297 SERIES

297 SERIES
Product Details

297 SERIES,

FLAT FACE COUPLING (CARBON STEEL), ISO-16028 STANDARD, CONNECT UNDER PRESSURE FEMALE, COUPLER, THREADED COUPLING


    


Art. No.Body SizeEHsHqLsT
HHFSFC29738-3/8"NPT3/8"41.83038703/8"NPT
HHFSFC9738-3/8"BSP3/8"41.83038703/8"BSPP
HHFSFC29738-1/2"NPT3/8"41.8303871.51/2"NPT
HHFSFC29738-1/2"BSP3/8"41.8303871.51/2"BSPP
HHFSFC29712-1/2"NPT1/2"49.83646781/2"NPT
HHFSFC29712-1/2"BSP1/2"49.83646781/2"BSPP
HHFSFC29712-3/4"NPT1/2"49.83646853/4"NPT
HHFSFC29712-3/4"BSP1/2"49.83646853/4"BSPP
HHFSFC29712-1-1/16"UNF1/2"49.83646851-1/16"UNF-12
HHFSFC29758-3/4"NPT5/8"53.84150855/8"NPT
HHFSFC29758-1-1/16"UNF5/8"53.84150851-1/16"UNF-12
HHFSFC29734-3/4"NPT3/4"58.84655973/4"NPT
HHFSFC29734-3/4"BSP3/4"58.84655973/4"BSPP
HHFSFC29734-1"NPT3/4"58.84655991"NPT
HHFSFC29734-1"BSP3/4"58.84655991"BSPP
HHFSFC29734-1-1/16"UNF3/4"58.84655991-1/16"UNF-12
HHFSFC29734-G3/4" JIS ORB3/4"58.8465599G3/4" JIS ORB
HHFSFC29710-1"NPT1"7055651051"NPT
HHFSFC29710-1"BSP1"7055651051"BSPP
HHFSFC29710-1-1/4"NPT1"7055651061-1/4"NPT
HHFSFC29710-1-1/4"BSP1"7055651061-1/4"BSPP
HHFSFC29710-1-5/16"UNF1"7055651051-5/16"UNF-12
HHFSFC29710-G1" JIS ORB1"705565106G1" JIS ORB
HHFSFC297112-1-1/4"BSP1-1/2"926585133.51-1/4"BSPP
HHFSFC297112-1-1/4"NPT1-1/2"926585133.51-1/4"NPT
HHFSFC297112-1-1/2"NPT1-1/2"926585133.51-1/2"NPT
HHFSFC297112-1-1/2"BSP1-1/2"926585133.51-1/2"BSPP
HHFSFC297112-1-5/8"UNF1-1/2"926585133.51-5/8"UNF-12
HHFSFC297112-1-7/8"UNF1-1/2"926585133.51-7/8"UNF-12
HHFSFC297112-G1-1/2" JIS ORB1-1/2"926585133.5G1-1/2" JIS ORB


● APPLICATIONS:

297 series is the ultimate solution and most popular for hydraulic circuit applications subject to high pressure impulses, and circuits which experience high residual or trapped pressure in a line. Thread-to-connect design eliminates premature wear or brinelling associated with locking ball designs subjected to high impulse pressures.

The internal valve allows connection and disconnection with high residual pressures. Flat face design avoids loss of hydraulic fluid during connection/ disconnection.

Flat face design is easly to clean, limiting contamination into the circuit.

- High working pressures: 40-60 MPa/5800-8700 psi range based on size.

- Thread coupling system eliminates brinelling, premature leakage.

- Connect/disconnect under residual pressure up to 25 MPa/3625 psi.

- Valve limits fluid movement during connection avoiding damage to other elements of circuit.

- Low connection force required.

- Excavators w/auxiliary line for attachments: thumbs, grapples, hammers, and compactors/hopaks.

- Oil Field, well head drives, porta-power.

- Cranes, drilling machines, all large equipment needing junction points in circuit.

- All construction equipment applications with higher pressure

requirements or issues of connecting/ disconnecting tool attachments under residual pressure.

- Eliminates brinelling, reduces leakage.

- Save time changing tools.


● INTERCHANGE

STUCCHI VEP SERIES, PARKER FET SERIES,

FASTER FHV SERIES,DNP PST4 SERIES,

VOSWINKEL FT SERIES,DIXON VEP SERIES,

HOLMBURY HFT SERIES,


● THREADS

Threads:ISO1179-1,ANSI B1.20.1,ISO11926-1& SAE J1926-1
SAE J1453 or ISO8343-3


● PERFORMANCE





● TEMPERATURE RANGE

-20oC+100oC/-4oF+212oF

With standard seals: Buna-N(Nitrile)

-20oC+200oC/-4oF+392oF

With standard seals: Viton

On request seals: Viton, Neoprene, EPDM or other seals.


SizeMax.residual pressure during connectionMax.residual pressure
Male,female to drainFemale,male to drainMale and female during disconnection
InchMpapsiMpapsiMpapsiMpapsi
1/4304350304350253625253625
3/8253625253625253625253625
1/2253625253625202900202900
5/8253625253625202900202900
3/4253625253625152175152175
1253625253625152175152175
1-1/225362525362557255725


SizeMax.operating pressureBurst pressure
CoupledMaleFeMaleCoupledMaleFeMale
InchMpapsiMpapsiMpapsiMpapsiMpapsiMpapsi
1/4608700608700426090150217501502175012618270
3/8557975557975334785140203001402030010014500
1/2557975557975334785140203001402030010014500
5/8557975557975334785140203001402030010014550
3/4507250507250334785125181251251812510014500
147681547681530435012017400120174008011600
1-1/240580040580030435011015950110159508011600


● MATERIAL

Coupler Body :STEEL, TRIVALENT PLATED

Springs :C98

Balls :GCr15

Seals :Buna-N(Nitrile)

Back-Up Ring :PTFE

Surface treatment :1)QPQ finish,then Zinc plating and Cr 3+
 2)Zinc Nickel plating1200 hours with no red rust in salt spray tests


● ATTENTION:

Only coupler and nipple with the same thread fit together. Threads: BSP, NPT, SAE, ORFS, JIC.


Among those professional 297 series manufacturers and suppliers in China, Ningbo E.H Hydraulic Co.,Ltd is waiting for you to purchase its products made in China in stock.
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