Flat Face Hydraulic Quick Couplings

• Connection: Female
• Flexible or Rigid: Rigid
• Material: Carbon Steel
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: QKPT-SF
• Standard: Standard
• Materials: Carbon Steel
• Model: Qkpt-Sf
• Transport Package: PP Pag+Box+Carton
• Trademark: SMT
• Origin: China
• Production Capacity: 1000000
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 0.800kg

Product Description

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.

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	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

About our company:  
NINGBO HI-TECH SMART MACHINERY CO LTD was established in 2013, is a high tech company specialized in pneumatic components and microduct accessories manufacturing. After years' hard working, it has owned 2 factories now, and the products include pneumatic vibrators, air cylinders, solenoid valves, air treatment units, pneumatic fittings&mufflers, microduct connectors and other accessories. We have sold our goods to more than 60 countries, and that number is still increasing.
Our Services & Strength
1. We have more than 10 years experience on pneumatic products;
2. Excellent quality control has always been the goal of our practice;
3. You can purchase most of the pneumatic products here;
4. Sample orders and orders with a small number of products are acceptable;
5. OEM, ODM is ok for us. Not only the label and packaging, but also the personalized customization of the product itself;
6. Any requirements, just feel free to let us know.