Fluid Power Services 2026-2027

Smartflow 4” Dry Break Couplings – 640 Series

Description The Smartflow largest standard size dry break coupling is a 4” or 164 mm coupling. These are commonly used in offshore oil and gas or marine bunkering applications where high flow rates and pressures are required. Both the stainless steel and aluminium versions of this product are rated at 25 bar max operating pressure, with the aluminium version weighing only 9 kg. The hose units at this size come with either two handles or a wheel.

Features • 25 bar max working pressure • Very simple maintenance and service procedure • Full traceability, certificate of conformity and 3.1 Material certificates provided • Team spec: interchangeable with other manufacturers • Selectivity / key options • Variety of materials and configurations available • Laser engraved badges Specifications Max. working pressure 25 bar Temperature range -20°C to +60°C Nominal flow diameter 164 mm (DN100) Max. flow (kerosene 20°C) 3360 l/pm Material Aluminium or stainless steel – see below Seal material FKM

Three

Hose Unit – Aluminium

Tank Unit – Aluminium

New

New

640 Series BSPP Female Part Number

640 Series BSPP Female – Valved Part Number

0330

0330

Thread

Thread

C106400001

4”

C106405001

4”

NPT Female

NPT Female

C106400002

4”

C106405002

4”

Hose Unit – Stainless Steel

Tank Unit – Stainless Steel

New

New

640 Series BSPP Female Part Number

640 Series BSPP Female – Valved Part Number

0330

0330

Thread

Thread

C106400003

4”

C106405005

4”

NPT Female

NPT Female

C106400004

4”

C106405006

4”

3.53