

WENZHOU PROM TRADING CO.,LTD.
Contact Person:Lucy Guo
Tel/Wechat/Watsapp:+86 15990723109
E-mail: promtrading@sina.com
Skype:lucysolac
Legal Add:Room 804, Block 15, Jinlongyuan, No.81, Nixiang South Road, Kunpeng Street, Wenzhou Maritime Economy Development Demonstration Zone, Wenzhou, Zhejiang, China
Factory Add:Binhai industrial zone, Longwan, Wenzhou, Zhejiang, China
NON-RISING STEM DUCTILE IRON GATE VALVE
Cast iron gate valve with non-rising stem 30h39r
Cast iron gate valve is designed as a shut—off device for completely shutting off and switching on the flow of the medium. Cast iron gate valves are used as a shut-off device in pipeline systems (water, steam, oil products with temperatures up to 225 C).
The material of the body parts is cast iron. The cast iron gate valve is installed on a horizontal pipeline with a flywheel facing up with a vertical spindle arrangement. On a vertical pipeline, it is placed in the "flat" position with the spindle positioned horizontally. The cast iron gate valve belongs to the class of repaired products.
Technical characteristics of cast iron flanged gate valve 30h39r
1. Regardless of the pipeline diameter used, 30h39r valves are installed on pipelines with an operating pressure of up to 10 atm. in accordance with the parameters of this passport: Product design and operation of cast iron gate valve 30h39r
2. A gasket made of paronite or rubber is installed between the lid and the body. In the latter case, a cast-iron gate valve is installed on a pipeline with a working medium temperature of no more than 90 degrees.
3. An AL-grade stuffing box is installed in the stuffing box. It prevents the passage of the medium between the spindle and the lid.
4. An upper seal is used to unload the oil seals when the valve is open. The shutter includes shutters and a spindle with a removable shutter.
5. The shutter is closed by rotating the handwheel of the cast-iron gate valve. Through these actions, the spindle transmits translational motion to the gates through a threaded sleeve. Using a lever to increase effort is strictly prohibited.
6. The shutter is fully closed with maximum force on the flywheel. It creates a tight overlap of the passage.
Drawing of a cast iron gate valve with non-rising stem

Materials of Main Parts
| No. | Part Name | Material |
| 1 | Body | QT450 |
| 2 | Disc | QT450+EPDM |
| 3 | Stem nut | Ductile iron, brass |
| 4 | Stem | Steel, 2Cr13 |
| 5 | Gasket | EPDM |
| 6 | Bolt/nuts | Steel |
| 7 | Bonnet | QT450 |
| 10 | Handwheel | Grey iron |
Main Size & Weight
| PN, MPa | DN, mm | L | D | D1 | n-фd | D0 | H |
Approximate weight, kg |
| 1,0 | 50 | 150 | 160 | 125 | 4-ф18 | 160 |
340 |
6,5 |
| 65 | 170 | 180 | 145 | 4-ф18 | 160 | 370 |
7,5 | |
| 80 | 180 | 195 | 160 | 4-ф18 | 200 | 410 |
9 |
|
| 100 | 190 | 215 | 180 | 8-ф18 | 200 | 450 |
12 | |
| 125 | 200 | 245 | 210 | 8-ф18 | 240 | 480 |
20 | |
| 150 | 210 | 280 | 240 | 8-ф23 | 240 | 550 |
28 | |
| 200 | 230 | 335 | 295 | 8-ф23 | 320 | 630 |
39 | |
| 250 | 250 | 390 | 350 | 12-ф23 | 320 | 750 | 65 | |
| 300 | 270 | 440 | 400 | 12-ф23 | 400 | 820 | 90 | |
| 350 | 290 | 500 | 460 | 16-ф23 | 400 | 980 | 165 | |
| 400 | 310 | 565 | 515 | 16-ф26 | 500 | 1010 | 200 | |
| 450 | 330 | 615 | 565 | 20-ф25 | 500 | 1270 | 251,5 |
|
| 500 | 350 | 670 | 620 | 20-ф26 | 500 | 1270 | 322,5 | |
| 600 | 390 | 780 | 725 | 20-ф30 |
500 | 1390 | 445 |
| PN, Па | DN, mm | L | D | D1 | n-фd | D0 | H |
Approximate weight, kg |
| 1,6 | 50 | 150 | 160 | 125 | 4-ф18 | 160 |
340 |
6,5 |
| 65 | 170 | 180 | 145 | 4-ф18 | 160 | 370 |
7,5 | |
| 80 | 180 | 195 | 160 | 4-ф18 | 200 | 410 |
9 |
|
| 100 | 190 | 215 | 180 | 8-ф18 | 200 | 450 |
12 | |
| 125 | 200 | 245 | 210 | 8-ф18 | 240 | 480 |
20 | |
| 150 | 210 | 280 | 240 | 8-ф23 | 240 | 550 |
28 | |
| 200 | 230 | 335 | 295 | 12-ф23 | 320 | 630 |
39 | |
| 250 | 250 | 405 | 355 | 12-ф26 | 320 | 750 | 68 | |
| 300 | 270 | 460 | 410 | 12-ф26 | 400 | 820 | 95 | |
| 350 | 290 | 520 | 470 | 16-ф26 | 400 | 980 | 170 | |
| 400 | 310 | 580 | 525 | 16-ф30 | 500 | 1010 | 210 | |
| 450 | 330 | 640 | 585 | 20-ф30 | 500 | 1270 | 260 | |
| 500 | 350 | 705 | 650 | 20-ф34 | 500 | 1270 | 330 | |
| 600 | 390 | 840 | 770 | 20-ф41 |
500 | 1390 | 455 |
*The above dimensions are for reference only.
