STAINLESS STEEL FLAT FACE – MQS-F SS

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

6 1/4 4 35 5,075 32 4,640 13 3.4 120 27.000 0.005 0.0003 200 29,000 130 18,850 220 31,900.000 Allowed up to 6 MPa
10 3/8 6 35 5,075 32 4,640 46 12.2 130 29.200 0.007 0.0004 180 26,100 130 18,850 170 24,650.000 Allowed up to 6 MPa
12 1/2 8 35 5,075 25 3,625 82 21.7 150 33.700 0.008 0.0005 100 14,500 100 14,500 140 20,300.000 Allowed up to 4 MPa
16 5/8 10 35 5,075 25 3,625 98 25.9 160 36.000 0.008 0.0005 100 14,500 100 14,500 140 20,300.000 Allowed up to 3 MPa
19 3/4 12 35 5,075 22 3,190 150 39.6 210 47.200 0.009 0.0005 90 13,050 100 14,500 140 20,300.000 Allowed up to 2 MPa
25 1 16 35 5,075 21 3,045 186 49.1 210 47.200 0.020 0.0012 110 15,950 85 12,325 140 20,300.000 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

• Flat mating surfaces easily wiped clean to prevent contamination and spillage during connection/disconnection
• Connection is made by pushing the male coupling and disconnection by pulling back the sleeve of the female
• Positive, quick connection of the male into the female by the latching ball system
• Shut-off by flat valve
• Interchangeability according to ISO 16028 and HTMA standards (only for ⅜”)
• 1,000,000 cycles at 120% of rated (freq. 1Hz – connected conditions)
• FKM (VITON) seal

MATERIAL

Female and male coupling in steel, with some stressed tempered or carbonitrided areas. Springs in AISI and C98 steel, FKM (VITON) seal. Other materials (VITON, EPDM or any others) on request

WORKING TEMPERATURE

-13ºF up to +392ºF (-25ºC up to +200ºC)
For other temperatures, the coupling may be assembled with the specific seals

SAFETY FACTOR

4:1 for dynamic pressures

IMPULSE PRESSURES

100,000 cycles at 133% of the rated one (freq. 1Hz) in disconnected conditions. 1,000,000 cycles at 120% of rated one (freq. 1Hz) in connected conditions.

TEST SPECIFICATIONS

ISO 18869

Find out more with our Q.Safe Catalogue