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Classification：Relief valve
Trade names：
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| A41H-16C opening a little type relief valve |
| Classification of the products: A41H-16C |
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| A21F , A21H-C type are suitable for working temperature ≤ air , ammonia , oil gas of 200 degrees Centigrade Wait for it on the equipment or pipeline of the medium. A21W-P , R type are suitable for temperature ≤ 200 degrees Centigrade of gas or liquid equipment or pipeline with corrosivity , as exceeding pressing protectors. KA21Y type is suitable for temperature ≤ liquefied petroleum gas of 100 degrees Centigrade ,etc.. |
Main spare part material :
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NO. |
Part name |
A21H-C/A21F material |
A21W-P/A21F-P material |
A21Y-R material |
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1 |
The tube connecting |
20 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
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2 |
In charge of connecting the nut |
35 |
2Cr13 |
1Cr18Ni9Ti |
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3 |
Valve seat |
35 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
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4 |
The valve has body |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
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5 |
Valve one |
2Cr13/2Cr13+PTFE |
1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE |
1Cr18Ni12Mo2Ti |
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6 |
Spring seat |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
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7 |
Spring |
50CrVA |
50CrVA wraps up and covers the fluoroplastics |
50CrVA wraps up and covers the fluoroplastics |
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8 |
Locknut |
Q235-A |
ZG230-450 |
1Cr18Ni9Ti |
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9 |
The spring leading and padding |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
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10 |
Regulate the nut |
Q235-A |
2Cr13 |
1Cr18Ni12Mo2Ti |
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Seal the surface material |
" Y " type piles and welds the base hard alloy of Co, " H " type piles and welds D507, " W " type is a noumenonn of the valve |
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External dimension and size of connecting :
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Type |
Nominal and open directly |
do |
d |
Do |
M |
d1 |
D1 |
L |
L1 |
≈ H |
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KA21-16C
A21H-16C
A21H-40
A21W-16P
A21W-40P
KA21-16P |
15 |
12 |
15 |
20 |
M27* 1.5 |
G 1 /2" |
30 |
35 |
76 |
66 |
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20 |
16 |
20 |
25 |
M33* 1.5 |
G 3 /4" |
35 |
40 |
87 |
68 |
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25 |
18 |
25 |
31 |
M39* 1.5 |
G1" |
40 |
50 |
100 |
105 |
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A21Y-64
A21Y-64P
A21Y-100
A21Y-100P |
15 |
10 |
15 |
25 |
M39* 1.5 |
G1" |
44 |
50 |
100 |
66 |
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20 |
10 |
20 |
31 |
M39* 1.5 |
G1" |
44 |
50 |
100 |
68 |
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25 |
12 |
25 |
31 |
M39* 1.5 |
G1" |
44 |
50 |
100 |
105 |
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A21W-160/160P |
15 |
8 |
20 |
/ |
M24* 2 |
G1" |
44 |
50 |
100 |
261 |
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20 |
8 |
25 |
/ |
M33* 2 |
G1" |
44 |
50 |
100 |
261 |
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25 |
8 |
28 |
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M36* 2 |
G1" |
44 |
50 |
100 |
285 |
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