Knife-shaped Slab Gate Valve without Diversion Hole

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Technical Specification
Product name	Knife-shaped slab gate valve without diversion hole
Design reference	API	ASME
Design standard	API 6D	ASME B16.34
Structural length	API 6D	ASME B16.10
Flanged ends	ASME B16.5、ASME B16.47	ASME B16.5、ASME B16.47
Butt-welding ends	ASME B 16.25	ASME B 16.25
Test & inspection	API 6D	API598
Packing:	To be packed in suitable wooden cases as per client's option or customized
Shipping & Delivery:	20-25 days lead time; deliver by ship from Ningbo port or Shanghai port
Closure type	Knife-shaped slab gate valve
Notes: Serial valve connecting flange and butt-welding terminal size can be designed at customers'request. The material of the main parts and sealing surface of the valve can be designed and selected according to the actual working conditions or the special requirements of users.

 

 

1. Simple structure: The structure of the knife gate valve is relatively simple and consists of fewer parts, making it relatively easy to manufacture, install and maintain. This also helps reduce breakdown and repair costs.

2. Fast cutting ability: The blade structure of the knife gate valve makes it possible to quickly cut off the medium. When a pipe system needs to be shut down quickly or for emergency repairs, knife gate valves respond quickly and cut off the flow of media.

3. Strong wear resistance: the blade and seat of the knife gate valve are usually made of wear-resistant materials, with good wear resistance. This makes knife gate valves more reliable when handling media containing particulate matter, reducing wear and leakage problems.

4. High temperature and high pressure applications: compared with some other valve types, knife gate valves have better adaptability in high temperature and high pressure media. Due to the large contact area between the blade and the seat, the knife gate valve can withstand higher operating temperatures and pressures.

5. High reliability: the knife gate valve in the working state is usually only fully open and fully closed two cases, do not need frequent adjustment and operation. This makes the knife gate valve relatively stable and reliable, not prone to failure or leakage.

 

 

• Our service tenet is customer first, service first. We will provide more accurate and efficient manufacturing and service according to customer requirements.
• We have a professional QC team to ensure that the products in Knife-shaped slab gate valve without diversion hole meet your needs and do better.
• Check raw materials before production at Knife-shaped slab gate valve without diversion hole.
• Spot checks are carried out during the processing of Knife-shaped slab gate valve without diversion hole.
• 100% inspection of Knife-shaped slab gate valve without diversion hole before shipment.
• Provide a one-year service for the products provided by Knife-shaped slab gate valve without diversion hole to create value for customers.

 

 

• We have complete production technology and management.
• As a manufacturer our price is also good.

 

 

To be packed in suitable wooden cases as per client's

 

 

Q: Precautions or not?

A: The advantages and applicability of knife gate valves vary according to specific application scenarios and requirements. When selecting the knife gate valve, the working conditions, medium characteristics and other relevant factors should be considered comprehensively to ensure that the most appropriate valve type is selected.

 

Q: Does valve assembly require craftsmanship?

A: Yes, because the assembly work has a great impact on the quality of the product, even if the design is correct, the parts are qualified, if the assembly is improper, the valve can not meet the specified requirements, and even the valve seal leakage. Therefore, special attention should be paid to the use of reasonable assembly process methods to ensure the final quality of the valve. Valve commonly used assembly methods are complete interchange method, repair method and matching method.

 

Q: Which countries and groups are ASME standards?

A. The American Society of Engineers

 

Q: What is the main basis for the selection of valve body materials?

A: Practicability, feasibility, economy, reliability, manufacturability, qualitative change possibility

 

Q: What are the commonly used materials for flange bolts/nuts in American and national high pressure valves?

A: GB/T3098.1 8.8 GB/T3098.2 8 ASTM A193 B7 ASTM A194 8

 

Q: How many ways are there to connect valves and pipes?

A: Flanges, threads, welded connections, clamps, bushing

 

Q: How many types of wedge gate valves are there?

A: Single ram, double ram, parallel type

 

Q: What is the phenomenon of water hammer? How to prevent water hammer damage to the valve?

A: Water hammer is a sudden power failure or when the valve is closed too fast, due to the inertia of the pressure water flow, resulting in a water shock wave, just like a hammer beating, so it is called water hammer.

 

Q: What are the basic requirements for sealing surface materials?

A: The basic requirements of sealing surface materials are 1, heat resistance 2, water resistance 3, abrasion resistance 4, erosion resistance and corrosion 5, hardness 6, expansion coefficient 7, processing technology 8, weldability 9 other requirements

 

Q: What is the flaw detection method for surface defects? What's the code name?

A: Magnetic particle inspection and penetration inspection codes are MT and PT

 

Q: Should the pressure test be sealed first or the strength of the shell first?

A: The pressure test should be the strength of the shell

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