DHI TYPE FLAT FACE – MQS-DHI-F

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

10 3/8 6 35 5,075 25 3,625 54 14.3 130 29.2 0.007 0.0004 135 19,575 125 18,125 140 20,300 Allowed up to 6 MPa
12 1/2 8 35 5,075 25 3,625 86 22.7 150 33.7 0.008 0.0005 120 17,400 110 15,950 145 21,025 Allowed up to 4 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

• Connection is made by pushing the male coupling and disconnection by pulling back the sleeve of the female
• Flat mating surfaces easily wiped clean to prevent contamination and spillage during connection/disconnection
• Stainless steel springs in the female coupling
• Interchangeability according to ISO 16028 and HTMA standards

MATERIAL

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

WORKING TEMPERATURE

-22ºF up to +230ºF (-30ºC up to +110ºC)
For other temperatures the coupling is assembled with the specified 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