Stainless Steel Water Stop Globe Valve for Water Gas Oil Application

• Customization: Available
• Media: Acid
• Temperature: Ordinary Temperature
• Model NO.: ASTM, ASME/ANSI, GOST, EN, SABS/BS, JIS, DIN
• Actuator: Manual
• Material: Stainless Steel
• Structure: Through Way Globe Valve
• Sealing Form: Gland Packings Globe Valve
• Stem Thread Position: Inside Screw Stem Globe Valve
• Application: Lining Fluorine Valve, Needle Type Globe Valve, Cryogenic Globe Valve, Plunger Type Globe Valve, Heat Preservation Globe Valve, Forged Steel Globe Valve, Oxygen Globe Valve, Bellows Globe Valve
• Standard: DIN, GB, ANSI, BSW, JIS
• Transport Package: Wooden Box
• Specification: ASTM/EN/JIS
• Trademark: YULONG
• Origin: China

Product Description

Globe Valve 

The stop valve, also known as the cut-off valve, is a type of forced-sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to ensure that the sealing surface does not leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing, as well as the thrust generated by the pressure of the medium.

The force required to close the valve is greater than that required to open it, so the diameter of the valve stem must be large; otherwise, the valve stem may bend. According to the connection method, there are three types: flange connection, thread connection, and welding connection. Since the self-sealing valve appeared, the flow direction of the medium for the stop valve has changed to enter the valve chamber from above the valve disc. At this time, under the action of the medium pressure, the force required to close the valve is small, while the force required to open the valve is large.

The diameter of the valve stem can be reduced accordingly. At the same time, in this form of valve, it is also more reliable under the action of the medium. In China's "Three Modernizations" regulations for valves, the flow direction of the stop valve is uniformly specified as from top to bottom. When the stop valve is opened, when the opening height of the valve disc is 25% to 30% of the nominal diameter, the flow has reached its maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the stop valve should be determined by the travel of the valve disc.

Company Profile

Cangzhou Yulong Steel Co., Ltd.

      Cangzhou Yulong Steel Co., Ltd. is a big seamless pipe manufacturer, whose production capacity is 200,000 tons, sales revenue is 1 billion RMB. It is one of the biggest seamless pipe manufacturer in north China, and the factory is located in Lijiapu industrial zone, Cang county, with traffic advantage. Our construction area is 68,000 square meters, and first project is 12,000 square. There is 178 employees in the company, including 3 senior engineers, 3 professional technicians, and10 product development personnel.
       Now we have hot rolled punching machine 60 one set, 180 one set, cold rolled machine one set, hot expand machine one set, manufacturing 1/2"-30" seamless pipe. There are also configure advanced automatic control system and on-line quality inspection system, including on-line turbo detection, hydraulic test machine, ultrasonic inspection etc. We also have an independent loboratory to ensure the quality for each pipe.
      The company insists on quality of survival, science and technology for development, management and profit for concept, API, Q1, ISO 9001 standard is quality control system, continuously reduce energy consumption, improve product quality. We have got API5L, API5CT, ISO9001, ISO14001, OHSAS18001 certificate, guarantee company product quality, system integrity and environment safe. 

Product Description

Advantages: 

(1) The structure of the stop valve is simpler than that of the gate valve, and it is easier to manufacture and maintain.
(2) The sealing surface is less prone to wear and scratching, with good sealing performance. During opening and closing, there is no relative sliding between the valve disc and the sealing surface of the valve body. Therefore, the wear and scratching are not severe, and the sealing performance is good, with a long service life.
(3) During opening and closing, the stroke of the valve disc is small, so the height of the stop valve is smaller than that of the gate valve, but the structural length is longer than that of the gate valve.
(4) The opening and closing torque is large, and it is more laborious and takes a longer time.
(5) The fluid resistance is large because the medium passage inside the valve body is more tortuous, resulting in high fluid resistance and high power consumption.
(6) When the nominal pressure PN ≤ 16 MPa, the medium generally flows in the same direction as the valve disc (downward from below the valve disc); when the nominal pressure PN ≥ 20 MPa, the medium generally flows in the opposite direction (upward from above the valve disc) to increase the sealing performance. When in use, the medium of the stop valve can only flow in one direction and cannot change the flow direction.
(7) The valve disc often suffers from erosion when fully open.
The axis of the valve stem of the stop valve is perpendicular to the sealing surface of the valve seat. The stroke of the valve stem opening or closing is relatively short, and it has a very reliable cutting action, making this valve suitable for use as a cut-off or regulation and throttling of the medium.

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 12 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

FAQ

1. Are you a manufacturer or trading company?
We are a professional valves and fittings manufacturer with 20 years' experience.

2. What is payment method?
For samples: T/T, western union. For orders: T/T or L/C.

3. Do you offer free samples?
We can provide free samples and you should pay the freight. After you place an order, we will give back the freight. 

4. Do you offer OEM service and can you product as our drawings?
Yes. We offer OEM service. We accept custom design and we have a professional design team who can design products based on your requirements.
And we can develop new products according to your samples or drawings. 

5. Do you accept our design on boxes?
Yes. We accept custom design on boxes. 

6. What's your delivery time?
Standard models ship in 15–30 days; customized units require 30–45 days. If urgent, we can also meet your requirement.

7. Is your price higher than other companies?
Since we have been a professional manufacturer more than 20 years, we can control our quality and costs well. 
So our prices are very competitive. And we dedicate to establishing long-term and friendly relationships with all the customers.

8. What is your main market?
Southeast Asia,Middle East ,North America,South America,Europe etc.

9. Do you provide after-sales service overseas?
Yes, we have partnered service centers in key regions.
 
10. What documents do you provide for export?
Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
 
11.How do I place an order?
Contact us via email/phone for a quote, then confirm with a PO.