Basic Info.
Media
Waste Water, Cinder, Mine, Coal etc.
Temperature
High Temperature
Actuator
Handle Wheel, Pneumatic, Gear, Electric, etc.
Seal Surface
Wedge Gate Valve
Thread Position of Valve Rod
Outside Gate Valve
Usage
Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control
Standard
ISO; DIN; ASME; JIS; as; BS
Application
Industrial Usage, Water Industrial Usage, Household Usage
Transport Package
Standard Export Packing
Specification
DN40-DN3000
Product Description
Product Description
The opening and closing part of the knife gate valve is the knife /gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The manual knife gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate has two sealing surfaces, The two sealing surfaces of the most commonly used mode gate valve form a wedge, and the wedge angle varies with valve parameters, usually 50. The gate of the wedge knife gate valve can be made into a whole, called a rigid gate; it can also be made A gate that can produce a small amount of deformation to improve its process characteristics and make up for the deviation of the angle of the sealing surface during the processing.This kind of gate is called an elastic gate.
When the knife gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, rely on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. The gate valve adopts forced sealing, that is, when the valve is closed, the gate must be forced to press against the valve seat by external force to ensure the sealing performance of the sealing surface
| PART NAME | Material |
|---|
| BODY | GG25/GGG40, WCB, CF3,CFCM,CF8,CF8M, |
|---|
| SEAT | NBR/EPDM/VITON |
|---|
| DISC | SS201/304/316, 2Cr13 |
|---|
| PACKING | PTFE /Kelvar |
|---|
| GLAND | GG25/GGG40,WCB, SS |
|---|
| STEM NUT | QAL9-4 |
|---|
| STEM | 2Cr13 |
|---|
| YOKE | Q235A |
|---|
| SUPPORT | Carbon Steel |
|---|
| HAND WHEEL | HT250 |
|---|
| BOLTS/NUTS | A193 B7 /A194 2H |
|---|
| BEARING | Bearing Steel |
|---|
| CAP | Steel |
|---|
Product Parameters
| TYPE: | Wafer, lug, double flanged |
|---|
| SIZE & CONNECTIONS: | DN50 to D1800 |
|---|
| MEDIUM: | Oil, Mud, material, viscous, granular fluid |
|---|
| MATERIALS: | Cast Iron / Ductile Iron/ Carbon Steel / Stainless steel / Alu Bronze |
|---|
| PRESSURE RATING: | PN10, PN16, 150LB, |
|---|
| TEMPERATURE: | -30°C to 200°C |
|---|
| SEAT/LINING: | Resilient seated
NBR/EPDM/VITON, metal seated. |
|---|
| CERTIFICATES & APPROVALS: | DNV-GL, Lloyds, DNV, ABS, BV Type Approval
3.1 & 3.2 Cert (on request) |
|---|
Features
- The lift-ablegate sealing surface can scrape off the adhesive on the gate and automatically remove debris.
- Stainless steel gate can prevent seal leakage caused by corrosion.
- The overall stainless steel material can prevent corrosion damage.
- The short structure length can save raw materials and installation space, and also effectively support the strength of the pipeline.
- TheScientific upper seal stuffing box design makes the upper seal safe, effective and durable.
- The Triangular bracket saves raw materials and ensures the required mechanical properties.
- The guide block on the valve body makes the gate move correctly. The squeeze block ensures effective sealing of the gate.
- The design of the body stiffener improves the strength of the valve body.
- Stainless steel valve stem is durable, and the double-headed screw can be opened and closed more quickly.
- The driving methodcan be selected arbitrarily.
- The V-type gate can be used as a regulating valve.
Detailed Photos
Production Process
Packaging & Shipping
Company Profile
Tianjin Tanghaidongyang Valve Co., Ltd. is a professional marine valve manufacturer, including butterfly valve, check valve, gate /Knife gate valve. We have certificates: CE, ISO, BV, DNV foundry and products approval. Now we have our own independent R & D, manufacturing, assembly and warehousing workshops; we have professional pre-sale and after-sale technical support and perfect services.
Certificates & approvals: CE FOUNDRY, CE QUALITY SYSTEM, ISO9001-2015, BV FOUNDRY AND PRODUCTS, DNV BUTTERFLY VALVE, DNV CHECK VALVE, DNV FOUNDRY.
After 15 years of continuous development and innovation, the company now has a group of high-tech engineers, technicians and skilled production workers, advanced production technology, sophisticated manufacturing equipment, complete testing methods, in strict accordance with international standards and quality management system, formed A comprehensive quality control network.
Our products use advanced manufacturing technology, and strictly conform to API, DIN, BS, EN, ISO, GB and other international standards. The main products are butterfly valves, gate valves, check valves, globe valves, valve parts (Valve body, Valve disc, Valve shaft, Valve seat…), etc. Our products are widely used in various fields such as marine industry, shipbuilding, petrochemical, metallurgy, water treatment, fire fighting, water supply and drainage, etc. The company has won unanimous recognition and praise from customers with high quality and good reputation.
We have established long-term and stable business relationships with many multinational companies. Our products are exported to Europe, the United States, Australia, and the Middle East, Southeast Asia and other countries and regions. The quality of our products has been widely recognized by customers, and has been trusted and praised by customers. Gradually we have established a close technical partnership with customers from various countries.
We are committed to "Build a top valve enterprise; Be a reliable partner!"
Friends from all over the world are welcome to visit us for evaluation, guidance, and orders!
Certifications
Address:
Henghua Building, Dagu Soutn Road, Hexi District, Tianjin, China
Business Type:
Manufacturer/Factory
Business Range:
Industrial Equipment & Components
Management System Certification:
ISO 9001
Company Introduction:
Tianjin Tanghai Dongyang Valve Co., Ltd. is one of the most prestigious and largest manufacturers in China. With its own independent research and development facilities, the company′s butterfly valve series, such as lug butterfly valves...., exceed the quality expectations of target customers and obtain the high reputation from the customers. The company manages all manufacturing and assembly work in the workshop, which is also equipped with storage facilities. The above advantages enable us to provide professional quality and complete after-sales and technical support.
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