DIVING EQUIPMENTS
Underwater Light
J. K. Subsea Engineering Pvt. Ltd. is an underwater light manufacturer and supplier for the diving, subsea and hyperbaric industry. Our Underwater Light, Model No. JK-UWL-300, is a compact LED light that gives a 100° wide flood of 3000 K warm white light from only 1.5 W on a 12 VDC supply. The aluminium housing, tempered glass window and dual Viton O-rings are designed for use down to 300 metres of seawater. The LED is rated for 30,000 hours, so you get a long working life from a very small power load.
DIVING EQUIPMENTS
Cylinder Quad
K. Subsea Engineering Pvt. Ltd. is a cylinder quad manufacturer and supplier for the diving, offshore and marine industry. Our Cylinder Quad, also called a gas bank, holds 50 litre cylinders with a 204 kgf/cm² working pressure in one epoxy painted, fire proof frame with a DNV lifting pad eye. It is available in 8 sizes, from 4 to 64 cylinders (JK04CQ to JK64CQ), and in Air, Nitrogen and Oxygen versions.
Every quad has 2 charging points, so you can fill it from 2 compressors at the same time, and a purpose-built control panel to manage the gas. The design follows IMCA D018 and IMCA D023, and each quad ships with hydrotest, gas leak test, load test and MPI test certificates.
What is the Cylinder Quad?
A cylinder quad stores gas in many cylinders that are linked together in one frame. You lift it, move it and connect it as a single unit. People in the industry also call it a gas bank.
The J. K. Subsea Cylinder Quad is built for oxygen, breathing air, helium, nitrogen and hydrogen. This page covers the Air, Nitrogen and Oxygen versions. The 50 litre cylinders sit in a frame made from MS box pipe or C section, joined by a cylinder valve system, high pressure tubing and a brass manifold.
The cylinders are split into 4 equal groups. Check valves and crossover management control the flow between them. A purpose-built panel gives simple control of the whole quad, and the DNV lifting pad eye lets you handle the full frame by crane.
Cylinder Quad Types: Air, Nitrogen and Oxygen
All three versions share the same frame, cylinders, plumbing and panel. The difference is the gas each one is built to hold.
Cylinder Quad Air :-The Cylinder Quad for Air stores breathing air for diving spreads, diver air panels and surface supplied diving. It suits users who need a large air supply that lifts on and off a vessel and connects to a panel or a scuba replacement package.
Cylinder Quad Oxygen :- The Cylinder Quad for Oxygen stores breathing oxygen for chamber and diving use. The quad in the data sheet photo carries a “Breathing Oxygen” label on the frame.
Cylinder Quad Nitrogen :-The Cylinder Quad for Nitrogen stores nitrogen at high pressure in the same quad frame, with the same 4 group plumbing and 2 charging points. Contact us with your use so we can match the fittings and labels.
Key Features of the Cylinder Quad
- 8 Sizes Available: From 4 cylinders (JK04CQ) up to 64 cylinders (JK64CQ), so you can match storage to the job.
- Tested Cylinder Strength: Hydrostatic test pressure of 340 kgf/cm², yield pressure of 500 kgf/cm² and burst test pressure of 560 kgf/cm².
- Epoxy Painted, Fire Proof Frame: Built in MS box pipe or C section, with square pipe in the 50 to 100 range.
- Crossover Management: Check valves and high quality crossover control manage the gas flow between groups
- Purpose-Built Control Panel: A dedicated panel for simple control of the quad.
- 50 Litre Cylinders: Each cylinder has a 50 litre water capacity and a 204 kgf/cm² working pressure.
- DNV Lifting Pad Eye: Lets you lift and place the whole quad by crane.
- 4 Equal Groups: The cylinders are divided into 4 equal groups for controlled supply.
- Two Charging Points: Fill the cylinders from 2 compressors at once and save fill time.
- High Pressure Tubing and Brass Manifold: Fitted with high pressure tubing, a brass manifold and high pressure fittings.
Applications of the Cylinder Quad
Diving Spreads: A central gas store that feeds your diver air panel or dive control system.
Oxygen Storage for Chambers: Holds breathing oxygen for decompression and treatment use.
Scuba Replacement Packages: Stores bulk air that supports an SRP.
Offshore and Onshore Gas Storage: A single frame for projects that need many cylinders in one place.
Dive Support Vessels: A lift-ready gas bank that moves on and off deck with the crane.
