Product model: V231
Nominal diameter: DN20 ~ 250mm
Nominal pressure: PN1.6, 2.5, 4.0 MPa
Applicable temperature: Liquid ≤ 140 ℃, gas ≤ 80 ℃
Main materials: Cast iron, cast steel, cast stainless steel
Flange standard: DIA (flange standard can also be provided according to user requirements)
PRODUCT OVERVIEW
The direct acting self operated pressure regulating valve is composed of valve body, valve seat, valve core components and other parts. It is an energy-saving product that automatically regulates the pressure only by relying on the pressure change of the regulated medium without external energy. It can be used as a pressure control device for non corrosive (maximum temperature 350 ℃) liquids, gases, steam and other media. It is widely used in petroleum, chemical industry, metallurgy, light industry and other industrial departments and urban heating and heating systems.
PRODUCT MODEL AND SPECIFICATION
Category | Pressure control regulating valve | Differential pressure rising valve open | ||||||
Rear pressure regulating valve | Front pressure regulating valve | Differential pressure rising valve open | Differential pressure rising valve open | |||||
Hard seal | Soft seal | Hard seal | Soft seal | Hard seal | Soft seal | Hard seal | Soft seal | |
Model | V230 D01 | V230D01 | V230D02 | V231D02 | V230D03 | V231D03 | V230D04 | V231D04 |
Specifications | DN15-250 | |||||||
MAIN TECHNICAL PARAMETERS
Nominal diameter mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | |
Rated flow coefficientKvs | 3.2 | 5 | 8 | 12.5 | 20 | 32 | 50 | 80 | 125 | 160 | 320 | 450 | 630 | |
Nominal pressureMPa | 1.6、 4.0 | |||||||||||||
Z value | 0.6 | 0.6 | 0.6 | 0.55 | 0.55 | 0.5 | 0.5 | 0.45 | 0.4 | 0.35 | 0.3 | 0.2 | 0.2 | |
Maximum operating temperature ℃ | V230 V231 | Liquid ≤ 140, gas ≤ 80 | ||||||||||||
Hard seal V230 | Equipped with isolation tank ≤ 200 | Equipped with isolation tank and extension ≤ 300 | ||||||||||||
Equipped with isolation tank and heat sink ≤ 200 | ||||||||||||||
Pressure balancing element | corrugated pipe | Rolling diaphragm | ||||||||||||
Flange standard | DIA （Flange standard can also be provided according to user requirements) | |||||||||||||
Valve body material | PN16: cast iron (working temperature ≤ 200 ℃); PN4.0: cast steel, cast stainless steel (working temperature ≤ 350 ℃) | |||||||||||||
Valve core material | stainless steel; The soft seal is stainless steel inlaid rubber ring | |||||||||||||
Maximum working pressure Mpa | Weigh the pressure (pay attention to △ Pmax and the relationship between working pressure and working temperature) | |||||||||||||
Note:
1. When liquid ＞ 140 ℃ and gas ＞ 80 ℃, the valve shall be inverted;
2. Z value: noise measurement coefficient, which is used to measure the noise. See the selection guide of self operated regulating valve for specific calculation.
MAIN DIMENSIONS AND WEIGHT
Nominal diameter mm | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 |
L mm | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 |
B mm | 212 | 238 | 238 | 240 | 240 | 275 | 275 | 380 | 380 | 295 | 325 | 372 |
Approximate weightkg | 6.7 | 9.7 | 13 | 14 | 17 | 29 | 33 | 60 | 70 | 80 | 140 | 220 |
ACTUATOR SIZE AND WEIGHT
Effective area cm 2 | 32 | 80 | 250 | 630 |
D （mm） | 172 | 172 | 263 | 380 |
H （mm） | 440 | 435 | 440 | 520 |
Approximate weightkg | 7.5 | 7.5 | 13 | 28 |
Note: the total height and weight of direct acting self operated valve is the sum of the height and weight of control valve and actuator.
