1.Description.
Socket flexible seat seal gate valve, intubated soft seal gate valve, also known as socket type soft seal gate valve;The main feature of the socket type soft sealing gate valve is to set two caps at both ends of the valve, which form a socket connection with the pipe, that is, the pipe is directly inserted into the socket, which is very convenient to install, and the rubber sealing ring is placed between the pipe and the socket to achieve sealing.This kind of connection is different from the flange connection, which is called the flexible connection or stress-free connection. Its advantage is that it allows the pipe to stretch at the connection with the socket, which can compensate for the change in the length of the pipe and eliminate the material stress caused by the expansion and contraction of the pipe due to heat, so as to achieve the purpose of protecting the pipe.
2.Main parts&material
| No. | Part | Material |
| Gasket | Body | GGG50 |
| 2 | Disc | EPDM+DI |
| Axis Guide | Bonnet Gasket | NBR |
| 4 | Stem | SS420 |
| 5 | Bonnet | GGG50 |
| 6 | Thrust Washer | Brass |
| Diaphragm pressure plate | Thrust Sleeve | Brass |
| Hinge Pin | Gland | GGG50 |
| 9 | Hand wheeel | GGG50 |
| Seal Ring | Bolts | SS304 |
| Guide plate | Washers | SS304 |
| 12 | Dust Cover | NBR |
| Plug | O-Ring | NBR |
| 14 | O-Ring | NBR |
| 15 | O-Ring | NBR |
| 16 | Stem Nut | Brass |
3.Features
-Integral bonding: the valve plate adopts high quality rubber for integral bonding. The domestic rubber vulcanization technology enables the vulcanized valve plate to ensure accurate geometric dimensions, and the rubber is firmly connected with the nodular cast iron valve gate.Not easy to fall off and elastic memory.
-Corrosion resistance of socket type soft seal gate valve: the valve body is coated with powder epoxy resin, which can prevent corrosion and rust of the valve body and can be used in sewage system.
-Socket type soft seal gate valve is not easy to be broken: in the past, traditional cast iron gate valve is often broken due to external impact, collision or overlap.Due to the use of ductile iron valve, this situation can be greatly reduced.
-Socket type soft seal gate valve "O" ring seal ring: because the stem USES three "O" ring seal design, can reduce the friction resistance when the switch, greatly reduce the leakage phenomenon and can not stop water construction to replace the seal ring.
-Help drinking: as the body is coated with non-toxic epoxy resin, the inner and outer surfaces of the gate are completely covered with rubber without rust water or corrosion, which can be used for drinking.
-Precision casting valve body: the valve body adopts precision casting, the precise y -f size makes the valve body can guarantee the valve sealing without any finishing work.
-Light weight: the valve is made of spheroidal ink casting, the weight is about 20% to 30% less than the weight of traditional gate valve.Easy installation and maintenance.Open and close the valve and install it on the fire road of the water pipe.
4.Execution standard
| Design standard | GB/T12465 | |
| Flange connection standard | GB/T9113 | |
| Structural length standard | GB/T12465 | |
| Inspection testing standard | GB/T12465 | |
5.Technical parameters
| Nominal diameter | DN100~DN2400(4"~96") | |
| Nominal pressure | PN10 | |
| Operating temperature | 0°C~85°C | |
| Seal test | 1.25PN | |
| Shell test | 1.5PN | |
| Suitable medium | Water | |
6.Operating principle
This series of soft-seal gate valves are mainly composed of valve body, cover, gate, stem, stem nut, handwheel and other parts.Turn the handwheel (or turn cap) to rotate the stem, and the stem nut drives the gate to move in a straight line perpendicular to the fluid in the body chamber to achieve the purpose of opening and closing.