 |
|
|
|
Product Details:
Payment & Shipping Terms:
|
| Type: | Ball Valve, Gate Valves, Float Valves, Swing, Lift, Wafer | Model Number: | JYFD-100,Gate Valve |
|---|---|---|---|
| Application: | General | Temperature Of Media: | High / Medium / Low / Normal Temperature |
| Power: | Manual | Media: | Water, Gas, Oil, Etc |
| Port Size: | 1/4" ~ 8" | Structure: | Check |
| Product Name: | Floating Ball Valve | Port: | Full-port |
| Connection: | Flange, Welded, Wafer | Standard: | DIN, ANSI, JIS, EN |
| Body,Bonnet: | Carbon Steel, Stainless Steel | Seal: | PTFE |
| OEM: | Welcome | Design: | ASME B16.34 |
| Standard Or Nonstandard: | Standard |
PN16 DN100 Non Rising Stem Resilient Flanged Gate Valve Wedge Gate Valve 200psi Soft SealSteel Gate Valve
A gate valve can be defined as a type of valve that used a gate or wedge type disk and the disk moves perpendicular to flow to start or stop the fluid flow in piping.
A gate valve is the most common type of valve used in any process plant. It is a linear motion valve used to start or stop fluid flow. In service, these valves are either in a fully open or fully closed position.
When the gate valve is fully open, the disk of a gate valve is completely removed from the flow. Therefore virtually no resistance to flow. Due to this very little pressure drops when fluid passes through a gate valve.
To achieve proper sealing, when the valve is fully closed, 360° surface contact is required between disk and seats.
Gate valves should not be used for regulation or throttling of flow because accurate control is not possible. The high velocity of the flow in the partially open valve may cause erosion of the disc and seating surfaces and also creates vibration and noise.
| Part No. | Part | Standard Specification | Options |
| 1 | Valve Body | ASTM A536, 65-45-12 | |
| 2 | Resilient Wedge Disc | ASTM A536, 65-45-12+SPDM | AISI 304, AISI 316, AISI 420,AISI 431 |
| 3 | Stem | Stainless Steel | AISI 304, AISI 316, AISI 416 |
| 4 | Bonnet Gasket | EPDM | NBR |
| 5 | Bonnet | ASTM A536, 65-45-12 | |
| 6 | Washer | Brass Hpb59-1 | |
| 7 | Yoke | ASTM A536, 65-45-12 | |
| 8 | Stem Bushing | Brass Hpb59-1 | |
| 9 | Gland | ASTM A536, 65-45-12 | |
| 10 | Stem Nut | Brass Hpb59-1 | Bronze ZQSn5-5-5 |
| 11 | Handwheel | ASTM A536, 65-45-12 | Pressed Steel |
| 12 | Washer | Brass Hpb59-1 | |
| 13 | Gland Nut | Carbon Steel Zinc Plated | AISI 304, AISI 316 |
| 14 | Stud | Carbon Steel Zinc Plated | AISI 304, AISI 316 |
| 15 | Flat Washer | Carbon Steel Zinc Plated | AISI 304, AISI 316 |
| 16 | Nut | Carbon Steel Zinc Plated | AISI 304, AISI 316 |
| 17 | O-Ring | NBR | EPDM |
Here you can see the main parts of the gate valve. The disk of a gate valve is also known as a wedge. To learn about each of these parts read complete guide of valve parts.
There are three ways to classify the gate valve.
Solid wedge is the most common & widely used disk type because of its simplicity and strength. A valve with a solid wedge may be installed in any position, and it is suitable for almost all fluids. It can be used in turbulent flow also.
However, it does not compensate for changes in seat alignment due to pipe loads or thermal expansion. So, this type of disk design is most susceptible to leakage. Solid wedge is subjected to thermal locking if used in high-temperature service.
Thermal locking is a phenomenon in which wedge is stuck between the seats due to the expansion of the metal. Solid-wedge gate valves are generally used in moderate to lower pressure-temperature applications.
The flexible wedge is a one-piece solid disk with a cut around the perimeter. These cuts vary in size, shape, and depth. A shallow, narrow cut on wedge perimeter gives less flexibility but retains strength. A cast-in recess or deeper and wider cut on wedge perimeter gives more flexibility but compromises the strength.
This design improves seat alignment and offers better leak tightness. It also improved performance in situations where thermal binding possible. Flexible wedges Gate valves are used in steam systems.
Thermal expansion of the steam line sometime causes distortion of valve bodies which may lead to thermal blinding. The flexible gate allows the gate to flex as the valve seat compresses due to thermal expansion of the steam pipeline and prevents thermal blinding.
The disadvantage of flexible gates is that line fluid tends to collect in the disk. These may result in corrosion and ultimately weaken the disk.
Product Show
Workshop&Certification
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.But we have our own foreign trade team!
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: General is 100%TT deposit, or 30% advance payment, balance paid before shipment.
Q: Could you specially design and produce for clients?
A: Yes,Of course! We have experienced engineers, we can produce according to your requirements or drawings!
Contact us
If you have any needs, please feel free to contact us. We can produce according to your samples or drawings, we can also customize the design drawings for you according to your requirements, and then send them to you for confirmation!
Whatsapp / Wechat: 86-183 6668 9153
Skype: jieyi2021
E-mail: jacky@tzjieyi.com
info@shandongjieyi.com
Website: http://www.tzjieyi.com
http://www.shandongjieyi.com
Contact Person: Mr. Jacky
Tel: 86-183 6668 9153
