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Elastic Seated Gate Valve with Dark Rod

A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category.

Key words:

Classification:

Ductile iron valve series

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Description


A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category. The valve may be operated manually or with a hand wheel, handle or pedal, and may also be controlled to vary the pressure, temperature and flow rate of the fluid medium. The valve can perform continuous or repeated operations on these changes, such as safety valves installed in hot water systems or steam boilers. In more complex control systems, automatic control valves are used as required by external inputs (I. e., to adjust the changing set point of the flow through the pipeline). The automatic control valve does not need to be manually operated according to its input and setting, so that the valve can accurately control the various requirements of the fluid medium. Valves can also be divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual phase steel valves, plastic valves, non-standard customized valve materials, etc.

◆ Product use

Z45X dark rod elastic seat seal gate valve, the use of the gate integral plastic deformation compensation effect to achieve good sealing effect, to overcome the general gate valve sealing poor, leakage and rust phenomenon, more effectively save the installation space. It can be widely used in tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electric power, shipbuilding, metallurgy, energy system and other fluid pipelines as regulators and interception devices.

◆Technical parameters

Nominal pressure: 1.0 ~ 2.5MPa
Nominal diameter: 50~1200mm
Working temperature: 0~80 ℃
Applicable medium: water, gas, etc
Flange standard: GB/T17241.6, ASME B16.1, ASME B16.2
Test standard: GB/T 13927, API 598




◆ Main parts materials

Serial Number Part Name Material
1 Valve body ductile iron
2 Ram Ductile iron coated with EPDM or NBR
3 Hexagon socket bolt carbonization treatment
4 Sealing ring nitrile rubber
5 Bonnet ductile iron
6 Stem Stainless Steel
7 "○" shaped seal ring nitrile rubber
8 Thrust bearing tin bronze
9 Bolt carbon steel
10 Gland ductile iron
11 Dust cover nitrile rubber
12 Handwheel (drive cap) cast iron

 

◆ Main outline connection dimension

DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
L    F4 150 170 180 190 200 210 230 250 270 290 310 330 350 390
BS 178 190 203 229 254 267 292 330 356 381 406 432 457 508
F5 250 270 280 300 325 350 400 450 500 550 600 650 700 800
Ha 313 332 372 424 497 562 680 837 948 1010 1220 1280 1480 1665
Hc 355 375 415 476 540 600 720 875 990 1050 1245 1310 1560 1750

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