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The
The liquid back pressure valve
Characteristic parameters Material Weight
The back pressure valve generally have two purposes: 1: 背压阀用于防止液体在重力作用下自流(或虹吸),这时候一般选用大于液体自身压力即可,如防止液位为2米药箱中的液体自流,可选用压力大于0.02MPa的背压阀,一般选用0.1MPa即可。 1: back pressure valve is used to prevent the liquid under the action of gravity gravity (or siphon), is generally used when the pressure can be greater than the liquid itself, such as to prevent the liquid level to 2 meters of liquid flowing in the chest, back pressure valve pressure is greater than 0.02MPa, generally used in the 0.1MPa. 2: 背压阀用于稳定泵的流量,如某些泵的流量随压力变化较大,可在泵的出口处设置背压阀,使泵的输出流量稳定,这时一般选择背压阀的压力为泵的实际使用压力或略小于泵的使用压力。 2: back pressure valve for the stability of the pump flow, such as the flow rate of the pump with the pressure change is bigger, can be set back pressure valve in the pump outlet, the pump output flow rate stability, when the general choice of back pressure valve pressure pump the actual use of the pressure or the use of slightly less than the pump pressure. 出口管道上的单向阀用于防止液体回流,背压阀用于保持泵出口有一恒定压力。 Check valve on the outlet pipe to prevent fluid backflow, back pressure valve to maintain a constant pressure pump outlet. Commonly used materials: PVC SUS304 SUS316 PTFE 主要特点: The main features: 1、为背压阀的两端管路提供压力表 1, for the ends of pipe back pressure valve for pressure gauge 2、防止虹吸现象的发生,消除投加点压力波动所引起的投加量变化 2, to prevent siphon phenomenon, eliminate the dosing point pressure fluctuations caused by the change of dosage 3、和脉动阻尼器配合使用减小水锤对系统的危害 3, and the pulsation damper to reduce the harm of water hammer with the use of the system 4、保护管路、弯头、接头,减小压力波动的冲击 4, the protection of pipe, elbow, joint, reduce the pressure fluctuations 5、与其他管路元件如脉动阻尼器配合使用才能发挥最大效用 5, and other piping components such as pulsation damper with the use to achieve maximum effectiveness

                                                                          背压阀尺寸规格表

型号规格

材质

公称通径(mm)

设定压力(MPa)

尺寸D(mm)

尺寸H(mm)

联接方式

WBF-P6/0.3

塑料

6

0.1-0.6

65

95

Rc1/8″

WBF-P8/0.3

塑料

8

0.1-0.6

65

95

Rc1/4″

WBF-P10/0.3

塑料

10

0.1-0.6

65

95

Rc3/8″

WBF-P15/0.3

塑料

15

0.1-0.6

65

115

Rc1/2″

WBF-P20/0.3

塑料

20

0.1-0.6

85

145

Rc3/4″

WBF-P25/0.3

塑料

25

0.1-0.6

85

150

Rc1″

WBF-P32/0.3

塑料

32

0.1-0.6

118

200

Rc1 1/4″

WBF-P40/0.3

塑料

40

0.1-0.6

150

250

Rc1 1/2″

WBF-P50/0.3

塑料

50

0.1-0.6

160

318

Rc2″

WBF-P65/0.3

塑料

65

0.1-0.6

178

375

Rc2 1/2″

WBF-P80/0.3

塑料

80

0.1-0.6

230

410

Rc3″

WBF-P100/0.3

塑料

100

0.1-0.6

255

450

Rc4″

WBF-S6/0.3

不锈钢

6

0.1-1 / 1-3

65

95

Rc1/8″

WBF-S8/0.3

不锈钢

8

0.1-1 / 1-3

65

95

Rc1/4″

WBF-S10/0.3

不锈钢

10

0.1-1 / 1-3

65

95

Rc3/8″

WBF-S15/0.3

不锈钢

15

0.1-1 / 1-3

65

115

Rc1/2″

WBF-S20/0.3

不锈钢

20

0.1-1 / 1-3

85

145

Rc3/4″

WBF-S25/0.3

不锈钢

25

0.1-1 / 1-2

85

150

Rc1″

WBF-S32/0.3

不锈钢

32

0.1-1 / 1-2

118

200

Rc1 1/4″

WBF-S40/0.3

不锈钢

40

0.1-1 / 1-2

150

250

Rc1 1/2″

WBF-S50/0.3

不锈钢

50

0.1-1 / 1-2

160

318

Rc2″

WBF-S65/0.3

不锈钢

65

0.1-1 / 1-2

178

375

Rc2 1/2″

WBF-S80/0.3

不锈钢

80

0.1-1 / 1-2

230

410

Rc3″

WBF-S100/0.3

不锈钢

100

0.1-1 / 1-2

255

450

Rc4″

多种壳体可选 :塑料:PTFE、PP、UPVC、PVDF 均可以制作

 

Metal: 304, 316, carbon steel, aluminum alloy, Hastelloy alloy

注:

Note:

1、介质温度:304、316下阀体:-18-90℃,PVC下阀体:-18-60℃,介质粘度:≤1000m㎡/s

1, the temperature of the medium: 304, 316: -18-90 DEG PVC valve, valve: -18-60 degrees, medium viscosity: less than 1000m square meters /s

2、于客户端的联接螺纹、接头和法兰可按客户的要求制作

2, threaded connections, flange joints and on the client side can according to customer requirements production

3、以上选型和相关参数仅供参考,购买时请咨询我公司或您的脉冲式容积泵供应商

3, the selection and the related parameters are for reference only, please consult our company or buy your impulse type displacement pump supplier