Single lock type: MJS 15~600A / MJL 20~600A / MJSF, MJSFL 65~600A
Double locks type: MJD 13~1000A / MJDL 15~1000A / MJDF, MJDFL 65~100A
(producible up to 4000A)

Slip type couplings, without grip rings, are axially non restrained. They allow thermal expansion and contraction of pipes. Pipes need to be fixed properly in order to avoid fall-out caused by axial force.
Double locks types are composed of two separate pieces of casing and lock part at each end. They have better tightening and wider coupling range.
MJSF, MJSFL, MJDF, MJDFL with thicker casing are for higher pressure.

Application
- Industries:
water / oil & gas / shipbuilding / civil engineering & construction / general industry /
machinery & equipment / maintenance of pipeline
- Pipe Materials:
steel / stainless steel / cast iron / ductile iron / copper / concrete / Cu-Ni / aluminum /
PVC / PPR / PE / GRE / GRP, etc.
* pipes of different material can be connected by coupling as long as they have same outside diameter

Product Characteristics
* Assembly type saves work time.
* Applicable to various pipe materials. Even connects pipe of different material. (e.g. steel pipe + PVC pipe)
* Using a (torque) wrench to install eliminates worry about fire.
* No preprocessing is required at pipe ends.
* Rubber gasket accommodates vibration, impact, noise, angular deflection, and distance between pipe ends. This makes couplings seismic design.
* Installation is done at one side. It enables products to be stored or work to be done at a narrow area.
* Stainless steel design is much lighter than cast iron product and reduces load on pipes.
* Grip type couplings resist against axial movement.
* Slip (flexible) type couplings allow pipe expansion and contraction.
* Repair clamps provide semi-permanent repair with speed and no down time.
* Couplings can be assembled and disassembled several times.

Part Material
- Casing: SUS304, SUS316
- Slide: SUS304, SUS316
- Bolt: SUS304, SUS316, SCR420B, SCM435 galv.
- Bar Washer/Nut: SUS303F, SUS304, SUS316, S45C galv.
- Gasket: EPDM, NBR, Silicone, FKM(Viton)
- Strip Insert: SUS304, SUS316 (option for straight pipe coupling & clamp)

Certificates
ISO 9001, CE Mark, ABS, BV, DNV, LR, NK, RINA
KIWATEC(Korea water), JWWA(Japan water), FESC(Japan fire)