德国 AZ 带冲洗装置的特殊旋塞阀

TYPE “SP”

Plug-Valves with Flushing Device

5.6 maintenance free, self-lubricating

easy accessible adjustment of the plug

face to face dimensions and flanges acc. to DIN und ANSI also with actuators available

Kükenhähne mit SpülanschlußType “SP”

Order example: A-2-DN50-BW-PN25-1.4408 SP-E-2-DN25-SW-PN25

A = welding end, 2 = twoway, DN50 = size, BW = buttwelding end,PN25 = rating, 1.4408 = body material,

SP = flushing valve, E = welding end, 2 = two way, DN25 = size,SW = socketwelding end, PN25 = rating

AZ-plug valves with flushing device for plug bore cross-flushing are preferably used where products tend to deposit sediments, stick, harden, cristallize or polimerize. E.g. tary products, bitumen, sulfur , VC + VCM, UREA etc.

All these products are inclined to deposit in closed plug passage, which could then lead to a total blockage of the valves.

These problems can be completely prevented by plug bore cross-flushing with a suitable flushing liquid.Also, cross-flushing is used to seperate various liquids from each other or to prevent contaminations.Way of Flushing:

1. Cross-flushing without connection to any side of the main line (two cross-flushing line connections: 1. intake,

2. outlet). (picture 1)

2. Cross-flushing with connection to one side of the main line: only one flushing connection into the straight through plug with additional bore hole, or in threeway plugs, e,g, plug form “T4”. (picture 2)

3. Indirect flushing through flushing connections provided on the side of the plug (especially for steam flushing at high speed to prevent damage of the PTFE sleeve). (picture 3).

4. Special flushing with bouncing plate on counterside etc.AZ-Plug Valves with flushing device can be supplied in any design requested: as flanged, threaded, butt weld or socket weld valves, hand operated as well as with pneumatic or electric actuator. The entire valve with flushing device can also be supplied with heating jackets. (see leaflet 1.5).

(picture 1)

(picture 2)

(picture 3)

Plug-Valves with Flushing Device

hand lever position indicator

(option see leaflet 5.4)

(see leaflet 5.4)flushing valve ”SP”

normal operation flushing operation

D L

C

E

A

Type “DSK”

On enquiry / order:Please state material for body, plug and jacket.

Special-Valve-Combinations with Flushing Device

protection inset

Flushing / Pressure Expansion Order example: DSK-6”-BW-150-1.4408 SP-E-1/2”-SW-150

DSK = Type “DSK”, 6” = size, BW = buttwelding end, 150 = rating 1.4408 = body material, SP = flushing valve, E = welding end,1/2” = size, SW = socket welding end, 150 = class

flushing valves

example 1

example 2