SFA-22C300T冷凍機(jī)安全閥 蒸發(fā)器氟利昂R22冷凍安全閥
冷凍機(jī)用安全閥概述:
冷凍機(jī)用安全閥是用于制冷設(shè)備上,作為設(shè)備的超壓保護(hù)裝置,當(dāng)設(shè)備運(yùn)行壓力升高超過允許值時(shí),閥門能自動開啟,并按照設(shè)備運(yùn)行要求,排放額定量介質(zhì),以防止設(shè)備壓力繼續(xù)升高,起到保護(hù)整個(gè)系統(tǒng)作用。
型號 Type |
SDA-22C300T |
公稱壓力 Nominal pressure |
300Lbs |
公稱通徑 Nominal diameter |
DN8~32(1/4~1'/4) |
強(qiáng)度試驗(yàn)壓力 Shell test pressure |
5.2MPa |
排放壓力 Relieving pressure |
≤1.1倍整定壓力 |
密封壓力 Seal pressure |
0.9倍整定壓力 |
密封性 Seal property |
氣壓試驗(yàn)2分鐘無泄漏、鹵素檢漏實(shí)驗(yàn)泄漏率 |
適用溫度 Suitable temperature |
-40~105°C |
適用介質(zhì) Suitable medium |
制冷劑、油、水等 |
主要零件材料 Main parts material
序號 NO. |
零件名稱 Part name |
材料 Materials |
1 |
閥體 Body |
HPb59-1/H62 |
2 |
密封圈 Seal |
PTFE |
3 |
閥瓣 Disc |
HPb59-1/H62 |
4 |
彈簧 Spring |
50CrVA |
5 |
調(diào)整螺母 Adj.nut |
HPb59-1/H62 |
6 |
墊片 Gasket |
T3 |
7 |
螺母 Nut |
HPb59-1/H62 |
額定排量(空氣)Lbs/min Relieving capacity (Air)
規(guī)定 Size mm(in) |
do mm |
整定壓力Psig(Mpa) Set pressure |
||||
200(1.38) |
250(1.72) |
300(2.07) |
350(2.42) |
400(2.76) |
||
DN8(1/4) |
6.3 |
9 |
11.5 |
13.5 |
15.5 |
18 |
DN10(3/8) |
7.0 |
12 |
14.5 |
17 |
20 |
22.5 |
DN15(1/2) |
7.8 |
14.5 |
18 |
21.5 |
25 |
28 |
DN20(3/4) |
11 |
29 |
35.5 |
42.5 |
49.5 |
56 |
DN25(1) |
18 |
77.5 |
95.5 |
114 |
132.5 |
150.5 |
DN32(1'/4) |
26.5 |
168 |
207 |
247 |
287 |
319.5 |
規(guī)格 Size mm(in) |
in |
H (mm) |
|
進(jìn)口A Inlet A |
出口B outlet B |
||
DN8(1/4) |
1/4-18MNPT |
5/8-18UNF |
80 |
DN10(3/8) |
3/8-18MNPT |
5/8-18UNF |
90 |
DN15(1/2) |
1/2-14MNPT |
7/8-14UNF |
95 |
DN20(3/4) |
3/4-14MNPT |
3/4-14FNPT |
100 |
DN25(1) |
1-11.5MNPT |
1-11.5FNPT |
120 |
DN32(1'/4) |
1'/4-11.5MNPT |
1'/2-11.5FNPT |
175 |