Butterfly Valve

Butterfly Valve

• Product Size and Rated Pressure:   
  Wafer Type , Lug Type:
  CLASS 150 (PN20)   NPS 2~60 (DN50-1500)
  Double Flanged Type: 

• CLSSS 300 (PN50)   NPS 2~60 (DN50-1500)

• CLASS 600 (PN100) NPS 2~48 (DN50-1200) 
  CLASS 900 (PN150) NPS 6~36 (DN150-900)

Fire Safe Testing : ISO10497,API607
Top Flange Standrad: ISO5211
Connection Standrad: ANSI/ASME B16.5,ANSI/ASME B16.47,
                                    ISO 7005,EN1092,DIN 2501
Face to Face Standrad: API 609,MSS SP-68,ISO 5752,EN 558-1
Test and Inspection:  API 598,API 6D,ISO 5208,EN12266-2

With the excellent working performance ,this item is ideally suited for oil,chemical,

gas,power,metallurgy,water treatment,paper,marine,city heating system and medicament.

Design Features:

1.Packing is made of high-strength weaving graphite and weaving carbon fiber,providing reliable sealing performance.

2.Self-lubricated bearing can support shaft,eliminate abrasion.

3.Disc-shaft connection is achieved by key and thread pin with reliable performance,

the design can allow field replacement.

4.Disc sealing ring is formed by multiply non-corrosive alloy steel plate and graphite through the special compression technique.This lapped disc sealing ring offers positive sealing and minimizes the valve operating torque,lengthen service life.

5.Packing gland is two-section design advoiding shaft jamming due to tilting placement.

viding the highest strength and flowing capability.

7.Offset construction:unique offset construction reduces the abrasion between disc sealing ring and seat,prevents the leakage due to the abrasion,and increases the service life .