FLAT FACE EXTRA HEAVY DUTY – MQS-FEH

TECHNICAL DATA

SIZE

WORKING
PRESSURE
CONNECTED
Dynamic

WORKING
PRESSURE
DISCONNECTED
Dynamic

RATED FLOW
at 0.2 MPa of
pressure drop

CONNECTION
EFFORT

OIL SPILLAGE
Connection /
Disconnection

MINIMUM BURST PRESSURE

CONNECTION
WITH FEMALE
UNDER
PRESSURE
(Male at 0 MPa)

DN

inch

Dash

MPa

PSI

MPa

PSI

l/min

US
GPM

N

lb.

cc.

cubic
inch

Male

Female

M & F

MPa

PSI

MPa

PSI

MPa

PSI

12 1/2 8 35 5,075 35 5,075 85 22.5 180 40.5 0.008 0.0005 170 24,650 150 21,750 180 26,100 Allowed up to 4 MPa
16 5/8 10 35 5,075 35 5,075 105 27.7 200 45.0 0.008 0.0005 170 24,650 150 21,750 180 26,100 Allowed up to 3 MPa
19 3/4 12 35 5,075 35 5,075 160 42.3 240 54.0 0.009 0.0005 170 24,650 140 20,300 170 24,650 Allowed up to 2 MPa
25 1 16 35 5,075 35 5,075 235 62.1 270 60.7 0.020 0.0012 160 23,200 180 26,100 170 24,650 Allowed up to 2 MPa
Connection with Male under pressure not allowed; Disconnection under pressure not allowed
The rated flow represents the normal operating condition. The maximum recommended flow rate is equal to 1.5 times the rated flow

PRODUCT DESCRIPTION

• MQS-FEH is the flat-face line for extra heavy duty and high vibration applications
• 35MPa of working pressure in connected and disconnected conditions
• Push connection (a click proves correct connection)
• Double-action disconnection process to prevent accidental disconnection – push male and pull back sleeve on female
• 1 Million impulse cycles qualified
• E-Coat 1000 plating

MATERIAL

Female & male couplings in high grade carbon steel with hardened areas in correspondence to the most stressed points. Male vs. female Sealing system in new Polyurethane compound; other seals in NBR with back-up in PTFE.

WORKING TEMPERATURE

-22ºF up to +230ºF (-30ºC up to +110ºC)

SAFETY FACTOR

4:1 for dynamic pressures

IMPULSE PRESSURES

1,000,000 cycles at 120% of the rated one (freq. 1Hz)

TEST SPECIFICATIONS

ISO 18869

Find out more with our Q.Safe Catalogue