METAL HOSE & BELLOWS - Formely Hydraquip Metal Hose
PLUMBING & COOLING - Formely Hydraquip Braided Hose

Double Shut OFF Quick Release Couplings for Water Applications in OEM and Building Services

MATERIALS OF CONSTRUCTION

Body

Nickel Plated DZR Brass

Sleeve

Nickel Plated DZR Brass

Valve

Brass

Springs

Stainless Steel

Balls

Stainless Steel

Seals

EPDM

DESCRIPTION

The Hydraflex coupler and plug are manufactured from DZR Brass to provide a superior resistance to premature failure associated with stress corrosion, cracking and dezincification with nickel plating on all external parts. EPDM seals provide a good resistance to temperature and chemicals that are generally used in H&V systems with stainless steel balls and springs securing the leak free connections. Both the plug and the coupling are fitted with the shut off valve which allow disconnection and connection under normal system operating pressures thus removing the need to “shut down” a system.
A design feature of the HQ18 and HQ19 Series quick release couplings mean that is minimal spillage on connection and disconnection which is assisted by a secondary seal to prevent leakage or spurting during this operation. The internal design of the value is such that performance us guaranteed with a high flow rate and minimal pressure drop ensuring systems are able to perform at maximum efficiency.

APPLICATIONS & ADVANTAGES

  • Proven design that has been used for over 30 years in the building service industry
  •  Used for Chilled Ceilings and Fan Coil Units
  • Disconnection with minimal disruption and leakage
  • Perfect for servicing, maintenance and fitting replacement units

TECHNICAL

  • Max Working Temperature: 35 Bar
  • Temperature Range: -20°C to +100°C

TECHNICAL DATA

FLOW DIAGRAMS

Series HQ18 Nominal Width – 9.5mm


 

Series HQ19 Nominal Width – 12.4mm

 

INSTALLATION

Ensure when assembling either the coupler or plug (female thread) onto a male thread that care is taken not to over tighten. Torque settings will vary on different manufactures thread tolerances (on the part to be connected to) and should be treated accordingly. The use of sealing tape or hemp will increase the size of ta tapered (male) thread and could lead to a stress fracture on the quick release coupling/plug if over tightened, so this form of sealing is not approved. The use of Loctite 542 thread sealant is the approved product, following manufacturer’s instructions and should then be hand tightened followed by a maximum quarter turn with a correct size spanner to finalise the seal. Do not use an adjustable spanner or wrench. Parallel threads should be sealed using a sealing washer or sealing ring.

Technical Info


11 Stirling Park, Laker Road,
Rochester
ME1 3QR, United Kingdom

+44 (0)845 260 4334
[email protected]

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