Class 150 Gate Valve

Kinvalve Class 150 gate valves are designed in accordance with various low-pressure industries that only up to 2.0MPa pressure rating. These flanged end Class 150 gate valves meet the standard of API600, API602/603 or ASME 16.34 specification.

  • Class-150-Gate-Valve-A216
  • Class-150-Gate-Valve-A351
  • Class-150-Gate-Valve-Forged
  • Dimension-Inspect-for-Class-150-Gate-Valve
  • Class-150-Gate-Valve-A216
  • Class-150-Gate-Valve-A351
  • Class-150-Gate-Valve-Forged
  • Dimension-Inspect-for-Class-150-Gate-Valve


  • Construction – Rising Stem/OS&Y, Bolted bonnet
  • Body Material – A351 CF8M/CF8/CF3, A216 WCB, A352 LCB/LCC
  • Disc Material – API600 Standard Trim and Customized choices with special coating for extra hardness
  • Seat – Integrated, or Renewable Design, metal-to-metal
  • Size Range – DN15-DN600
  • End Connection – Flange, BW, SW
  • Pressure Rating – Class 150-2500
  • Standard – Design to API600, API602/603, ASME B16.34, Flange Dimension to ASME B16.5, Butt Welding to ASME B16.25, Face to face meets ASME B16.10, Inspection and testing according to API598
  • Temperature Rage – -320°F – 650°F

Reliable Class 150 Gate Valve Manufacturer

As a most popular product line of gate valves, Class 150 gate valves are used to allow or cut off the fluid where the minimum pressure drop is important. The disc can be lifted or pushed down by the stem to achieve this kind of performance.

At Kinvalve, you can make a choice from solid wedge, flexible wedge or split wedge designed Class 150 gate valves. These three types of Class 150 gate valves have each advantage suitable for your applications.

A Class 150 gate valve with solid wedge is the most common gate valve you can find in the market. This type of Class 150 gate valve is practical for turbulent flow because of its a piece strengthen solid wedge.

Solid wedge gate valves can be used in any positions and fit for almost all fluids, even in the applications where the high temperature and high pressure retain. However, you need pay more attention to them when there is thermal expansion or bending loads in your application. The thermal expansion will make the solid wedge get locked between the seats, and the bending loads will lead to deformation as well.

In a flex wedge Class 150 gate valve, the disc is also one-piece design, but there are cuts on it. The shallow narrow cuts provide little flexibility but remain strength. You can benefit much more flexibility from the deeper and wider cuts but you also need to accept the weakness of less strength. The flexible wedge can overcome the limitation of thermal expansion and bending loads.

At Kinvalve, the split disc design in a Class 150 gate valve is also an option for you. Compared to the solid and flex wedge with one-piece disc, the split wedge is two-piece disc. Split wedge is a self-alignment wedge onto the seats design and it is usually installed in the vertical position.

We can produce this 150lb gate valve based on your customized list. For example, you can choose the material of the valve body, the material of the trim, and you can also choose the connection types, such as flanges, welding, etc.

You can choose the valve bonnet connection method and different stem structure designs based on the application conditions. For Class 150 gate valves, the most common design is the bolted bonnet design, with the stem structure generally consisting of a rising stem and a non-rising stem.

Here at Kinvalve, we ensure that our gate valve class 150 is manufactured to meet and exceed your expectations. We also indicate this pressure rating clearly on the gate valve body to assure you of the correct gate valve for your application.

Do you have any questions regarding the Kinvalve Class 150 gate valve? Call our engineers now!

Types of Class 150 Gate Valves

Kinvalve provides three types of 150# GATE VALVES for your options. Our 150lb gate valves are designed in accordance with API 600, ASME B16.34 standard, as well as API602 standard.

  • API602-150-flange-end-gate-valve-a105
    API602 Class 150 Gate Valve

    Class 150 gate valves in accordance with API602 standard are made of forged steels such as ASTM A105, A182 F11, F5, F304, F304L, F316, F316L, etc. You can benefit from its corrosive and erosive resistance in your severe applications.

  • API600-Class-150-Gate-Valve-40-Inch
    API600 Class 150 Gate Valve

    API 600 gate valve is a heavy-duty and large stem dimension gate valve with bolted bonnet for the petroleum and natural gas industries. API standard series trims are for you to choose from to meet different media usage requirements.

  • ASME-Class-150-Gate-Valve
    ASME Class 150 Gate Valve

    ASME gate valves are in accordance with ASME B16.34 design standard. This type of Class 150 gate valve is your cost-efficient choice. They are made by casting bodies. ASME Class 150 gate valve is the most common product line in the market.

Main Componets

Body: Pressure-retaining part, housing all the trims, providing Connection to the pipelines, Made of ASTM A105 for high-temperature, ASTM A350 for Low temp, and ASTM A182 for corrosive medium.

