Product Description
Feature of slow close check valve
Purpose
300X slow close check valve was composed by a diaphragm main valve, angle needle valve, ball valve, brass and spring-loaded check valve, pressure gauge and so on. Spring-loaded check valve installed in the control room formed at the entrance of the control when the upstream pressure is greater than the pressure control valve can be formed based on the time with field adjustment
This valve is used as an equipment to open and close pipeline and set with a small solenoid valve to control the main valve to open and close can carry out remote and local controls.
Characteristics: Easy installation and use,no complicated electric sensing mechanism with the control portion, uneasy to be failed, easily set table. compared with the conventional valves,featuring a small volume, alight weight, a small power, easy repair,convenient, safe and reliable use.
Principle: The pilot valve comes as a solenoid valve and then the solenoid valve is opened,the upper cavity pressure of the diaphragm will be reduced and the main valve is opened.the solenoid valve is closed and so os the main valve.
valve is opened.the solenoid valve is closed and so os the main valve. There are normal open and normal close two types of solenoid valve.the normally supplied is normal close one. An explosion-proof type solenoid can also be allocated.
Materials of major parts
| Name of parts | Material of parts |
| Body & cap | Ductile iron |
| Valve seat & valve disc | Brass |
| Valve stem | Stainless steel |
| Spring | Stainless steel |
| Surface | EPOXY |
| Valve sealing | EPDM/NBR |
Main size
| DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 |
| L | 180 | 180 | 180 | 240 | 240 | 250 | 285 | 360 | 400 | 455 | 585 | 650 | 800 | 860 | 960 | 1075 | 1075 | 1230 | 1650 | 1750 |
| A | 262 | 262 | 262 | 280 | 280 | 284 | 292 | 330 | 340 | 350 | 392 | 442 | 472 | 532 | 582 | 682 | 682 | 762 | 832 | 932 |
| A1 | 130 | 130 | 130 | 139 | 139 | 141 | 145 | 164 | 169 | 174 | 195 | 220 | 235 | 265 | 290 | 350 | 350 | 390 | 420 | 470 |
| H | 212 | 212 | 212 | 265 | 265 | 310 | 350 | 460 | 520 | 570 | 695 | 780 | 905 | 1025 | 1080 | 1135 | 1135 | 1270 | 1460 | 1640 |
| H1 | 179 | 179 | 179 | 210 | 210 | 215 | 245 | 305 | 365 | 415 | 510 | 560 | 658 | 696 | 735 | 665 | 665 | 725 | 865 | 975 |
| F | 116 | 116 | 116 | 170 | 170 | 180 | 210 | 275 | 310 | 355 | 460 | 500 | 580 | 640 | 715 | 830 | 830 | 920 | 980 | 1050 |
Performance specification
| Normal pressure (Mpa) | Body test pressure (Mpa) | Sealing test pressure (Mpa) | Applicable medium | Applicable temperature (°C) |
| 1.0 | 1.5 | 1.1 | water | 0~80 |
| 1.6 | 2.4 | 1.76 |
| 2.5 | 3.75 | 2.75 |
Installation Instruction
Main Picture
300X micro resistance water shut off slow close check valve
Our main products the FOLS series of electric actuator are elaborately designed and ma nufactured by the most advanced technology according to the practical situation. The FOLS series of electric actuator are ch aracterized by driving device and transmission gear in one, small volume, light weight, good-looking appearance, and remarkable performance. They have been widely used in various fields, such as paper making, pharmaceuticals, food, chemical, petroleum, electricity, fire protection, air-condition, water supply and industrial automation and so on.
Production Process
Test & Certifications
Trade Terms
1. Trade term: EXW FOB CIF etc.
2. Delivery way: By express, By Sea, By air.
3. Payment term: TT Western Union L/C etc.
4. Payment condition: Payment: T/TSample cost: 100% payment. Order payment: T/T, 35% deposits before production, 65% balance to be paid before dleiverying
5. Delivery time: Sample days: 5 working days Order days: 15 days
6. Shipping freight are quoted under your requests
7. Shipping port: Guangzhou, Shenzhen
8. Discounts are offered based on order quantities
9. MOQ:1pcs sample
Vietnam
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