Extremely
rugged construction
provides excellent
reliability in chemical, petroleum and industrial plants.
Bellville spring movement permits mounting of control in
any position and helps prevent contact chatter. new design
also provides high overpressure protection. Available with
standard weatherproof housing to meet NEMA-1 through 4X
and NEMA-13, JIC. This control is also offered with an explosion-proof
housing suitable for NEMA-7, Class I, Groups A, B, C &
D; and NEMA-9 Class II, Groups E, F & G. Diaphragm elements
are provided in a choice of polyamide, 316 stainless steel
or FEP to met most liquid or gas applications. Bottom pressure
ports are aluminum or 316 stainless steel. Switching arrangements
are single pole double throw (SPDT) rated up to 15 amps
125/250 VAC or double pole double throw (DPDT) rated up
to 5 amps 125/250 VAC, 30 VDC resistive. Setpoint adjustments
are easily made by use of a large internal thumb wheel isolated
from the electrical chamber for added safety.
APPLICATIONS
Chemical, petroleum, food and drug processing industries.
Used indoor, outdoor or in explosion-proof areas. Machine
tools, high vibration locations.
SPECIFICATIONS
Wetted Materials: See pressure chamber and diaphragm
material in model chart on "Ordering" page.
Temperature Limits: -30 to 170°F (-35 to 77°C).
Pressure Limit: 3000 psig (206.8 bar).
Enclosure Rating: See model chart on "Ordering" page.
Switch Type: SPDT snap switch. DPDT or hermetically
sealed optional.
Electrical Rating: See model chart on "Ordering"
page.
Electrical Connections: Explosion-proof models (E,
EH): 18 AWG, 18" (460 mm) long; Weatherproof models (W):
screw type.
Conduit Connection: Explosion-proof models (E, EH):
1/2" male NPT; Weatherproof (W): 3/4" female NPT.
Process Connection: 1/4" female NPT.
Mounting Orientation: Any position.
Set Point Adjustment: Internal thumbwheel.
Weight: 3 lb (1.4 kg).
Deadband: See Switch Deadband chart below.
Agency Approvals: CE, UL.
SWITCH
DEADBAND CHART
| RANGE
ORDERING
NUMBER |
ADJUSTABLE
OPERATING
RANGE |
MAX.
SYSTEM PRESSURE
WITHOUT BURSTING |
APPROXIMATE
FIXED
DEADBAND - MID RANGE |
| E TYPE |
W TYPE |
| psig |
bar |
psig |
bar |
psi |
bar |
psig |
par |
| 3 |
5-40 |
.48-2.8 |
3000 |
206.8 |
2.5 |
.17 |
2 |
.14 |
| 4 |
10-70 |
.69-4.8 |
3000 |
206.8 |
5 |
.34 |
4 |
.28 |
| 5 |
25-200 |
1.7-13.8 |
3000 |
206.8 |
10 |
.69 |
8 |
.55 |
| 6 |
50-350 |
3.5-24.1 |
3000 |
206.8 |
18 |
1.20 |
15 |
1.00 |
| 7 |
75-550 |
5.2-37.9 |
3000 |
206.8 |
36 |
2.50 |
30 |
2.1 |
| 8 |
100-900 |
6.9-62.1 |
3000 |
206.8 |
60 |
4.10 |
50 |
3.5 |
| 9 |
200-1400 |
13.8-96.5 |
3000 |
206.8 |
90 |
6.20 |
75 |
5.2 |
|
