2 1/2 Inch Pipe Rigid Ductile Iron Grooved Coupling for Fire Fighting

Basic Info

Model NO.	DN25-300
Connection	Fastening
Head Code	Round
Structure	Hoop Body+Two Bolts+Two Nuts +Sealing Ring
Technics	Casting
Shape	Equal
Brand Name	Ruixuan
Material	Ductile Iron
Application	Fire Fighting
Feature	Corrosion Resistant
Gasket	EPDM
Product Name	Pipe Fitting Rigid Ductile Iron Grooved Coupling
Warranty	1 Year
Transport Package	Wooden Case
Specification	DN25--DN300
Trademark	OEM
Origin	Henan, China
Production Capacity	1000000per Year

Packaging & Delivery

Package size per unit product 100.00cm * 100.00cm * 100.00cm Gross weight per unit product 20.000kg

Product Description

Steel flexible joint is also called clamp, open expansion joint, steel flexible pipe joint. Steel flexible joint is a kind of pipe connection, reliable performance, easy to install products. At low pressure, by the elastic deformation of the sealing ring, to achieve the purpose of sealing; When the pressure increases, the medium acts on the sealing ring to play the role of self-sealing, and there is a gap between the pipe ends to compensate for the displacement and deflection of the pipe caused by thermal expansion and cold contraction.

 

The working temperature of the clamp joint is generally -30ºC-+130ºC. The medium property is weak acid, weak alkali and lubricating oil range can be applied. If beyond the above range can also provide our company with the nature of the medium parameters or optional parameters or optional specified rubber ring material. In addition to the connection function, the joint can also provide compensation, withstand axial force, provide Angle, reduce vibration wave, adapt to the change of foundation.

 

The advantages of clamp joint:

 

1 Clamp joint has good continuity, will not produce distortion, easy to achieve the ideal laying state.
2 Clamp pipe joint in a free state, do not bear the weight of the pipe, not subjected to external shear, especially DN200 pipe diameter, more must consider the weight of the pipe.
3. It is easy to keep the coaxial position when installing the clamp joint to ensure the uneven distribution of the radial clearance between the inner diameter of the pipe clamp and the outer diameter of the pipe. The rubber ring will be deformed under high pressure due to the large local clearance, which will affect the sealing effect and even destroy the rubber ring.
4. It is suitable for the application in the subsidence zone, which can reduce the Angle between the pipe segments caused by the subsidence of the support pier.
5 is conducive to pipeline maintenance. Turn the pipe, save labor and effort when changing the pipe.

 

Product Parameters

PN1.6/2.5/4.0/6.4MPa KRHD

DN(mm)	Dw(mm)	Allowable Angle Φ	Installation length L (mm)	Maximal length (mm)	Fitting bolt d×L (mm)
80	89	17.90	100	110	M12*60
100	108	15.06	100	110	M14*60
125	133	13.05	105	115	M14*60
150	159	12.09	110	120	M14*60
175	194	10.51	110	120	M16*60
200	219	9.33	116	126	M16*75
225	245	8.36	122	132	M16*80
250	273	7.51	127	137	M18*90
300	325	6.32	130	140	M18*100
350	377	5.45	135	145	M18*100
400	426	4.80	140	150	M18*110
450	480	4.28	145	155	M18*110
500	530	3.88	150	160	M18*120
600	630	3.27	155	165	M18*120
700	720	2.86	160	170	M20*120
800	820	2.51	165	175	M20*130
900	920	2.24	170	180	M20*130
1000	1020	2.02	175	185	M20*130
1200	1220	1.69	180	190	M22*140
1400	1420	1.45	185	195	M22*140
1600	1620	1.27	190	200	M22*140
1800	1820	1.13	195	205	M22*150
2000	2020	1.01	200	210	M24*150
2200	2020	1.01	205	215	M24*150
2400	2420	1.01	210	220	M24*150
2600	2620	1.01	215	225	M24*160
2800	2830	1.01	220	230	M27*160
3000	3020	1.01	225	230	M27*160
3200	3220	1.01	230	240	M27*180

Datas above are only for reference,if you want to know more details, please click here to contact us.

Installation Instructions1. Prepare groove pipe sections, fittings and accessories that meet the requirements.

2. Check whether the rubber sealing ring is damaged and put it on the end of a steel pipe.
3. There should be a certain gap between the end and both ends of the steel pipe close to the end and both ends of the pipe which has been covered with rubber sealing ring. The clearance shall meet the standard requirements.
4. Put the rubber seal ring on the end of another steel pipe, make the rubber seal ring in the middle of the interface, and apply lubricant on the same side.
5. Check the axis of the pipe.
6. Install upper and lower clamps on the outer side of rubber seal-ing ring at the interface position, and clip the collar convex edge into the groove.
7. Press the upper and lower clamp ears with hand force, tighten the collar of the clamp with a wooden hammer, and tighten the upper and lower clamps tightly.
8. At the clamp screw hole position, put on the studs and tighten the nuts evenly to prevent the rubber sealing ring from wrin-kling.
9. check and comfirm that the collar convex edge is clamped into the groove.
products application

Company Profile
Gongyi Ruixuan pipeline equipment factory was founded in 1996.It is an excellent enterprise specializing in manufacturing and selling pipe fittings.It's located in Xicun village ,Gongyi city,Henan province ,the concentrated area of pipeline equipment industry in China.The company factory is located in Xicun town pipeline equipment industrial park.It covered an area of20000 square meters.

At present, the company has the production capacity of pipeline equipment with a maximum diameter of 4000mm, and its main products are: Steel expansion joint, flexible waterproof sleeve, large diameter flange, double flange force transfer expansion joint, large deflection loose sleeve compensation joint, spherical compensation joint, sleeve compensator, bellows compensator, non-metallic compensator, rubber expansion joint, DC medium no thrust sleeve compensator, flexible expansion pipe and other pipeline equipment. The annual production capacity is 30 million sets. The flexible telescopic pipe equipment is mainly used in the pipeline crossing different geological structures under different conditions and the application of pipe installation drop, reduce or avoid the impact of geological settlement and crustal activity on the pipeline, so that the construction unit can save more than 50% of the cost when purchasing the equipment. The rubber expansion joint series products of the company, the maximum production diameter of 3600mm, have been applied in millions of units of thermal power projects in China for many times, and have been praised by the users.

The company passed ISO9001:2008 quality management system certification in 2009 and ISO14000:2004 environmental management system certification in 2009. The company has a strict quality control system, standard production process, standard factory inspection hand section, to ensure that every product meets the national standards and customer requirements.

Business philosophy: responsible production of products, return the trust of customers; To build a community with a sense of belonging and appreciate employees' contributions; Make a contribution to the society of enterprises, give back to the good times. Gongyi Ruixuan pipeline equipment factory is willing to work with friends from all walks of life hand in hand, mutual support, create a better future!

Certifications exhibition

FAQQ:Can you make the product as per client's requirement?
A:Yes, we can make it with your exact requirement.

Q:What are your payment terms?
A:T/T (30% as deposit, the rest 70% will be paid before delivery), L/C at sight.

Q:Where is your nearest loading port?
A:Shanghai, Qingdao or Tianjin, China.

Q:How can you guarantee the quality or any warranty?
A:If any quality problems during use, all the products can be returned or according to consumer's requests.

Q:Do you accept small quantity order?
A:Of course we do.

Q:And what is your shipment and delivery time?
A:By sea or air. Normally 7 to 14 Days for delivery, according to your order quantity.