A).ISO9001:2008 & CE approved . B).30 years sales experience C).Size diversity(DN32-3600mm) D).Leader of Expansion joint

Our rich experience and expertise in the industry , On the basis of Gongyi Changmao Supplying and Draining of Water Materials Comapny and Sino-SouthKorea Joint Venture Henan Changmao Yuanyi Valve Co.,Ltd , we specialize in the enquipment of supplyingand draing of water materials.Focus our business in the water supply industry and work closer with our partners and customers from around the world !

Gongyi City one of "Top hundred county" located between Zhengzhou and Luoyang, great convience of transportation depend on the Longhai Railway, 310 National Highway, . Great Poet Dufu's hometown, good to sightseeing of Luoyang peony, to the South is world known Kongfu birthplace Shaolin Temple, to the north is the Yellow River. complete infrastructure, advanced telecommunications, transport facilities, in fact, outstanding and excelelent place to invest.

Authorized by china petroleum and chemical corporation and the top 500 enterprise in Henan.It has a certificate"the enterprise reaching the standard of total quaity control"issued by China Agriculture Department.It has passed the certification of ISO 9001 :2008 international system of quality control.

Products reach nearly one hundred series, thousands of specifications, including five series of patent products. They are flexible rubber joints, reduced rubber joints, rubber elbows, fan coil joint, sewage check valve rubber, rubber filter, rubber compensator air flue compensator, flexible hanger, rubber shock pad, shock absorber, pipe damper, seal, gate valve,check valve, foot valve, filters, valves, pressure balance valve, valve, butterfly valve, pipe expansion joints, bellows, waterproof sleeve tube, power delivery Joint, limit expansion joints etc.

Registered trademark "Changmao" brand, selling products throughout 31 provinces, municipalities and autonomous regions, was used in many key prestigious projects, and exported to the U.S., Germany, Italy, Japan, Korea, Egypt, Spain, Vietnam and other countries, enjoying high popularity .

We do believe there will be promising fruitful cooperation between us ! Meanwhile ,to launch different kinds of economic and technology cooperation to advance improvement!

Flexible Rubber Joint is consist of fabric reinforced rubber body and metal flange or loose joint ,used at shock absorber and compensate for displacement.JGD mean single ball (arch),JGD-A dual ball ,JGD-B threaded rubber joint,which own high flexibility,high media resistance and climate , also called rubber joint,soft joint,shock absorber,tube vibration isolator,pipe shock absorber , all mean to JGD rubber joint. Introduction of foreign advanced technology, rubber inner layer of the main in the high-pressure forming process, nylon cord combine glue better than the other common flexible rubber joint in the marketplace, the higher of working pressure ,the better on rubber quality . The product mix within the natural one layer, smooth seamless , labels used vulcanization process, together with the product, the product has obtained national patent .[Characteristic]:With high pressure, good elasticity, displacement allowance, balance pipe error, absorb vibration, reduce noise, effective, and easy to install.[Application]:Can be used in water and wastewater, recycled water, fire fighting, paper, pharmaceutical, petrochemical, shipping, pumps, compressors, fans and other piping systemsbr> [Media]:Common type used to transport -15 to 120 centigrade, of air, compressed air, water, sea water, oil, acid and alkali. Special type used to transport -30 to 250 centigrade of the medium contain oil, strong alkali acid concentration, solid-state materials[Recommendation]Good value and Cost are key indicator when pruchase products ,sino south korea joint venture obviously introduce ur advanced and leading technology and science , start produce in 1988 , approved by ISO 9001:2000, products are used on keyp projects , and self decided export to South Korea,USA,SPAIN,ITALY,UAE,BRAZIL etc.strictly material pruchase ,serious inspection,strong sales network ,cost effective offer lead us large marketshare , meanhwhile well secure your construction project .We warmly welcome your esteemed company visit us and guide work any time ! Yes, we can do it for you!

Material

NO.	NAME	Material
1	Inner and Outer Glue	EPDM,NR,NBR,NEOPRENE
2	Key Frame	Nylon Cord Fabric
3	Pressurized Ring	Steel Wire Strand
4	Flange	Q235 Zinc Plating/Plastic Spray

Technology Condition:

Size	JGD-1	JGD-2	JGD-3
Working Pressure MPa(Kgf/cm2)	1(10)	1.6(16)	2.5(25)
Explosion Pressure MPa(Kgf/cm2)	2(20)	3(30)	4.5(45)
Vacume KPa(mmHg)	53.3(400)	86.7(650)	100(750)
Working Tempreture	-15--115 centigrade special requirement made could reach to -30--250 centigrade
Media	air,compressed air ,water, seawater,hot water,oil,acid,alkali etc.

Main Dimension:

DN		Lenth L	Axial Displacement		Lateral Displacementmm	Angle Displacementa1+a2
mm	Inch		Extension mm	Compressioin mm
32	1 1/4	95	6	9	9	15
40	1 1/2	95	6	10	9	15
50	2	105	7	10	10	15
65	2 1/2	115	7	13	11	15
80	3	135	8	15	12	15
100	4	150	10	19	13	15
125	5	165	12	19	13	15
150	6	180	12	20	14	15
200	8	210	16	25	22	15
250	10	230	16	25	22	15
300	12	245	16	25	22	15
350	14	255	16	25	22	15
400	16	255	16	25	22	15
450	18	255	16	25	22	15
500	20	255	16	25	22	15
600	24	260	16	25	22	15
700	28	320	16	25	22	15
800	32	340	16	25	22	15
900	36	370	16	25	22	15
1000	40	400	18	26	24	15
1200	48	420	18	26	24	15

NOTES:

1)DN32--1200,PN=1.0MPa,0.6MPa.2)DN32--500,PN=2.5MPa.3)DN32--100,PN=4.0MPa.4)Flange according to JB81-595)For special requirement , please provide written drawing .br> 6)When used on high building , bracket support or fixed equipment for pipes , or anti pull enquipment should be installed.Force a fixed support or bracket must be greater than the axial force, or should install anti-pull-off device.

PN40 Single sphere rubber joint