Gold Member Since 2015
Audited Supplier
Ningbo Big Tree International Trade Co., Ltd.

Quick Release Coupler, Quick Release Coupling, Quick Connector manufacturer / supplier in China, offering Pneumatic Coupling Ball Sealing Type Quick Release Coupler, High Quality Pneumatic Plastic Air Fitting/Push in Fitting, Brass Female Flare Connector/Fitting and so on.

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Pneumatic Coupling Ball Sealing Type Quick Release Coupler

Purchase Qty.:
50-499 500+
FOB Unit Price: US $2.9 US $2.75
Purchase Qty. (Pieces) FOB Unit Price
50-499 US $2.9
500+ US $2.75
Get Latest Price
Production Capacity: 2000PCS/Month
Transport Package: PP Bag
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: S4
  • Structure: Universal
  • Material: Carbon Steel
  • Thread Size: 1/4"~1"
  • Specification: 1/4-1 inches
  • HS Code: 8481804090
  • Connection: Locking Balls
  • Flexible or Rigid: Rigid
  • Standard: Standard
  • Trademark: BIG TREE
  • Origin: Ningbo, China
Product Description
1, Interchangeable with 
2, 12 years experience of hydraulic quick coupling.
3, 1 year's guarantee.
4, 10% lower.
5, To make sure, click us.


Applications: The S4 series quick couplings are normally used on AGRICULTURAL implements and applications, the possible panel mounting allows to easily connect and disconnect plug and coupler with pull or push only. This quick couplers are available with both poppet and ball valve.

1. Comply to ISO5675 standard

2. Coupler and nipple are precision machined from steel solid bar and wear points hardened for resistance to damage by hydraulic surges and crash

3. Chromium alloy ball valve designed for heavy duty hydraulic applications

4. Proven ball locking mechanism with large numbers of hardened steel locking balls distribute the load evenly to resist wear and provide positive connection, the ball locking mechanism also provides accurate alignment and allows a swiveling action to reduce hose torque

5. Wide range of body size available from DN2.3 to DN25

6. Interchangeable with PARKER 4000, FASTER NS, SAFEWAY S20

Pneumatic Coupling Ball Sealing Type Quick Release Coupler
PART NO.ISO Thread L L1 L2 D1 D2 Ch1 Ch2
 S4-02 6.3 1/4 72 53.5 36 27.5 14.2 19 19
 S4-03 10 3/8 82.5 63 40 34 19 24 24
 S4-04 12.5 1/2 87.5 66 43.5 39 20.5 27 27
 S4-06 20 3/4 107 82.5 53.5 4827.9  34 34
 S4-08 25 1 126 96.5 63 56 31.3 41 41

Why choose us? 

(1) Quality, we only produce top-level quality products, we promise that all of our product's raw material are first class, and good quality system controls, so our goods' quality is very good. 

(2) Price, our policy is that "Win-to-Win". That means in view of our long-standing business relationships, we only take small profit to help you for the marketing. 

(3) Delivery, we alway have some products in stock, so we can complete the delivery within the time stipulated before. 

(4) No MOQ, I think it is an attractive condition to some of you who have no big demands for each items temporarily.

Pneumatic Coupling Ball Sealing Type Quick Release Coupler
Pneumatic Coupling Ball Sealing Type Quick Release Coupler
If you are interested in our products or company, or if you have some questions about my product, please don't hesitate to contact with me, any suggestion about our company or our product is appreciated.
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