What Is a Double Hole Tube Clamp?
A double hole tube clamp is a clamp whose body carries two parallel bores instead of one, so it can secure two tubes at the same time. Engineers reach for it whenever two lines travel the same path – a hydraulic pressure-and-return pair, two instrument lines, or a supply-and-drain set – and need to be held together neatly with a single mounting point.
Mechanically it is a standard DIN clamp: two clamping halves close around the tubes, a weld or mounting plate fixes the assembly to the structure, and a cover plate with a hex bolt pulls everything tight.
The defining feature is the twin-bore body, which clamps both tubes to full circumference and fixes the distance between them, so the lines cannot drift, touch or chafe.
A double hole clamp does three jobs at once: it supports both lines, it damps the vibration and pressure pulsation travelling through them, and it sets a permanent, repeatable spacing between the two tubes. That combination is why it is a standard fitting on dense hydraulic panels, skids and mobile machinery.
Best-Quality Two Hole, Twin, Double Clamps: Same Product, Different Names
Buyers search for this clamp under several names like two hole clamps, twin hole clamps, or double hole clamps, and they all refer to the same DIN 3015 Part 3 component. This is worth stating plainly so there is no confusion when specifying or cross-referencing.
Name used | What it refers to? |
Double hole tube clamp | Clamp with two bores in one body |
Twin tube clamp | Same clamp – “twin” is the DIN/industry term |
Double clamp / double pipe clamp | Same clamp |
DIN 3015 Part 3 | The standard that defines it |
So a two hole clamp, a twin hole clamp and a double hole clamp are one and the same product. We manufacture it to original DIN 3015 Part 3 dimensions, which means it is interchangeable with the twin/double series from STAUFF, Parker and Swagelok regardless of which name your drawing uses.
Types of Tube Clamps We Manufacture
Bullion Pipe & Tubes LLP produces every major clamp series so a single supplier can cover a complete piping or hydraulic project.
Bullion Pipe & Tubes LLP's Heavy Duty Double Hole Clamps at a Glance
Bullion Pipe & Tubes LLP manufactures the full DIN 3015 Part 3 Heavy Duty Double Hole Clamps, So one supplier covers every paired-line position on your layout.
Specification | Our Double Hole Tube Clamp |
Standard | DIN 3015 Part 3 – twin / double series |
Configuration | Two parallel bores, one clamp body, one bolt |
Tube OD range | 6 mm to 76.1 mm (1/4″ to 2½″) |
Clamp body | Polypropylene (PP), Polyamide (PA / nylon), Aluminium |
Cover & weld plate | Mild steel (zinc trivalent / A3C) or Stainless Steel 304 / 316 |
Hex bolt | M6 to M12, in steel or stainless |
Centre distance | Fixed by clamp group; custom spacing on request |
Body colours | PP – green, PA – black, Aluminum – silver |
Mounting | Weld plate, bolt-on plate, or DIN mounting rail |
Equivalent to | STAUFF, Parker, Swagelok twin / double series |
Minimum order | 50 pieces; bulk and custom volumes supported |
Built to DIN tolerances, Our double hole tube clamps fit straight into existing DIN layouts and rails beside single, light and heavy clamps without redesign.
Two-Bore Construction and Centre-to-Centre Spacing
The detail that separates a good double hole tube clamp from a poor one is center-to-centre spacing – the fixed distance between the two bores. Because both tubes are locked into one body, that spacing is set by the clamp, not by the installer.
This is an advantage, not a limitation. A correctly designed double clamp:
- Holds a constant gap between the two lines, so they never rub or transmit vibration into each other.
- Removes guesswork on site – every clamp along the run places the lines at exactly the same spacing, giving a straight, professional installation.
- Protects both tubes by clamping each to full circumference within its own bore, so neither line carries the load of the other.
We manufacture each double hole tube clamp group with the standard DIN centre distance for that tube size. Where a layout needs a wider gap, a tighter gap, or two different diameters in one body, we build the clamp to a custom centre distance to match your drawing.
When to Specify a Heavy Duty Double Hole Clamps?
A Heavy Duty Double Hole Clamp is the right call when both of these are true: the two lines run parallel along the same path, and they share the same outer diameter. In that case one double clamp replaces two single clamps, halving the mounting points, the part count and the installation time, while fixing the spacing automatically.
Use two single clamps instead when the lines diverge onto different paths, sit at spacings the standard double body does not provide, or are different diameters that no standard double clamp accommodates – though we can often solve the last two with a custom double clamp.
Sizing tip: Confirm both tubes share the same outer diameter (OD) before specifying a standard double clamp, and note the required centre distance. For mixed diameters or special spacing, ask for a custom double body rather than forcing a mismatch.
Body Materials for Double Port Pipe Clamps
The body material sets a Double Port Pipe Clamp’s temperature, chemical and fire performance. We offers three options:
Polypropylene (PP) – the standard, best-value body for paired general routing, with good chemical resistance and vibration damping. Green.
Polyamide (PA / nylon) – the upgrade for higher temperature, higher impact strength and the repeated shock of mobile and earthmoving hydraulics. Black.
Aluminum – for non-combustible, conductive or high-temperature duty such as engine bays, offshore decks and fire-critical zones. Natural silver.
For hardware, zinc-trivalent mild steel covers standard environments, while Stainless Steel 304 or 316 is essential for marine, offshore, washdown and chemical service.
Applications of Double Port Pipe Clamps
Double Port Pipe Clamps are built for paired lines in tight spaces. Our Double Port Pipe Clamps are used across:
- Hydraulic pressure-and-return circuits – holding the feed and return lines together at fixed spacing.
- Mobile, mining and construction equipment – dense hydraulic routing where every millimetre of panel space matters.
- Skid-mounted and packaged units – repeatable two-line clamping with minimal hardware.
- Instrumentation and control panels – neat side-by-side routing of paired sensing and signal tubing.
- Pneumatic and lubrication systems – managing supply-and-return air or oil lines as a pair.
- Machine tools and automation – tidy two-line management on frames and rails.
- Marine and offshore auxiliary lines – stainless double clamps for paired lines in salt-air conditions.
Why Choose Bullion Pipe & Tubes LLP As Your Double Hole Tube Clamps Manufacturers, Suppliers, Exporters In India?
As one of the top Double Hole Tube Clamps Manufacturers, Suppliers, Exporters In India, We deliver imported-grade double clamp quality, manufactured in India, at a competitive price and short lead time.
- Complete double series in one place – paired ODs across the standard range in PP, PA and aluminium, with steel or stainless hardware.
- True import equivalents – dimensionally interchangeable with STAUFF, Parker and Swagelok twin/double series, with no redesign.
- Custom centre distances and pairings – wider, tighter or mixed-diameter double bodies built to your drawing.
- In-house manufacturing control – consistent DIN tolerances, material certificates and batch traceability.
- Stainless 304 / 316 capability – for marine, offshore and chemical work most local suppliers cannot serve.
- Global export and engineering support – supplying the Middle East, Europe, Africa and Southeast Asia, with hands-on sizing and cross-referencing help.
When your layout pairs two lines, Our Heavy Duty Double Hole Clamps keep them aligned, protected and on schedule.