Process Connections - WIKA MH-4 Manual De Instrucciones

9. Specifications

Process connections

Standard
EN
ISO 1179-2
(formerly
DIN 3852-E)
ISO 9974-2
(formerly
DIN 3852-E)
ISO 6149-2
JIS B2351-1
SAE J514
ANSI/ASME
B1.20.1
KS
ISO 7
EN 837
Details must be tested separately in the respective application. The specified values for the max. nominal
pressure serve only as a coarse orientation. The values depend on the temperature, the seals used, the selected
torque, the type and the material of the mating thread and the prevailing operating conditions.
18
Thread size Max. nominal
pressure
G ¼ A 600 bar [8,700 psi]
M14 x 1.5 600 bar [8,700 psi]
M14 x 1.5 600 bar [8,700 psi]
G ¼ x 10, form O 600 bar [8,700 psi]
with collar
G ⅜, form O with 600 bar [8,700 psi]
collar
7/16-20 UNF-2A, 600 bar [8,700 psi]
O-ring BOSS
9/16-18 UNF-2A, 600 bar [8,700 psi]
O-ring BOSS
3/4-16 UNF-2A, 600 bar [8,700 psi]
O-ring BOSS
7/16-20 UNF-2A, 800 bar [11,600 psi]
sealing cone 74°
⅛ NPT 400 bar [5,800 psi]
¼ NPT 1,000 bar [14,500 psi]
PT ¼ 1,000 bar [14,500 psi]
PT ⅜ 1,000 bar [14,500 psi]
R ¼ 1,000 bar [14,500 psi]
R ⅜ 1,000 bar [14,500 psi]
G ⅛ B 400 bar [5,800 psi]
G ¼ B 1,000 bar [14,500 psi]
G ⅜ B 1,000 bar [14,500 psi]
WIKA operating instructions pressure sensor, model MH-4
Sealing and temperature
range
Standard Option
NBR FPM/FKM
-40 ... +100 °C -20 ... +125 °C
[-40 ... +212 °F] [-4 ... +257 °F]
NBR FPM/FKM
-40 ... +100 °C -20 ... +125 °C
[-40 ... +212 °F] [-4 ... +257 °F]
- -
Copper Stainless steel
-40 ... +125 °C -40 ... +125 °C
[-40 ... +257 °F] [-40 ... +257 °F]