BOP Hose — Choke & Kill / Control Line
Pressure control hose for the blowout preventer hydraulic circuit and Choke & Kill lines — manufactured domestically; we are the only producer in Iran.
Product Overview
BOP hose is a pressure control hose used in the hydraulic circuit of the blowout preventer system and in the Choke & Kill lines of well control equipment on drilling rigs. It forms part of a system used in oil and gas drilling, in accordance with API Spec 16C, to control wellhead pressure and prevent an uncontrolled blowout. The hose must therefore not only withstand high static pressure but also resist pressure impulse, abrasion and the harsh conditions of the rig environment. Drawing on its technical expertise in assembling and crimping high-pressure hose, and using European materials, Tose'e Tejarat Sayyalat has begun domestic production of this product and is currently the only manufacturer of BOP hose in Iran.
Construction of the hose we manufacture
The BOP hose we manufacture is designed and assembled for a working pressure (WP) of 380 bar, with a fire-resistant outer cover to withstand heat and possible flame in the rig environment. The outer layer incorporates a flexible corrugated metal hose in 316 stainless steel, which increases the mechanical and thermal resistance of the assembly. Sample product is pressure tested to 1,000 bar before delivery.
Applications
- Choke & Kill lines of the well control system
- Hydraulic control circuit operating the blowout preventer (BOP stack)
- Pressure control lines on drilling and wellhead units, and on floating and semi-submersible platforms
End-User Industries
Technical specification of the hose we manufacture
| Product type | BOP pressure control hose (Choke & Kill / Control Line) |
|---|---|
| Manufacture | Manufactured domestically by Tose'e Tejarat Sayyalat using European materials |
| Primary application | Well control and blowout preventer systems in drilling operations |
| Working pressure (WP) | 380 bar |
| Test pressure | Sample tested to 1,000 bar |
| Outer cover | Fire-resistant cover |
| Outer reinforcing layer | Flexible corrugated metal hose in 316 stainless steel |
| End connection type | To the buyer's technical specification |
| Quality control | Sample pressure testing at an accredited laboratory to Iranian National Standard 4566 before delivery |
Industry reference specification — 5,000 psi fire-resistant BOP hose (Fire-Flex 5000 BOP)
The table below gives the technical specification of 5,000 psi fire-resistant BOP hose by size, based on the official Fire-Flex BOP Hose technical catalogue of NRP-Jones (United States). It is provided as an industry technical reference.
| Part number | Nominal size (ID) | Outside diameter (OD) | Working pressure (WP) | Minimum bend radius | Weight |
|---|---|---|---|---|---|
| A825-06 | 3/8″ (9.5mm) | 0.90″ (22.9mm) | 5000 psi (345 bar) | 6″ (152mm) | 0.51 lb/ft (0.76 kg/m) |
| A825-08 | 1/2″ (12.7mm) | 1.04″ (26.4mm) | 5000 psi (345 bar) | 9″ (229mm) | 0.64 lb/ft (0.95 kg/m) |
| 1825-12 | 3/4″ (19.1mm) | 1.54″ (39.1mm) | 5000 psi (345 bar) | 12″ (305mm) | 1.50 lb/ft (2.23 kg/m) |
| 1825-16 | 1″ (25.4mm) | 1.79″ (45.5mm) | 5000 psi (345 bar) | 15″ (381mm) | 1.97 lb/ft (2.93 kg/m) |
| 1825-20 | 1.1/4″ (31.8mm) | 2.21″ (56.1mm) | 5000 psi (345 bar) | 18″ (457mm) | 3.06 lb/ft (4.55 kg/m) |
| 1825-24 | 1.1/2″ (38.1mm) | 2.54″ (64.5mm) | 5000 psi (345 bar) | 22″ (559mm) | 3.98 lb/ft (5.92 kg/m) |
| 1825-32 | 2″ (50.8mm) | 3.05″ (77.5mm) | 5000 psi (345 bar) | 27″ (686mm) | 5.83 lb/ft (8.67 kg/m) |
- Application: Flexible control piping for the blowout preventer and the associated valves that command wellhead pressure during drilling operations.
- Tube: Oil-resistant nitrile (NBR), black.
- Reinforcement: Multiple layers of high-tensile steel wire.
- Cover: Special fire-resistant rubber, fibreglass impregnated.
- Temperature range: −40 to +100 °C (−40 to +212 °F).
- Coupling type: Skive type.
In plain terms: This hose is in effect the safety line of the blowout preventer system: if wellhead pressure rises suddenly, it carries the command to close in or control the well from the control station to the BOP equipment. That is why it must both withstand very high pressure and resist fire.
Technical Catalogue
The technical catalogue for BOP hose is available on request from our sales department or by email.
Request the technical catalogueRequest a quotation for BOP hose
This website is not an online shop and enquiries are not registered automatically through the site. The fastest route is to send your specification on WhatsApp, or contact us directly on the numbers below.
For pricing and delivery time, send us the size, length, working pressure and end connection type by phone, WhatsApp or email.


