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Quick Connect

Quick-connects are mechanical devices designed to swiftly connect and disconnect fluid systems without the need for tools. They ensure sustained sealing for pipelines and provide an optimal solution for quick coupling of hoses in piping systems. FITOK offers multiple series of quick-connects tailored to various applications, with options for body and stem materials.

quick connect

Quick-connects are mechanical devices which rapidly join and separate fluid system components without the use of tools with benefits:

  • Easy to use
  • Minimum equipment downtime
  • No tools required to make or break a connection
  • No possibility of cross threading, galling, under-tightening, or over-tightening
  • Single-end shutoff (SENSO)-These quick-connects offer a shut off valve in the body with no shutoff in the stem. The body valve automatically shuts off when the stem is removed.
  • Double-end shutoff (DESO)-These quick-connects are the same as the SESO, but they have a small poppet valve in the stem as well. Thus, when the stem is removed from the body, pressure is shut off automatically at both ends.

This feature minimizes : SPILLAGE-The amount of system fluid that escapes when a quick-connect is uncoupled.

Quick Connect

AIR INCLUSION–The amount of air trapped between’ the body and stem valves that enters the system when is coupled.

A typical quick-connect assembly consists of a male stem and a female body. The male stem is inserted into or against the female body. A locking mechanism then locks the component halves together.
Typically, an O-ring or elastomer is employed to create a seal to atmosphere.

QC General Series Quick Connect

QC Series General Service Quick Connects feature a push-to-connect coupling for quick and easy operation. Available in single-end shutoff, double-end shutoff, and full-flow models, they support working pressures up to 3000 psig (207 bar). Constructed from stainless steel or brass, they include a reliable, leak-tight O-ring seal for vacuum or pressure applications. These quick-connects are interchangeable with other key manufacturers’ products and feature a locking mechanism with a large contact area, ensuring secure stem retention. Stem protectors, body protectors, and keyed options are offered.

Features

  • Working pressure up to: 3000 psig (207 bar)
  • Materials: Stainless steel or brass
  • Reliable, leak-tight O-ring seal for vacuum or pressure systems
  • Interchangeable with other key manufacturers’ products
  • Single-end shutoff, double-end shutoff and full-flow model available
  • Push to connect coupling to enable quick and easy operation
  • Stem protector, body protector and keyed options available
  • Locking mechanism with large contact area to ensure reliable stem retainment.
  • Many application with connected to Hoses
  • Color-coded, positive mechanical lockout devices or keys prevent intermixing of keyed stems into an unlike color-coded keyed body. No connection can be made between unlike stems and bodies. Thus unwanted fluid mixing cannot occur.

QF Series Full Flow Quick-connect

QF Series Full Flow Quick-Connects provide smooth, open bores with no valves on either end, enabling full-flow capacity to minimize pressure drop, allow easy cleaning, and facilitate quick operation. Constructed from stainless steel or brass, these quick-connects allow easy O-ring replacement without body disassembly. They support working pressures up to 6000 psig (414 bar) and are well-suited for transfer and discharge lines.

Features 

  • Working pressure up to: 6000 psig (414 bar)
  • Materials: stainless steel or brass
  • Full flow Type
  • Working pressure up to: 6000 psig (414 bar)
  • Smooth and open holes without valves at both ends to minimize pressure drop and make cleaning easier
  • These quick connects have no valve and offer high capacity, straight through flow with no restrictions. They are commonly used on transfer lines or drain and vent systems. They can be used with flexible or rigid tube, pipe or hose

QTM Series Quick-connect

QTM Series PTFE-Sealed Quick-Connects feature are specially designed to minimize air inclusion and spillage, with a working pressure of up to 4500 psig (310 bar).Keyed quick-connects feature a foolproof mechanical design to prevent accidental mixing of different working lines in real-world applications. The PTFE sealing provides excellent chemical compatibility, making them suitable for a wide range of media. QTM Series quick-connects are available in keys K1 through K8, with color-coded and numbered stems and bodies for easy identification. The push-to-connect design allows for quick and effortless operation, while the locking dog mechanism with a large contact area securely retains the stem.

Features

  • Working pressure up to: 4500 psig (310 bar)
  • Category high pressure Quick Connect
  • Special design to reduce air inclusion and spillage
  • PTFE sealing to enable applications for diverse media types
  • Push to connect design to enable easy operation
  • Locking mechanism with large contact area to ensure reliable stem retainment
  • Single end shutoff and double end shutoff models are available with the keyed option
  • The QTM series has several unique features which make it ideal for use on many fluids which would degrade elastomeric O-ring materials.

QV High Flow Quick-connect

QV Series Double-End Shutoff, High Flow Quick-Connects are designed for high flow applications with working pressures up to 2000 psig (137 bar). Their large flow area ensures high flow capacity, while the positive valve stop maintains valve alignment and provides a metal-to-metal valve stop, ensuring full valve opening. Hardened nipples and sleeves, along with solid barstock construction, enhance resistance to hydraulic and mechanical shock. A durable ball-locking mechanism ensures secure connections. These quick-connects are primarily used in hydraulic systems.

Features

  • Working pressure up to: 2000 psig (137 bar)
  • Large flow area to ensure high flow capacity
  • Positive valve stop to maintain valve alignment and to provide metal to metal sealing valve stop to ensure that the valves are fully open
  • Hardened nipples and sleeves as well as solid bar stock construction to make for a quality coupling, as a result maximum resistance to damage from hydraulic and mechanical shock
  • Designed to withstand high pressure with reliable sealing
  • Durable ball-locking mechanism to assure reliable connection

QP Series Quick-Connects

QP Series Flat Face Quick-Connects enable quick coupling and uncoupling between components in cooling circulation systems, while minimizing air inclusion and fluid spillage. Featuring a compact design and high flow capacity, they meet the rapid circulation requirements of refrigerants and ensure optimal sealing and cooling efficiency. Compatible with various fluids such as water-glycol, heat transfer oil, and cooling water, they are widely used in electronics, photovoltaic, and information technology cooling systems.

Features

  • Flat head design to reduce air inclusion or spillage during coupling or uncoupling
  • Ball locking design to ensure firm connection and availability for impact and vibrant occasions
  • Unique internal structure design to realize maximum flow capacity
  • Aluminum alloy and stainless steel with specially treated surface optional to provide excellent corrosion resistance
  • Pressure relief valves optional for stems to avoid excessively high circuit pressure and protect the pipeline
  • A variety of sealing ring materials optional to offer good compatibility with most fluids and extensive temperature coverage

QCA Series Quick-connect

QCA Series Safe Pressure Release Quick Connects are designed for high flow compressed air circuits. Pressure release prior to disconnection eliminates the risk of dangerous hose whipping. Large orifice along with full bore design maximizes air flow and contributes to greater tools efficiency. Benefiting from unique internal structure and high quality materials, the quick-connects deliver reliable sealing performance and save the system from unnecessary energy losses and economic losses caused by leakage.

Features

  • Working pressure up to: 232 psig (16 bar)
  • Safe operation without accidental disconnection risk
  • Safe pressure release design to avoid hose whipping after disconnection
  • Large flow path ensures direct air flow to pressure loss ,Improved gas use efficiency for a variety of pneumatic devices

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