Tianjin MIC Valve Co., Ltd. · Valve manufacturer in Tianjin China since 1998
DJ005 carbon steel dismantling joint with flanged ends and bolt holes, shown in profile
Dismantling Joints

DJ005 Dismantling Joint Carbon Steel

DJ005 is a carbon steel dismantling joint designed for easy disassembly and maintenance in industrial piping systems. It connects two pipe sections with a bolted flange joint that allows the pipe to be separated without cutting or welding, enabling inspection, cleaning or replacement of components downstream. The joint is built for medium- and low-pressure applications in water, power, petrochemical and heating lines.

Model CodeDJ005
CategoryDismantling Joints
ManufacturerTianjin MIC Valve Co., Ltd.
Size and Pressure RatingConfirmed on quotation
CertificationISO 9001 and ISO 14001 certified plant
ModelDJ005
Product TypeDismantling Joint
MaterialCarbon Steel
ConnectionFlanged, bolted joint for pipe flanges
Nominal Diameter RangeDN10 to DN2600 mm
Nominal Pressure Range0.05 to 4.0 MPa
SeriesDJ005 dismantling joint series
Key Benefits

What This Model Gives You

  • Allows pipe sections to be separated without cutting or welding for maintenance access
  • Carbon steel body provides strength and durability in medium- and low-pressure service
  • Flanged connection ensures alignment and sealing when reassembled
  • Designed for repeated disassembly and reassembly without loss of integrity
  • Part of a valve and joint programme covering DN10 to DN2600 and 0.05 to 4.0 MPa
  • Built under ISO 9001 and ISO 14001 certified manufacturing processes
Problems Solved

Problems It Removes

  • Cutting and rewelding pipe sections during maintenance causes downtime and increases cost
  • Lack of access points in long pipelines makes inspection and component replacement difficult
  • Standard flanges do not allow for repeated disassembly without seal degradation
  • Buyers need a reliable joint that maintains alignment and sealing over multiple cycles
  • Suppliers offering only welded or permanent connections limit flexibility in system design
Application Scenarios

Where It Is Installed

  • Routine inspection and cleaning of pipelines in water treatment and distribution systems
  • Maintenance access in power plant auxiliary lines where components need periodic replacement
  • Service entry points in petrochemical process lines for sampling or sensor installation
  • Installation of strainers or flow meters in heating and cooling circuits
  • Facilitating repairs in long runs of industrial piping where cutting is not practical
Who It Is For

Buyers It Suits

  • Plant maintenance engineers needing quick access to pipeline sections
  • EPC contractors specifying modular piping systems with service points
  • Water utility operators managing long-distance distribution networks
  • Piping fabricators integrating dismantling joints into skid-mounted units
  • Valve distributors stocking joint solutions for industrial and municipal projects
Technical Features

How It Is Built

  • Flanged connection with bolt holes for pipe flanges on both ends
  • Carbon steel body suitable for medium- and low-pressure applications
  • Designed for repeated disassembly and reassembly without damage
  • Part of a product programme covering DN10 to DN2600 and 0.05 to 4.0 MPa
  • Built to fit standard flange dimensions used in industrial piping systems
  • Integrated into a valve and joint range certified to ISO 9001 and ISO 14001
Materials

Material Selection

  • Body material is carbon steel; other material options are confirmed on request
  • Flange face and bolt hole pattern are matched to the buyer's pipe standard
  • Material certificates are issued with the order when requested
Manufacturing

How It Is Made

  • Carbon steel body cast and machined on in-house fine machining equipment
  • Flanges drilled and machined to match standard flange patterns
  • Joint assembled with bolts and gaskets for testing
  • Pressure tested and checked for leakage before packing
  • Marked, wrapped and crated for container shipment from Tianjin
Quality Control

How It Is Checked

  • Dimensional check of flange bolt hole pattern and face-to-face length before assembly
  • Leakage test performed on assembled joint under pressure
  • Bolt hole alignment verified to ensure proper reassembly
  • Testing conducted on the 10 sets of imported inspection and testing equipment
  • Records maintained under the ISO 9001 quality management system
Certification

Certificates Issued With This Valve

  • ISO 9001 quality management system certification
  • ISO 14001 environmental management system certification

Certification statements are limited to the management system certificates the factory actually holds. Product-level approvals for your market are confirmed before order.

Customisation

What Can Be Changed

  • Flange standard and drilling pattern matched to the buyer's piping system
  • Material variant confirmed per order based on medium and temperature
  • Private label marking and packing available on OEM orders
  • Mixed-diameter orders combined with other valves in one container
  • Gasket type and bolt material selected to match the service conditions
Comparison

How It Compares With the Alternatives

Welded pipe jointA welded joint is permanent; the dismantling joint allows repeated disassembly without cutting
Standard flange couplingA standard flange coupling requires full disconnection of the pipe; the dismantling joint allows separation while keeping the pipe in place
Threaded jointA threaded joint is limited to smaller diameters and lower pressures; the dismantling joint supports larger DN and higher pressure ratings
Lug-type butterfly valveA lug valve is for isolation; the dismantling joint is for access and maintenance, not flow control
Use Guide

Installing and Operating This Valve

  • Confirm the flange standard, bolt pattern and pressure rating before ordering
  • Ensure both pipe flanges are clean and undamaged before assembling the joint
  • Tighten bolts evenly in a cross pattern to avoid misalignment
  • Do not over-tighten bolts to prevent gasket damage or flange distortion
  • Use the same gasket type and material as the original piping system
  • Inspect the joint and gasket during each reassembly for wear or damage
FAQ

DJ005 Dismantling Joint Carbon Steel FAQ

What size and pressure rating is DJ005?

DJ005 is available in nominal diameters from DN10 to DN2600 mm and nominal pressures from 0.05 to 4.0 MPa. The exact rating is confirmed on request based on your line data.

Can this joint be used in high-pressure lines?

Yes, it is rated for pressures up to 4.0 MPa. The pressure rating is confirmed per order based on the selected nominal diameter and flange standard.

What material is used for the body?

The body is carbon steel. Other material options are confirmed on request for specific media or temperature conditions.

Can it be supplied with gaskets and bolts?

Yes, gaskets and bolts are supplied with the joint. The type and material are matched to the buyer's piping standard and service conditions.

Is the joint suitable for repeated disassembly?

Yes, it is designed for multiple disassembly and reassembly cycles without loss of sealing or alignment.

What certification does the factory hold?

Tianjin MIC Valve Co., Ltd. is certified to the ISO 9001 quality management system and the ISO 14001 environmental management system.

How do I get a quotation?

Send the model, required nominal diameter, pressure rating, flange standard, and quantity by WhatsApp or email. Our sales team replies with a quotation and confirmed specification sheet.

Get a Price for DJ005 Dismantling Joint Carbon Steel

Tell us the quantity, flange standard and the medium on your line. You get a quotation with a confirmed specification sheet, not a catalogue page.

Language