Air Supply for Surface Supplied Diving: Feeds divers through an air panel at the surface.
Nitrogen Storage: High pressure nitrogen held in the same quad frame.
Technical Specifications of the Cylinder Quad
Cylinder Quad Models
| Model | Cylinders | Total Water Capacity |
|---|---|---|
| JK04CQ | 4 | 200 litres |
| JK06CQ | 6 | 300 litres |
| JK08CQ | 8 | 400 litres |
| JK16CQ | 16 | 800 litres |
| JK32CQ | 32 | 1,600 litres |
| JK48CQ | 48 | 2,400 litres |
| JK56CQ | 56 | 2,800 litres |
| JK64CQ | 64 | 3,200 litres |
Total water capacity is calculated by multiplying the cylinder count by 50 litres. It represents the cylinders’ water capacity, not the volume of gas stored.
Cylinder Quad Frame and Plumbing
| Specification | Detail |
|---|---|
| Square Pipe | 50 to 100 thk. pipe |
| Frame Material | MS square pipe or C section |
| Painting | Epoxy painted, fire proof |
| Tubing and Fittings | High pressure tubing pipe, brass manifold and high pressure fittings |
| Lifting Type | DNV lifting pad eye |
| Magnetic Particle Inspection | Article 7 and 25 (SE 709) |
| Cylinder Groups | 4 equal groups |
| Charging Points | 2 charging points, for 2 compressors at the same time |
| Flow Control | Check valves and high quality crossover management |
Manufacturer Certificates
| Certificate | Included |
|---|---|
| Cylinder Hydrotest | Yes |
| Gas Leak Test | Yes |
| Load Test | Yes |
| MPI Test Certificate | Yes |
Why Choose J. K. Subsea Engineering for the Cylinder Quad?
Eight Sizes in One Range: Choose from 4 to 64 cylinders without switching supplier.
Tested and Documented: Hydrotest, leak test, load test and MPI certificates come with the quad.
One Frame for Air, Nitrogen and Oxygen: The same proven build, set up for the gas you use.
Strong After-Sales Support: Ongoing technical help for offshore and subsea clients worldwide.
Fill Faster: Two charging points let two compressors fill the quad together.
Lift Ready: A DNV lifting pad eye makes crane handling simple.
Direct From the Maker: Questions on build, fittings and sizes go straight to the team that made the quad.
Wide Product Range: We also make scuba replacement packages, diver air panels, decompression chambers, diving machinery containers, and diving fittings and valves, supplied worldwide.
What's Inside the Cylinder Quad
50 Litre Gas Cylinders: Hold the gas at a 204 kgf/cm² working pressure.
Brass Manifold: Collects the gas from the cylinder groups.
Check Valves and Crossover Control: Direct the flow and manage the 4 cylinder groups.
Control Panel: A purpose-built panel for easy control of the quad.
Epoxy Painted Frame: Fire proof MS box pipe or C section frame.
Cylinder Valve System: Links the cylinders so they work as one quad.
High Pressure Tubing and Fittings: Carry the gas between cylinders, manifold and panel.
Two Charging Points: Let you fill the quad from 2 compressors together.
DNV Lifting Pad Eye: For safe crane handling of the full frame.
Additional Features and Provision
Wide Gas Range: The quad is built for oxygen, breathing air, helium, nitrogen and hydrogen.
Built to Your Size: Pick from 8 standard sizes, or ask us about other needs.
Full Test Pack: Each quad comes with hydrotest, gas leak test, load test and MPI test certificates.
Certifications & Standards for the Cylinder Quad Manufacturer
The Cylinder Quad is built in line with IMCA D018, the code of practice for the initial and periodic examination, testing and certification of diving plant and systems. It also follows IMCA D023, the guideline for surface oriented air diving systems. The frame carries a DNV lifting pad eye, and the cylinders are painted under Gas Cylinder Rules 2016 of the Government of India. Each quad comes with a cylinder hydrotest, gas leak test, load test and MPI test certificate, and the magnetic particle inspection follows Article 7 and 25 (SE 709).
IMCA D018
Certified
IMCA D023
Certified
IMCA D040
Certified
Frequently Asked Questions About the Cylinder Quad
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Get In Touch
Get Your Cylinder Quad Quote Today
Need a cylinder quad for air, nitrogen or oxygen? Talk to the J. K. Subsea Engineering team about size, gas type, pricing and delivery time for your gas bank.