Brand Name: DUNAN
Model Number: DN20
Place of Origin: Zhejiang, China (Mainland)
Standard or Nonstandard: Standard
Structure: Ball
Pressure: Medium Pressure
Power: Pneumatic
Material: Brass
Temperature of Media: Medium Temperature
Media: Gas
Port Size: 1/4’-3 1/8’
Application: General
Certification: UL ROHS
Applicable of refrigerant: R134A R22 R407C R410A R32 ETC
Max operation pressure: 4.2MPa
Latest Wholesale different types brass ball valve dn20
important part valve system split type air conditioner, play outdoor unit is connected to the indoor unit, and close or open the refrigerant circuit, vacuum or refrigerant charging effect.
Uses and Features
Suitable for large commercial, central air conditioning and refrigeration and other refrigeration equipment;
use of modified PTFE seat sealing, switch light;
valve stem just rotate 90 °, that is able to fully open, fully closed;
When open cavity was straight-through, flow, small resistance;
simple shape, small installation space.
Scope
Suitable refrigerants: R134a / R22 / R407C / R410A;
maximum working pressure: 4.2MPa;
For fluid temperature: -30 °C ~ + 120 °C;
Ambient temperature: -20 °C ~ + 60 °C.
Product specifications: |
Spec
|
tubing size
φmm
|
Nominal
Diameter
mm |
One line hole
Diameter
mm
|
connector
thread size
|
Valve cap
thread size
|
Charging
thread
size
|
Matching capacity
|
|
kW
|
TR
|
|||||||
DG4
|
6.35(4.8,8)
|
4.8
|
7.5(7,5.5)
|
7/16-20UNF
|
M16×1
(M14×1) |
7/16-20
UNF-2A 1/2-20 UNF-2A |
2.5~5
|
0.71~1.73
|
DG8
|
9.52(8)
|
8(7)
|
7.5(7)
|
5/8-18UNF
|
M16×1
(M14×1) |
2.5~12.5
|
0.71~3.57
|
|
DG10
|
12.7(12)
|
13(12.5)
|
9.5
|
3/4-16UNF
|
M18×1
(M20×1) |
4.25~12.5
|
1.21~3.57
|
|
DG13
|
15.88
|
16
|
12.5
|
7/8-14UNF
|
M22×1.5
(M25×1.5) |
7.5
|
2.14
|
|
DG16
|
19
|
20(19)
|
15.5
|
17/16-14UN
|
M26 ×1.5
(M28×1.5) |
12.5
|
3.57
|
|
DG20
|
22.4
|
22
|
17
|
5/4-12UN
|
M30×1.5
|
15~30
|
4.29~8.57
|
|
DG25
|
25.4
|
25
|
22
|
23/16-12UN
|
M35×1.5
|
SPEC
|
A mm |
B mm |
C mm |
H1 mm |
H2 mm |
DG4
|
——
|
(<23.5)
|
38
|
15
|
(37.5)
|
DG8
|
(32)
|
(<24.5)
|
(42.5)
|
||
DG10
|
(33)
|
(<29.5)
|
18
|
(49)
|
|
DG13
|
(35)
|
(<33)
|
44
|
18
|
(53.5)
|
DG16
|
(36)
|
(<39)
|
23
|
(63.5)
|
|
DG20
|
(39)
|
(<50)
|
54
|
28.5
|
(70)
|
DG22
|
|||||
DG25
|