | ||
| GVF8S-06 | 1" | 4.24 | ||
| GVF8S-07 | 1 1/4" | 5.7 | ||
| GVF8S-08 | 1 1/2" | 7.05 | ||
| GVF8S-09 | 2" | 10.9 |
| Model | Size (Socket Weld) | L | H | Ø | A | B |
|---|---|---|---|---|---|---|
| GVFS8-04 | 1/2" | 79 | 155 | 100 | 9.5 | 21.8 |
| GVFS8-05 | 3/4" | 92 | 155 | 100 | 12.5 | 27.2 |
| GVFS8-06 | 1" | 111 | 176 | 125 | 12.5 | 33.9 |
| GVFS8-07 | 1 1/4" | 120 | 200 | 160 | 12.5 | 42.7 |
| GVFS8-08 | 1 1/2" | 120 | 220 | 160 | 12.5 | 48.8 |
| GVFS8-09 | 2" | 140 | 255 | 180 | 16 | 61.2 |
All dimensions in mm unless shown otherwise.
| NUMBER | NAME | MATERIAL |
|---|---|---|
| 1 | BODY | A105 |
| 2 | SEAT | 1Cr13 |
| 3 | DISC | 1Cr13 |
| 4 | STEM | 1Cr13 |
| 5 | BONNET GASKET | 201+FLEXIBLE GRAPHITE |
| 6 | BONNET | A105 |
| 7 | BONNET BOLT | A193 B7 |
| 8 | PACKING I | SOFT GRAPHITE |
| 9 | PACKING II | WIRE PACKING |
| 10 | PIN | 45# STEEL |
| 11 | PACKING BUSHING | 2Cr13 |
| 12 | PACKING PLATE | A105 |
| 13 | NUT | A194 2H |
| 14 | EYELET BOLT | A193 B7 |
| 15 | GASKET | 65Mn |
| 16 | STEM NUT | 35/1CR13 |
| 17 | HAND WHEEL | MALLEABLE CAST IRON |
| 18 | LOCK NUT | A194 2H |
Size 1/2" to 2" Socket Weld
Body Forged Steel
Seat Metal
Pressure Range 0 to 136 BAR
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What is a Class 800 Socket Weld Forged Steel Gate Valve?
A Class 800 forged steel gate valve is a manual isolation valve designed to start or stop the flow of media in a pipeline using a gate (wedge) that moves up and down inside the valve body. The valve is constructed from robust forged steel, which delivers superior strength, pressure capability and resistance to impact compared with cast body designs. This version features socket weld connections, meaning the pipe is inserted into the valve ends and welded in place, creating a smooth, leak-resistant joint ideal for high-pressure, high-temperature and critical service applications where threaded or flanged connections are not suitable.
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How does a Class 800 Socket Weld Forged Steel Gate Valve work?
A gate valve operates by moving a disc-shaped gate perpendicular to the flow path. Turning the hand wheel rotates the stem which either lifts the gate out of the way to allow flow or lowers it down to block the flow. When fully open, the gate retracts into the body, creating a full bore straight-through flow path with minimal resistance or pressure drop. These valves are designed for on/off isolation and are not suitable for throttling or flow regulation, as partially opening the gate can cause vibration, turbulence and accelerated wear on the seating surfaces.
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How long will my Class 800 Socket Weld Forged Steel Gate Valve last?
How long this valve will last depends on the application, media, operating conditions and how often it is cycled. The forged steel construction significantly increases strength and durability compared with cast valves, which makes Class 800 forged gate valves suitable for high-pressure and high-temperature environments, including steam, oil, gas and industrial fluid systems. When used within its design limits, a forged steel gate valve like this one can provide many years of reliable service. Regular operation (fully open/fully closed) and correct installation also help maximise valve performance and life.
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How do I install a Class 800 Socket Weld Forged Steel Gate Valve?
Before installation, ensure the pipeline is fully depressurised and drained. Because this valve has socket weld ends, it must be welded into the pipeline. To install: prepare the pipe ends to the correct length and clean them to remove any debris or contaminants, insert the pipe into the valve’s socket weld ends, perform a qualified socket weld on each end, ensuring the weld size and penetration meet relevant piping codes (e.g., ASME B31.1 / ASME B31.3) and allow proper cooling and inspect the welds before pressure testing. Because socket welds are permanent joints, care should be taken during alignment and welding to avoid distortion or stress on the valve body.
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What are typical uses of a Class 800 Socket Weld Forged Steel Gate Valve?
Class 800 forged steel gate valves are commonly used in industrial and high-pressure applications due to their robust construction and elevated pressure capability (up to roughly 136 bar). They are suited for steam and thermal systems, oil & gas distribution, petrochemical processing, high-pressure water or chemical lines and any system where strong, compact threaded isolation is required. Their forged body and solid wedge design deliver excellent strength, tight seal performance and pressure endurance in demanding environments
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How long will my product take to get to me?
This depends upon where you are based and the freight method chosen. If the express freight option is selected it is usually next day delivery to metropolitan areas in Australia for under 5kg. If free freight has been selected it will go by road freight which can be anywhere from 1 to 10 days depending upon your location. It usually averages 3 days.
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What warranty do I get?
All of our products come standard with a 12 month warranty. The good news is we have very strict quality controls and all valves leave our warehouse tested (full material and testing certificates to API598 are available) and inspected so there are rarely any issues. Also once your valve is in and operating it will most likely continue to do so for a very long time.
