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Electric Butterfly Valve

Electric Butterfly Valve


Description of Electric Butterfly Valve:

ZECO electric butterfly valve is named after electric actuator operated. Butterfly valve in the pipeline for a long time to use, may be due to special medium, temperature or pressure causes a small number of problems, encounter these problems, we must think of ways to solve, and in order to prevent, no problems of the product for regular maintenance. The leakage of stem sealing usually caused by packing abrasion,can make up for tightening the packing gland. Too large packing force may increase stem friction, and make stem to be hard operated and accelerated the abrasion of packing. 

Good sealing inside valve will be affected the sealing performance because of the damage or normal abrasion. For the harsh working conditions, the estimation and repairment beyond the scope of this manual, due to a variety of different structural forms, if need to know in advance, should cooperate with the manufacturer to find a suitable method. The external construction of valve is easy to check and maintain. So rational approach should be taken to prevent mechanical to damage the valve, prevent valve corrosion by the sediments in the atmosphere、chemical substances or wet gas and deterioration of its quality. Thread、bearings or gears work like the working interface should be periodic lubrication.

Features of Electric Butterfly Valve:

1. In the case of no special request, ZECO electric butterfly valve is usually equipped with German AUMA electric actuator, in order to use for a long time in the pipeline, ZECO wouldn't use the price to change the quality, our goal is to allow the user to select ZECO because ZECO product quality and reliable can use for a long time for the user in the long-term use of reduce the maintenance costs of pipeline, rather than a low price;

2. ZECO electric butterfly valve adopts hard sealed valve seat. The hard sealed valve seat surface can be surfacing welded to prevent the valve from being unable to be sealed due to damage of the valve seat and sealing surface by strong abrasive media;

3. The stem of ZECO electric butterfly valve is designed in anti blow out, preventing the stem blow out at the time of maintenance ;

4. The material of ZECO electric butterfly valve is produced in accordance with international standards.

 

Material of Electric Butterfly Valve:

No

Part

Material

1

Body

ASTM A216 WCB + 13Cr

2

Seal Ring

Graphite + SS304

3

Retainer Flange

ASTM A105

4

Pin

ASTM A276 410

5

Disc

ASTM A216 WCB

6

Stem

ASTM A276 410

7

Stem Packing

Graphite

8

Stem Beating

SS304 + PTFE

9

Bolt

ASTM A193 B7

10

Nut

ASTM A194 2H

11

Yoke

ASTM A216 WCB


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