美國Dwyer H3系列 氣液兩用防爆壓差開關
產(chǎn)品型號: H3
設定點范圍2.5KPa-13.8Bar, 耐壓到103Bar
用途:防爆設計,適用于工業(yè)精密測控
可調壓差范圍:2.44-44.78KPa,3.44-103KPa,34.4-482KPa,68.9-1379KPa
死區(qū):可調范圍的5%
壓力腔材質:鋁,銅或不銹鋼可選
連接:1/8"NPT
zui大耐壓:1500PSIG
zui大溫度:
輸出:SPDT/DPDT可選
重量:
尺寸:76.2X
選型表:
型號 | 壓力腔材質 | 膜盒材質(Wetted) | 可調范圍 | 開關(Switch) |
H | Aluminum | Nitrile | 10-180" w.c. (2.48-44.78 kPa) | SPDT Snap Action Switch, Rated |
H | Aluminum | Nitrile | 0.5-15 psid (0.3-1 bar) | SPDT Snap Action Switch, Rated |
H | Aluminum | Nitrile | 5-70 psid (.34-4.8 bar) | SPDT Snap Action Switch, Rated |
H3S-1SL | 316 SS | Viton® | 10-180" w.c. (2.48-44.78 kPa) | SPDT Snap Action Switch, Rated |
H3S-2SL | 316 SS | Viton® | 0.5-15 psid (0.3-1 bar) | SPDT Snap Action Switch, Rated |
H3S-3SL | 316 SS | Viton® | 5-70 psid (.34-4.8 bar) | SPDT Snap Action Switch, Rated |
舉例 | H3 | S | 2 | S | C | MV | H3S-2SC-MV Differential Pressure Control; 316SS pressure chamber and Viton® diaphragm, weatherproof and ATEX, SPDT snap action switch with gold contacts; fixed deadband; automatic reset; adjustable range 0.5-15 psid. |
結構 | H3 | | | | | | Series designator, weatherproof and explosion-proof |
壓力腔& 膜盒材質(Wetted) | | A | | | | | Aluminum chamber with Nitrile diaphragm |
S | 316SS chamber with Viton® diaphragm | ||||||
可調范圍 | | | 1 | | | | Adjustable range 10-180" w.c. (2.48-44.78 kPa) |
2 | Adjustable range 0.5-15 psid (0.03-1 bar) | ||||||
3 | Adjustable range 5-70 psid (.34-4.8 bar) | ||||||
4 | Adjustable range 10-200 psid (.7-13.8 bar) | ||||||
開關(Switch) | | | | S | | | SPDT snap action switch rated |
D | DPDT snap action switch rated | ||||||
電氣連接 | | | | | L | | 18 AWG x 18 inch lead wires |
T | UL, CSA approved internal terminal block | ||||||
C | ATEX approved internal terminal block | ||||||
可選項 | | | | | | DRAIN | Housing with drain - allows condensate to be drained from inside enclosure (meets NEMA 3 instead of 4X) |
MV | Gold contacts on snap switch for dry circuits rated | ||||||
VIT | Viton® diaphragm option where not standard |