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DWYER PG系列氣用微壓/微差壓開關(guān)

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產(chǎn)品簡介

產(chǎn)品名稱:PG系列氣用微壓/微差壓開關(guān)產(chǎn)品型號:PG可調(diào)可視設(shè)定點刻度特點：大膜盒

詳細(xì)介紹

產(chǎn)品名稱:  PG系列氣用微壓/微差壓開關(guān)
產(chǎn)品型號:  PG

可調(diào)可視設(shè)定點刻度

特點：大膜盒，高靈敏度，外部可視刻度可調(diào)，快動或水銀密封開關(guān)，被列入UL，FM和CSA清單
介質(zhì)：空氣及相容氣體
可調(diào)范圍：250-7500Pa ～ 3.5-35 KPa
工作溫度：0-82.2 ℃
額定壓力：不能超過的可調(diào)工作壓力范圍
接點容量：SPDT為4A/120VAC, 2A/240VAC,SPST為6A /120VAC, 3A/240VAC
安裝方式：垂直
尺寸：177.8X101.6mm
重量：3.4Kg

選型表：

型號范圍死區(qū)開關(guān)類型
 PG-153-P11-30" water (.25-7.47 kPa)1.9" w.c. (0.47 kPa)SPDT Mercury
 PG-153-P20.5-5 psid (.03-3.45 bar)0.4 psid (0.38 bar)SPDT Mercury
 PG-3-P11-30" water (.25-7.47 kPa)1.3" w.c. (0.32 kPa)SPST Mercury¹
 PG-3-P20.5-5 psid (.03-3.45 bar)0.3 psid (0.21 kPa)SPST Mercury¹
 PG-7000-153-P11-30" water (.25-7.47 kPa)4" w.c. (1.0 kPa)SPDT Snap
 PG-7000-153-P20.5-5 psid (.03-3.45 bar).5 psid (.035 bar)SPDT Snap
 PG-7000-153HS-P11-30" water (.25-7.47 kPa)4" w.c. (1.0 kPa)SPDT Hermetically Sealed Silver Snap
 PG-7000-153HG-P11-30" water (.25-7.47 kPa)4" w.c. (1.0 kPa)SPDT Hermetically Sealed Gold Snap

舉例
PG 
 
153
P1PG-153-P1 (Vacuum) (Pressure) (Differential Pressure) Control, fixed deadband, automatic reset, SPDT mercury switch, adjustable range 1.0-30" w.c. (25-760 bar).ULFMCSA
結(jié)構(gòu)
PG 
 
 
 General purpose enclosure, NEMA-1 (standard)ULFMCSA
復(fù)位操作
PR 
 
 
 Manual reset, operates on pressure increase automatically, resets on decrease1ULFMCSA
 PRL 
 
 
 Manual reset, operates on pressure decrease automatically, resets on increase1 ULFMCSA
封裝選項
 W
 
 
 Weather-resistant enclosure, NEMA-2, 3R FMCSA
 E
 
 
 Explosion-proof enclosure, NEMA-7, 9, Class I, Groups C & D; Class II, Groups E, F & G, includes drain, specify if for pressure, vacuum or differential pressure.   
電路(開關(guān))
選項
(For Electrical
Codes see Chart
Below)
  
 
2 
 SPST mercury switch, elect. code K†, opens on vacuum, pressure or differential pressure increaseULFMCSA
  
 
2P
 SPST mercury switch, elect. code L†, opens on vacuum, pressure or differential pressure increaseULFMCSA
  
 
3
 SPST mercury switch, elect. code K†, closes on vacuum, pressure or differential pressure increaseULFMCSA
  
 
3P
 SPST mercury switch, elect. code L†, closes on vacuum, pressure or differential pressure increaseULFMCSA
  
 
153
 SPDT mercury switch, elect. code M†ULFMCSA
  
 
103
 DPST, two SPST mercury switches, elect. code L†, both close on increase, FM approved, PG, PGW only ULFMCSA
  
 
105
 DPST, two SPST mercury switches, one elect. code L†, one elect. code N, both open on decreaseULFMCSA
  
 
127
 DPST, two SPST mercury switches, elect. code L†, both open on increaseULFMCSA
  
 
129
 DPST, two SPST mercury switches, one elect. code L†, one elect. code N, both open on increase ULFMCSA
  
 
158
 SPDT, two SPST mercury switches, one elect. code L† - opens on increase, one elect. code N - closes on increaseULFMCSA
  
 
161
 SPDT, two SPST mercury switches, one elect. code L† - opens on decrease, one elect. code N - closes on decreaseULFMCSA
  
 
156
 SPDT, two SPST mercury switches, elect. code L†, one- opens on increase, one closes on increaseULFMCSA
  
 
804
 DPDT, two SPDT mercury switches, elect. code M†   
  
 
(__)
 Other circuits available, consult factory   
  
7000
153
 SPDT, snap acting switch, rated 15A at 120 VAC, 8A at 240 VAC, 0.5A at 120 VDC, .25A at 240 VDC (1)   
   
153HS
 SPDT, Hermetically sealed snap switch, rated 5A at 125/250 VAC, 5A resistive at 30 VDCUL  
   
153HG
 SPDT, Hermetically sealed gold contact snap switch, rated 1A at 125 VAC, 1A resistive at 30 VDCUL  
  
7200
804
 DPDT, two SPDT snap acting switches, rated 5A at 120/240 VAC, 30 VDC resistive (1)   

可調(diào)壓差范圍

    
P1
Adjustable range 1.0-30" w.c. (25-760 bar), maximum sustained pressure 2 psig* (0.14 bar)ULFMCSA
    
P2
Adjustable range 0.5-5 psig (.03-.35 bar), maximum sustained pressure 10 psig* (0.69 bar)ULFMCSA
*Maximum sustained pressure 15 psig (1.0), maximum surge limit 20 psig (1.4), both ranges when used as single pressure switch with low pressure port vented to atmosphere.
1  7000-153 and 7200-804 not available with PR or PRL manual reset.
 †See Electrical Rating Chart Below.

CODE
RATING AC or DC
K
6A at 120 V, 3A at 240 V
L
10A at 120 V, 5 A at 240 V
M
4A at 120 V, 2A at 240 V
N
1A at 120 V, 0.5A at 240 V

關(guān)鍵詞：差壓開關(guān)

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