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NKZ41H, NKZ941H vacuum seal structure gate value Applicable medium Water, Steam, Air 

Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: NKZ41H


NKZ44 NKZ41Y-I NKZ944-I NKZ41H, NKZ941H vacuum seal structure gate value Applicable medium Water, Steam, Air
 
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NKZ44 NKZ41Y-I NKZ944-I NKZ41H, NKZ941H vacuum seal structure gate value Applicable medium Water, Steam, Air

 

1, the design of the vacuum seal structure packing room, the system is isolated from the atmosphere, with good environmental performance.
 2, selected materials, break all international standards, the overall high quality materials.
 3, sealing pair advanced and reasonable, to improve the sealing performance and long life.
 4, the opening and closing parts are parallel to the gate-way flexible seal, friction is small, open and close easily, easy maintenance, reliable sealing, excellent performance.
 5, stem quenched and the nitrogen treatment, with good corrosion resistance, resistance to abrasion and wear resistance.
 6, flange gaskets made of composite materials, expansion coefficient, airtight performance, ensure

 

Test pressure

PN/MPa
Nominal
pressure

MPa Seal test

Shell strength

Back seal test

Seat test

1.0

1.5

1.1

1.1

1.6

2.4

1.8

1.8

2.5

3.8

2.8

2.8

4.0

6.O

4.4

4.4

6.4

8.6

7.O

7.0

1O.O

15.O

11.O

11.O

 

operating range

Product type

Applicable medium

 Applicable temperature

NKZ41H
NKZ44H
NKZ944H-C
NKZ941H


Water, Steam, Air

≤425

NKZ41H(Y)
NKZ44H(Y)-I
NKZ944H(Y)-I
NKZ941H(Y)


Water, Steam, Air

≤550

 

Main spare material

Part name

Body Bonnet

Stem

Wedge gate

Sealing face

Yokenut

Parking

Fastener

NKZ44H
NKZ41H-C
NKZ944H-C
NKZ941H

WCB

2Crl3

25

H:alloy steel

Albronze

Expanding
comDound
graphite

High-grade
carbon steel

NKZ44
NKZ41Y-I
NKZ944-I
NKZ941


Cr.Mo steel

20CrlMo1VA
38CrMoAlA


Cr.Mo steel

 
Y:carbide alloy


Cr.Mo steel

 

Main size and weight

DN/mm
Nominal
diameter 

PN/MPa
Nominal
pressure

Main extemal and connecting dimensions /mm

Valve
weight/kg

Additional flange’s
dimensions/mm

D1 

D2 

z-d 

D0 

Dn 

50

1.O

250

345

160

125

1OO

16

3

4-18

250

28

45

49

58

65

270

395

180

145

120

18

3

4-18

250

40

48

64

75

80

280

425

195

160

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Company Info

Hontai Machinery and equipment (HK) Co. ltd [China (Mainland)]


Business Type:Manufacturer
City: Shenzhen
Province/State: Guangdong
Country/Region: China (Mainland)

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