Henan Lanphan KR-H(J) big space clamp coupling is a new type pipe connector, it takes advantage of pressure which produced by medium and self tightening force of sealing ring to seal the medium. KR-H(J) big space clamp coupling is widely applied in coal, thermal power generation, hydro electric generation, petroleum, chemical engineering, food processing, natural gas transportation, sewage treatment, cement pump truck, structural fire protection, shipbuilding, paper making and other industries. Its executive standard is GB/T 8260-2008.
Two shells are connected by bolts on outside, for large caliber clamp coupling, there are three or more shells in head-to-tail connection to form a circle, two connecting pipes are in the center, between them there is special type adhesive tape to seal, the structure of big space flexible clamp coupling makes every pipe connector realize certain expansion amount, and the amount can be adjusted according to specific needs and different model.
- Realize pipe extension or compression, as well as angular orientation displacement, but it’s not very big.
- Comparing to flange, it can enhance work efficiency for 6-8 times, and maintenance workload is very small.
- Since big space clamp coupling’s external metal pipe clamp is not close to pipeline tightly, the reasonable gap between pipeline makes pipeline generate certain turn angle.
KR-H(J) big space clamp coupling replaced the pipe connection method with flange plate, and make pipe system in flexible condition, self-compensating. Make pipe flex by temperature difference and pressurize, make pipe bend by base sinking and pipeline move direction. Easy to install and dismount, easy to maintain pipeline and lengthen service life of pipe system.
Specific C type rubber sealing ring and unique connection method makes it has triple sealing functions:
- rubber sealing ring with self-tightness, withhold pipeline by its elasticity;
- tighten bolt on external pipe clamp would further compress the rubber sealing ring;
- when there is pressure in pipeline, it will inflict C type lip pressure from inner chamber, and make rubber sealing ring further compress pipe, the higher of the pressure, the better of the sealing property.
KR-H(J) big space clamp coupling has two structural styles: shoulder type and ring type. No matter shoulder type or ring type, they all use welding connection, although it won’t reduce welding process, bolt number greatly lessen comparing to flange connection. It has obvious cost advantage on pressure pipe which over 10kg, steel ring type clamp coupling applies to low pressure pipeline, which is strict to welding location, shoulder type has a wider application range, applies to high, low and medium pressure, while it costs higher.
Comparison of KR-H and KR-J
Both KR-H and KR-J have functions of quick installation, quick knockdown, save cost and replacing expansion joints and flange. But their product structure is different, thus, it’s necessary to know their specific distinguish:
- J type clamp coupling applies to high pressure, big turn angle, small compensation amount needs pipe system, reasonable sealing ring design makes it easier to install. While comparing to H type clamp coupling, its compensation amount is smaller, when pipe misplacement or gap inaccuracy, installation easily goes wrong. Thus, it needs excellent professional technical capability installation person.
- H type clamp coupling applies to high pressure, small turn angle, big compensation amount needs pipe system, it has advantages of large compensation amount, strong universality. But comparing to J type, its sealing ring design is more complex and not convenient for install.
basic specification of PN25 ring type clamp coupling (KRH type)
|pipe end external
|pipe end size
basic specification of PN25 shoulder type clamp coupling (KRJ type)
|pipe end size
|1||Clamp||pc||≥2 pc||Nodular cast iron, cast steel, stainless steel, spraying corrosion protection||spraying corrosion protection|
|3||Short pipe||pc||2||Carbon steel, stainless steel|
|Note: we can use other material according to client requirements.|
- According to product’s using condition, technicians will offer rationalization;
- Provide detailed product performance specification;
- Provide professional quoted price;
- Provide 24-hour technical consulting reply.
- Begin to supervise from raw material, its qualified rate can reach to 100%;
- Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
- Provide product’s inspection record of key junctures to customers;
- Provide production schedule photos to customers at regular intervals;
- Package and transport products strictly accordance with export standard.
- Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
- When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
- During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
- If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
- Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information.
- What’s the application area of KR-H(J) big space clamp coupling?
Henan Lanphan KR-H(J) big space clamp coupling is widely applied in coal, thermal power generation, hydro electric generation, petroleum, chemical engineering, food processing, natural gas transportation, sewage treatment, cement pump truck, structural fire protection, shipbuilding, paper making and other industries.
- What’s the applicable temperature of KR-H(J) big space clamp coupling?
- What’s the applicable pressure of KR-H(J) big space clamp coupling?
Applicable pressure: 1.0MPa, 1.6MPa, 2.5MPa, 4.0MPa.
- What payment terms do you accept?
T / T, Paypal, Western Union, Ali credit insurance, L/C etc. Other payment terms can be discussed during transaction.
- How to delivery the product?
According to the quantity. It is always by Express, by sea, by air.
Packaging & Shipping
KR-H(J) big space clamp coupling usually use non-fumigation wooden case to package, for large diameter and large amount orders, metal frame package is customizable.
- Comparing to traditional flange plate, KR-H(J) big space clamp coupling has advantages of reasonable design, good technical performance, reliable and safe operation and high social benefit.
- Small in volume, light weight, structure is simple, long service life.
- Low project cost. It enables compensate steel pipe expansion by itself, whole pipe can operate without expansion compensator.
- Good sealing property. The higher of medium pressure, the better of sealing property, and it’s impact resistance and shack resistance.
- Wide application range. Electric power, mining, chemical engineering, environmental protection.