Customization: | Available |
---|---|
After-sales Service: | 1 Year |
Warranty: | 1 Year |
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Features:
(1). Sealing for body and cover is metal to metal seal, improve the sealing performance.
(2). Stem and cover designed with backseat sealing structure is easy to take pressure change valve stem packing.
(3). The body is made of high quality alloy steel steel forgings, no perforation design, safe and reliable.
(4). Sealing surface spray weld hard alloy, with corrosion resistance, resistance to erosion and wear resistance performance.
(5). Body pad ring groove can according to user's requirement overlaying austenitic stainless steel, improve the corrosion resistant ability to enhance its service life.
(6). Use spring preload load in the disc and seat, completely realize two-way seal.
Main Technical Specification
Standards |
API 6A |
Nominal diameter, in.(mm): |
2.1/16" - 7.1/16" (50, 65, 80, 100, 150) |
Nominal Pressure, psi (MPa) |
2000 psi - 15000 psi (14-105) |
Environment temperature |
from -60°С to +40°С |
Working temperature |
LU (51ºF/-46ºC ~ 250ºF/121ºC) |
Material Grades |
AA, BB, CC, DD, EE, FF, HH, FF |
Specification level |
PSL1 - PSL4 |
Performance level |
PR1, PR2 |
Material Class |
Min. Material Requirements |
|
Outer parts |
Internals |
|
AA |
Carbon or Low Alloy Steel |
Carbon or Low Alloy Steel |
BB |
Carbon or Low Alloy Steel |
Stainless Steel |
CC |
Stainless Steel |
Stainless Steel |
DD |
Carbon or Low Alloy Steel |
Carbon or Low Alloy Steel |
EE |
Carbon or Low Alloy Steel |
Stainless Steel |
FF |
Нержавеющая сталь |
Stainless Steel |
HH |
Corrosion Resistant Alloy |
Corrosion Resistant Alloy |
ZZ |
Determined by User |
Determined by User |
Note: Classes from DD shall be NACE MR0175/ISO 15156 compliant
API Classification |
Operating Temperature |
|||
Min (°C) |
Max (°C) |
Min (°C) |
Max (°C) |
|
K |
-60 |
82 |
-75 |
180 |
L |
-46 |
82 |
-50 |
180 |
N |
-46 |
60 |
-50 |
140 |
P |
-29 |
82 |
-20 |
180 |
S |
-18 |
60 |
0 |
140 |
T |
-18 |
82 |
0 |
180 |
U |
-18 |
121 |
0 |
250 |
V |
2 |
121 |
35 |
250 |
X |
-18 |
180 |
0 |
350 |
Y |
-18 |
345 |
0 |
650 |