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Upper and lower display discharge valve
Model: HG5-81-1 / 2
Nominal diameter: DN50 ~ 150mm
Nominal pressure: PN1.0 ~ 6.4MPa
Suitable temperature: -29 ~ 650 ℃
Main material: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3, CF3M
Design and manufacture: GB12234-89
Structure length: GB12221-89
Flange size: JB / T79-94
Inspection and test: GB13927

Manual discharge valve performance and purpose
The valve is easy to operate, open the freedom, flexible and reliable movement; valve assembly and maintenance simple, reasonable sealing structure, sealing ring replacement convenient and practical. 
 
Manual discharge valve structure and principle:
The valve is mainly composed of 1. Valve body, 2. Valve flap, 3. Seal, 4. Stem, 5. Bracket, 6. Valve gland, 7. Hand wheel, 8. Law Blue, 9. Nut, 10. Set screws and other components, handwheel clockwise, the valve closed, the stem moves upward, the valve is on the exhibition, the handwheel clockwise, the valve closed, the valve stem down, the valve For the exhibition valve
 

Manual discharge valve main parts material

Part Name ZG1Cr18Ni9Ti series ZG00Cr18Ni10 series ZG1Cr18Ni12MO 2 Ti series ZG00Cr17Ni14MO 2 series WCB series
Body / bonnet ZG1Cr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12MO 2 Ti ZG00Cr17Ni14MO 2 WCB
Valve stem ZG1Cr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12MO 2 Ti ZG00Cr17Ni14MO 2 WCB
Disc ZG1Cr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12MO 2 Ti ZG00Cr17Ni14MO 2 WCB
Gasket 304 + PTFE 304L + PTFE 316 + PTFE 316L + PTFE Graphite +304
Stud 1Cr17Ni2 1Cr17Ni2 1Cr17Ni2 1Cr17Ni2 35CrMoA
Nut 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni9Ti 45


 Upper discharge valve connection size  

DN On the flange On the flange Under the flange Sealing seat
D1 D2 D3 D4 D5 D6
25 115 80 115 85 - -
32 135 100 135 100 - -
40 145 110 145 110 80 60
50 165 125 160 125 85 70
65 180 145 180 145 130 85
80 195 160 195 160 135 95
100 215 180 215 180 160 130
125 245 210 245 210 160 140
150 280 240 280 240 185 165
200 335 295 335 295 / /


 Unfolded discharge valve connection size

DN On the flange On the flange Under the flange Sealing seat
D1 D2 D3 D4 D5 D6
25 115 85 135 100 70 40
32 135 100 145 110 75 55
40 145 110 160 125 100 65
50 165 125 180 145 85 70
65 180 145 195 160 135 90
80 195 160 215 180 155 130
100 215 180 245 210 195 135
125 245 210 280 245 180 145
150 280 240 335 295 210 185
200 335 295 405 355 / /


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