Bonnet: Mostly Bolted to the body, customized inside seals fit every condition you meet.

Stem: Controlling the disc to open/close. Generally hard alloys like 13Cr are strong enough to withstand the loads, wear and corrosion. The choice of valve stem material also depends on the material of your valve body and the properties of the medium.

Wedge: The moving part upwards or downwards to allow or block the fluid thru. Solid, Flexible and Split types of wedges for your choice.

Seat: The two-piece seats combinate the wedge to ensure the sealing of the gate valve. Integrated design and insert seat ring for your options.

Backseat: A seat arrangement inside the bonnet, you can think of backseat as the first line of defense against external leaking from the stem.



  • Minimal Leakage, Long Service Life
  • Seat and Wedge Face Stellited Providing Harden Surface
  • Wedge and Seat Ring are Ground and Lapped to a Mirror Finish and Tightly Guided to Ensure Tight Sealing Performance
  • Secondary Metal-to-metal Seal Provided by Backseat Bushing
  • Yoke Sleeve Lubrication with Grease Fitting to reduce Operating Torque & Stem Wear
  • Bolted Bonnet Design Makes Easy Disassemble and Maintenance
  • Designed with Flexible Gates to Assure Proper Placement


Class 150 Gate Valves have a very wide range of application starting from very basic water to refineries process industries. We are mainly focused in the process industries utilizing high temperature thermic fluid in indirect heating systems, steam, different types of food industries.


Our Experience Save Your Safety

Large Stock

Class 150 Gate Valves are one of the most important product lines in Kinvalve, we have a lot of ready stock finished products and castings to provide quick delivery time.

Penetration Testing

ISO certificated design, production, and quality control processes help us provide customers with high-quality products and services.

Design Team

Advanced production equipment and professional technical team enable Kinvalve to provide matching 150lb gate valves for your large-sized pipelines.

Advanced Processing

Kinvalve has multiple detection methods to accurately inspect the materials, the internal defects of the valve castings, providing the valve products that meet your high-quality requirements especially in the severe applications.

Related Products

  • API600-Gate-Valve
    API 600 Gate Valve
  • API602-gate-valve
    API 602 Gate Valve
  • Bolted-Bonnet-Gate-Valve
    Bolted Bonnet Gate Valve
  • Class-300-Gate-Valve
    Class 300 Gate Valve
  • electric-gate-valve
    Electric Gate Valve

What are Class 150 Gate Valves?

They are special types of valves designed to withstand liquid pressure of up to 150 PSI (Pounds Per Square Inch). They majorly differ from other types of gate valves in terms of their pressure rating.

Class 150 Gate Valve
Class 150 Gate Valve

How to Choose Class 150 Gate Valve

When choosing Class 150 gate valves, it is important to consider the following:

  • Flanged ends: They are designed with flanged ends that make them easy to install. As such, this is attributed to their low costs of maintenance and installation.
  • Design  (bolted bonnet design): This entails bolting of outermost casing of the valve that serves as protection to other inner components. Consequently, this helps in maintenance since it allows for ease of deconstruction and reconstruction.
  • Size scope/range: They come in a variety of sizes that caters to all consumer’s needs. For instance, some are small whilst others are large depending on their functionality.
  • Rising stem: They normally have a non-rotating rising stem that holds the gate firm in its position and maintains its alignment.
  • Handwheel operated: They are flexible in that they can be operated using hands to control the flow rates.
  • Excellent sealing mechanism: They have excellent sealing abilities in the sense that the seals are made tight thus regulating possible liquid leakages.
Features of Class 150 Gate Valve
Features of Class 150 Gate Valve

Best Material for Class 150 Gate Valve Construction.

  • Carbon steel:  Carbon steel can be a suitable material in the construction of class 150 gate valves. It exists as one of the alloys of steel and has various advantages such as high tensile strength, corrosion resistance, and ability to withstand high pressure.
  •   Brass: Brass is also one of the suitable materials that can be used in constructing class 150 gate valves. It exists as an alloy made from copper and zinc therefore constituting of properties of both copper and zinc. Class 150 gate valves made from brass are majorly applicable in general plumbing applications such as commercial and residential plumbing.
  • Stainless steel: They are also preferred in making class 150 gate valves since they are resistant to chemicals.
  • Bronze: Bronze is also one of the significant materials used in making class 150 gate valves. They have several advantages over materials such as excellent mechanical strength, less costly as opposed to brass-type valves, and corrosion resistance.


In summary, class 150 gate valves are significantly important in general plumbing applications in various ways. Furthermore, they are advantageous to use as opposed to other classes of gate valves in the sense that they offer excellent sealing effects, are less costly, and have mechanical advantages.

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