Products Name:Flat Gate Valve
Production of flat gate valve, is a kind of sliding piece sliding shutter for the parallel. The closing member can be a single gate or a double gate with a distraction mechanism therebetween. The pressing force of the gate to the valve seat is controlled by the medium pressure acting on the floating gate or the floating valve seat. If it is a double gate plate gate valve, then the two gates between the distraction mechanism can supplement this pressure.
Product Usage of Flat Gate Valve
Production of flat gate valve, is a kind of sliding piece sliding shutter for the parallel. The closing member can be a single gate or a double gate with a distraction mechanism therebetween. The pressing force of the gate to the valve seat is controlled by the medium pressure acting on the floating gate or the floating valve seat. If it is a double gate plate gate valve, then the two gates between the distraction mechanism can supplement this pressure.
Product Categories of Flat Gate Valve
Flat gate valve by driving can be divided into manual flat gate valve, pneumatic flat gate valve and electric flat gate valve. According to the purpose and use occasions can be divided into a diversion orifice plate gate valve, non-diversion orifice plate gate valve, oil field plate gate valve, pipeline flat gate valve and gas flat gate valve.
Structural features of Flat Gate Valve
This series of products adopt the new floating seal structure, which is suitable for the opening, closing and adjusting devices of control media such as oil and natural gas with pressure less than 15.0MPa and temperature from -29 ℃ to 121 ℃. The product is of novel design, Proper, rigorous testing, light operation, with strong corrosion resistance, wear resistance, erosion resistance, the oil industry is an ideal new equipment.
1. Using floating seat, two-way opening and closing, reliable sealing, opening and closing flexible.
2. The gate has a guide to give precision guidance, while the sealing surface are sprayed carbide, erosion-resistant.
3. Body bearing capacity is high, the channel is straight-through, fully open, and the gate diversion hole through and straight pipe similar to the flow resistance is very small. Stem composite filler, multiple seals, making the seal reliable, small friction.
4. Close the valve, turn the handwheel clockwise, the gate moved down to the bottom, due to the role of medium pressure, the inlet seal seat toward the gate direction, the formation of a larger seal than the pressure, forming the first seal . At the same time, the gate pressure to the outlet seal seat, a double seal.
5. Due to the double seal, the consumable parts can be replaced without affecting the pipework. This is our factory product priority over similar products at home and abroad an important feature.
6. Open the gate, turn the hand wheel counterclockwise, the gate moved up, diversion hole and channel hole through. With the rise of the gate, the through hole gradually increases to the limit position, the guide hole coincides with the passage hole, then fully open.
Design standards of Flat Gate Valve
Design and manufacture of standards: JB / T 5298
Structure length standard: JB / T 5298
Connection flange standard: GB / T 9113
Pressure temperature grade: GB / T 12224-2005
Test test standards: GB / T 13927-2008, JB / T 5298
Performance parameters of Flat Gate Valve
Part Name | Parts and materials | |||
JB/T77298 | API 6D | |||
Valve/bonnet | WCB | WCB | A352-LCB | A351-CF8N |
gate | 2Cr13+ENP | 20CrMoV+STL | ANSI 410+ENP | ANSI 316+ENP |
Valve stem | 2Cr13 | 2Cr13 | A182-F6a | A182-F316S |
Seat | 25+PTFE | 20CrMoV+STL | A105+PTFE | A182-F316+PTFE |
filler | NBR/FPM | Flexible graphite | Teflon | |
Gasket | 18-8/Flexible Graphite | |||
bolt | 35 | 35CrMo | A193-B7M | A193-B8 |
proper temperature | -29~250℃ | -29~550℃ | -46~250℃ | -40~200℃ |
Suitable media | Water, oil | Steam, oil | Propane, ethylene | Nitric acids |
The main shape and connection dimensions of Flat Gate Valve
Nominal diameter | The main dimensions and connection dimensions | ||||||
L | D | D1 | D2 | Z-Φd | H | D0 | |
Z43PF-16C | |||||||
100 | 150 | 215 | 180 | 155 | 8-Φ18 | 700 | 300 |
125 | 150 | 245 | 210 | 185 | 8-Φ18 | 798 | 350 |
150 | 150 | 280 | 240 | 210 | 8-Φ23 | 895 | 350 |
200 | 180 | 335 | 295 | 265 | 12-Φ23 | 1130 | 350 |
250 | 180 | 405 | 355 | 320 | 12-Φ25 | 1290 | 400 |
300 | 200 | 460 | 410 | 375 | 12-Φ25 | 1480 | 450 |
350 | 200 | 520 | 470 | 435 | 16-Φ25 | 1660 | 450 |
400 | 218 | 580 | 525 | 485 | 16-Φ30 | 1850 | 500 |
450 | 218 | 640 | 585 | 545 | 20-30 | 2080 | 500 |
500 | 229 | 705 | 650 | 608 | 20-34 | 2300 | 600 |
600 | 248 | 840 | 770 | 718 | 20-41 | 2680 | 800 |
700 | 286 | 910 | 840 | 788 | 24-41 | 3080 | 800 |
800 | 286 | 1020 | 950 | 898 | 24-41 | 3491 | 1000 |
Z43PF-25 | |||||||
100 | 150 | 230 | 190 | 160 | 8-Φ23 | 700 | 300 |
125 | 150 | 270 | 220 | 188 | 8-Φ25 | 798 | 350 |
150 | 150 | 300 | 250 | 218 | 8-Φ25 | 895 | 350 |
200 | 180 | 360 | 310 | 278 | 12-Φ25 | 1130 | 350 |
250 | 180 | 425 | 370 | 332 | 12-Φ30 | 1290 | 400 |
300 | 200 | 485 | 430 | 390 | 16-Φ30 | 1480 | 450 |
350 | 200 | 550 | 490 | 448 | 16-Φ34 | 1660 | 450 |
400 | 218 | 610 | 550 | 505 | 16-Φ34 | 1850 | 500 |
450 | 218 | 660 | 600 | 555 | 20-Φ34 | 2080 | 500 |
500 | 229 | 730 | 660 | 610 | 20-Φ41 | 2300 | 600 |
600 | 248 | 840 | 770 | 718 | 20-Φ41 | 2680 | 800 |
700 | 286 | 955 | 875 | 815 | 24-Φ48 | 3080 | 800 |
800 | 286 | 1070 | 990 | 930 | 24-Φ48 | 3491 | 1000 |
Structure picture of Flat Gate Valve
Packing & Delivery
FAQ
Q: Are you trading company or manufacturer?
A: We have our own factory. We are one of top pipe and pipe fittings factories in China and we have many skilled experts from around the world such as Germany, Canada, Bulgaria, Australia, Japan, and South Korea.
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 a free charge but do not pay the cost of freight.
Q: What are your terms of payment?
A: L/C,PAYPAL,Western Union, T/T(Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment) and so on.
