A gate valve is a linear motion valve used to start or stop fluid flow. It operates by raising or lowering a gate (disc) inside the valve body. When fully open, gate valves provide minimal flow resistance, making them ideal for applications requiring an unobstructed flow path.
Gate Valves ideal choose when :
✔ Full Flow is Required: Suitable for pipelines where unrestricted flow is needed.
✔ Tight Sealing is Necessary: Provides reliable shutoff in water, oil, and gas applications.
✔ Minimal Pressure Drop is Important: Ideal for systems where maintaining pressure is critical.
✔ Slow Opening/Closing is Acceptable: Prevents water hammer effects in large pipelines.
✔ High-Temperature & High-Pressure Resistance is Needed: Performs well in steam and high-pressure environments.
Type of Gate Valves
Rising Stem Gate Valve, Non-Rising Stem Gate Valve, Wedge Gate Valve, Parallel Slide Gate Valve, Knife Gate Valve.
GATE VALVE
Sizes: 2” to 36”
Pressure Rating: ASME CLASS 150# : 1500#.
Specification & Standard:
Design standard: API 600 / API 603 / ASME B16.34 / BS 1414 / ISO 10434
Testing & Inspection: API 598
Fact to Face: ASME B16.10
Flange End: ASME B16.5 / ASME B16.47
NACE MR 1.75
Function
Start/Stop Flow: Primarily used to start or stop the flow of fluid in a pipeline.
Isolation: Provides a tight seal to isolate sections of a pipeline for maintenance or safety purposes.
Minimal Pressure Drop: When fully open, gate valves offer minimal resistance to fluid flow, reducing pressure drop across the valve.
Each type of gate valve is designed to meet specific requirements based on the application and operating conditions.
Application
Carbon steel is often used for gate valves with bolted bonnets due to its strength, durability, and resistance to wear. It’s suitable for a variety of applications, including:
Water and wastewater systems: Handling the flow of water and wastewater.
Oil and gas industries: Managing the flow of oil, gas, and other fluids.
Power plants: Regulating the flow of steam and other fluids.
Chemical processing: Handling various chemicals and process fluids.
Carbon steel’s ability to withstand high pressures and temperatures makes it a reliable choice for these application
GATE VALVE
Sizes: 2” to 24”
Pressure Rating: ASME CLASS 150# : 1500#.
Specification & Standard:
Design standard: API 600 / API 603 / ASME B16.34 / BS 1414 / ISO 10434
Testing & Inspection: API 598
Fact to Face: ASME B16.10
Flange End: ASME B16.5 / ASME B16.47
Stainless Steel Valves :
Stainless steel gate valves are an excellent choice for specific applications, particularly when resistance to corrosion and extreme temperatures is crucial. Here are some scenarios where stainless steel gate valves are typically used:
Chemical processing: Handling corrosive chemicals and aggressive fluids.
Food and beverage industry: Maintaining sanitary conditions and preventing contamination.
Pharmaceutical industry: Ensuring cleanliness and resisting chemical degradation.
Marine environments: Resisting corrosion from saltwater and harsh marine conditions.
High-temperature applications: Withstanding extreme temperatures without losing integrity.
Stainless steel offers superior resistance to rust, corrosion, and staining, making it ideal for applications where durability and longevity are essential.
Seawater treatment and pulp and paper industries.
Download Datasheet
GOVAL GATE VALVES DI
GATE VALVE
Sizes: DN50 to DN400
Pressure Rating: PN 10/16
Specification & Standard:
BS 5163-1:2004
BS EN 1074 Part 1 & 2
Face to Face: EN558 Table 2 Basic Series 3
Flanged Drilling: EN1092 / PN 10/16
Function:
A gate valve is designed for on/off control rather than throttling. It operates by raising or lowering a gate (disc) inside the valve body to allow or block fluid flow.
Screw-type ends for easy installation in pipelines.
Brass material provides good corrosion resistance and durability.
Applications:
– Water Supply Systems – Used in potable water and irrigation pipelines.
– HVAC Systems – Controls water flow in heating and cooling applications.
– Oil & Gas Pipelines – Suitable for non-aggressive fluids like oil or low-pressure gas.
– Compressed Air Systems – Can be used in pneumatic applications.
– Industrial and Chemical Processing – Handles mild chemicals and fluids.
– Fire Protection Systems – Common in sprinkler systems for shut-off control.
Download Datasheet
GOVAL KNIFE GATE VALVE
KNIFE GATE VALVE
DN 50 to DN 250 :10 bar
DN 300 to DN 400 : 6 bar
DN 450: 5 bar
DN 500 to DN 600 : 4 bar
DN 700 to DN 1200 : 2 bar
Pressure Rating: : EN-1092 PN10 / PN 16
ASME B16.5 (class 150)
Other Flange drillings available on request
Material:
Body :GJL250/ GJS400 / EN-GJS-500-7 / CF8M
Gate :AISI 304 / AISI 316
Seat :Metal-to-Metal,EPDM , NBR
Packing :PTFE
Function
A knife gate valve features a sharp-edged gate that can cut through thick fluids, slurries, or solids. When the valve is actuated, the gate moves up and down, allowing or stopping the flow of material. The thin gate and sharp edge make it particularly effective for:
Severing: Cutting through viscous or solid-laden fluids.
Blocking: Providing a reliable seal to prevent flow.
Regulating: Controlling the flow rate, though this is a secondary function.
Application
Knife gate valves are ideal for applications involving:
Wastewater treatment: Managing sludge and wastewater.
Pulp and paper industry: Handling pulp mixtures, paper stock, and recycled materials.
Mining: Controlling the flow of abrasive slurries, ores, and other mining by-products.
Chemical processing: Dealing with corrosive and viscous chemicals.
Food and beverage industry: Managing solid-laden fluids, like grains or mixtures in processing plants.
The ability of knife gate valves to handle challenging media makes them indispensable in industries dealing with thick, abrasive, or slurry-like materials.
BRASS VALVE
DN 15 – DN 50
Pressure Rating: PN 16
Range : DN15 to DN50 PN16
Body: Brass CW617N
Gate : Brass CW617N
Seal: NBR
Operating Temperature: -10°C to 80°C
Application
Domestic water services: For controlling water flow in household plumbing systems.
Heating and air-conditioning systems: Managing the flow of water or other fluids in heating and cooling systems.
Compressed air systems: Regulating the flow of compressed air in industrial settings.
Fire protection systems: Ensuring reliable operation in fire sprinkler systems.
The body material, Brass CW617N, is known for its good mechanical properties and resistance to corrosion, making it suitable for these applications.