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Ningbo Puremix Machinery Parts Co Ltd
Add:301 Dongfangyuanyage Building, No 6 Liuzhuang xiang, Haishu District, Ningbo, Zhejiang, China
Contact:Penny
M.T.:13566020158
Tel:0086+574 87071879
Fax:0086+574 87071879

Hydraulic quick coupling QKPT
Hydraulic quick coupling  » QKPT

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QKPT

Hydraulic quick coupling



Features





1. Sleeve locking mechanism is engaged by rotating sleeve after connection.It prevents accidental disconnection when,the coupling is dragged along the ground.
2. Sleeve mechanism is designed to help prevent dirt from entering the intermal mechanism and thus causing faulty operation when connecting or disconnecting.the sleeve covers the retaining ring and also in corporates a dust seal in the spring.
3. Steel construction,Zinc plated with yellow chromate finish.Hardened nipples and sleeves and solid barstock construction for maximum resistance to damage from hydraulic and mechanical shock.
4. This Anti-Blowout Nitrile/PTFE bonded seal is designed to prevent blow-out or damage during severe service conditions.
5. Durable ball-locking mechanism assures reliable connections, every time. A large number of locking balls distributes the work load evenly while providing alignment and swiveling action to reduce hose torque and prolong hose life.CAUTION:These products are not to be used as swivels.Rotation under pressure will result in excessive and premature wear.
6. This series couplings employ flush valving when connecting or that only small amounts of fluid can be lost during disconnection or air inclusion during reconnection.
7. This series conforms to standard of ISO16028.




Applications





This Series couplings are widely used in the public utility market where hydraulic oil spillage can constitute a serious safety hazard,particularly in overhead bucket hoists that are used for maintenance of high-voltage power transmission lines,These couplings are also used for quick change of hydraulic tools in construction,railway maintenance and mining industries,the ease of cleaning makes them ideal for use in these types of hostile environments.

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Hydraulic quick coupling Details

 

Flat Face Hydraulic Quick Couplings(Steel)
Specifications
Body size (in)
1/4 3/8 1/2 3/4 1
Rated Pressure (Bar)
300 250 200 200 200
Material: Carbon steel
Standard seal material: NBR (other material is available on request)
Temperature Range (Std seals): -20°C to +80°C 
Part No. Thread Size BSPP Body size A Overall Length (mm.) B Exposed Length (mm.) C
Hex
Size
(mm.)
D
Largest Diameter (mm.)
Part No. Thread Size NPT Body size A Overall Length (in.) B Exposed Length (in.) C
Hex
Size
(in.)
D
Largest Diameter (in.)
QKPT 02-02PF G1/4 1/4 48.0 35.0 22.0 24.0 QKPT 02-N02PF NPT1/4 1/4 1.88 1.37 0.86 0.94
QKPT 03-03PF G3/8 3/8 60.0 43.0 24.0 26.0 QKPT 03-N03PF NPT3/8 3/8 2.36 1.69 0.94 1.02
QKPT 03-04PF G1/2 3/8 63.0 46.0 27.0 29.0 QKPT 03-N04PF NPT1/2 3/8 2.48 1.81 1.06 1.14
QKPT 04-04PF G1/2 1/2 70.0 53.0 32.0 35.0 QKPT 04-N04PF NPT1/2 1/2 2.77 2.08 1.25 1.37
QKPT 04-06PF G3/4 1/2 70.0 53.0 32.0 35.0 QKPT 04-N06PF NPT3/4 1/2 2.77 2.08 1.25 1.37
QKPT 06-06PF G3/4 3/4 70.0 53.0 36.0 38.0 QKPT 06-N06PF NPT3/4 3/4 2.77 2.08 1.41 1.51
QKPT 08-08PF G1 1 83.0 59.0 45.0 48.0 QKPT 08-N08PF NPT1 1 3.26 2.32 1.77 1.88
Part No. Thread Size BSPP Body size E
Overall Length (mm.)
F
Hex
Size
(mm.)
G
Largest Diameter (mm.)
Part No. Thread Size NPT Body size E
Overall Length (in.)
F
Hex
Size
(in.)
G
Largest Diameter (in.)
QKPT 02-02SF G1/4 1/4 48.0 24.0. 28.0 QKPT 02-N02SF NPT1/4 1/4 1.88 0.94 1.10
QKPT 03-03SF G3/8 3/8 65.0 27.0 32.0 QKPT 03-N03SF NPT3/8 3/8 2.55 1.06 1.25
QKPT 03-04SF G1/2 3/8 70.0 27.0 32.0 QKPT 03-N04SF NPT1/2 3/8 2.75 1.06 1.25
QKPT 04-04SF G1/2 1/2 79.0 36.0 40.0 QKPT 04-N04SF NPT1/2 1/2 3.11 1.41 1.57
QKPT 04-06SF G3/4 1/2 79.0 36.0 40.0 QKPT 04-N06SF NPT3/4 1/2 3.11 1.41 1.57
QKPT 06-06SF G3/4 3/4 79.0 36.0 41.0 QKPT 06-N06SF NPT3/4 3/4 3.11 1.41 1.63
QKPT 08-08SF G1 1 93.0 45.0 48.0 QKPT 08-N08SF NPT1 1 3.66 1.77 1.88
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