GLOBAL SHARING OF HIGH-QUALITY PRODUCTS

With advanced technology and equipment, the products are of excellent material, in good finish with well mechanical property and tightness and good interchangeability which make it easy to be assembled.

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DONGHUAN MALLEABLE IRON

Established in 1986,which is an enterprise manufacturing pipe fittings for more than 30 years

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Malleable iron pipe fittings

Malleable iron pipe fittings

Air hose coupling

Air hose coupling

Double bolt clamps

Double bolt clamps

Tube clamps fittings

Tube clamps fittings

Conduit bodies

Conduit bodies

Carbon Steel pipe nipples

Carbon Steel pipe nipples

Camlock couplings

Camlock couplings

Meter Union

Meter Union

Steam coupling

Steam coupling

Valve

Valve

Stainless steel pipe fittings

Stainless steel pipe fittings

Explosin-proog pipe unions

Explosin-proog pipe unions

Fast coupling

Fast coupling

Malleable iron pipe fittings


Malleable fittings include elbows, tees, couplings and round flange etc. Floor flange is very popular to anchor items to the ground. High precision equipment is quality assurance. Our factory are the first to use the electric stove for castings and electric facility in annealing and galvanizing process, besides we had improved the equipments, used to yellow shells , the goods produced by new casting line no matter inside or outside is very smooth and shining. Internal burrs will not appear in the goods produced by new casting line. which has no pollution and easy to control the material composition. We have established the quality system conforming to IS0 9001:2000 and have the certification of CRN in Canada, European of CE and Turkey of TSE.

Air hose coupling


which are broadly used for air and water in industry and construction. They have two lugs (claws) each, which engage in the corresponding notches of the opposite half. That is why they can be connected so easily – just by pushing two part together and turning. Our factory have 30 years of production experience of hose fittings. Product quality is stable, test results are more than relevant national standards and feedback from customers are not bad. If you are interested, welcome enquiry. We assure you of our best services at all times.

Double bolt clamps


Double wire designed screw clamps are very useful and provide great clamping force. Convenient to use, simply release and tighten the screw to adjust the clamp diameter. Ideal for industrial or home use, help to lessen pressure and protect the hose.

Tube clamps fittings


Malleable iron pipe clamps fittings used to connect steel tubing, different rang of fittings can combined with standard tubing enables the users to create any structure imaginable for use in all manner of industries, such as handrail fittings, shelving, car ports, shopping trolley bays, support frameworks ,outdoor sport, exhibition stands, play areas and so on. Instead of the orginal welding method, the tube can be quickly connected with only a simple allen key, which is more simple and convenient. You should select the correct fittings and size for any application. If you want to know more technical support or assistance regarding the use and interpretation of the those products, pls contact us .

Conduit bodies


From 2012 our factory begin to produce the electric fittings, at first we produce conduit body, including (LL,LR, LB,T) with malleable iron, then enlarge the other items. Now we can produce the Guat, bushing, EYS, Lt connector with lugs, lt connector without lugs, union, enlarger, close nipple, drain breather, cover, aluminum lugs etc. In the beginning we use the black sand mould to produce, then we improve step by step, now we all revised the new mould with yellow sand, the thread is maked by CNC machine. The surface we mainly make now is electric, but also can make with hot-dip galvanized firstly then electric. Also for the new item we also have the experienced to open the mould, if you are interested welcome to contact with us.

Carbon Steel pipe nipples


Carbon steel nipples have precise sized, better mechanical behavior and tightness, and used widely in construction energy, processing, and fabrication industries.We provide a comprehensive range of Carbon Steel Nipple. And it is been manufactured by technical team using high grade carbon steel & technologically advance machinery.

Camlock couplings


A camlock fitting, also called a cam and groove coupling, is used to connect two hoses and or pipes together in a variety of industries, so that a commodity from one can be transferred to the other. This, together with their cost effectiveness makes them the most popular coupling in the world.

Meter Union


Gas meter connection is used to transport natural and propane gas in residential applications, gas meter connectors including GALVANIZED METER UNION, gas meter swivels, swivel nuts, insulated unions ,BSCA20, Offset insulated etc. We understand the critical nature of meter connections and we recognize the need for safe and reliable connections that can be used in a variety of meter connection application. We also can produced according to customer’s requirement, if you have your special requirement, welcome contact with us. Sample or drawing both are ok for us to open the new mould for you.

Steam coupling


Ground joint complete seal hose fitting is made of plated iron and connects a high-pressure air and steam hose to a male NPT threaded connection. It has a barbed end to create a tight seal on a hose when used with a hose clamp or crimp sleeve or ferrule (not included) and a female National Pipe Taper (NPT) threads on the other to connect to male NPT threaded connections. This fitting is made of plated iron for strength, malleability, ductility, and resistance to corrosion, and it has a polymer seat for chemical resistance. This Boss ground joint complete seal hose fitting is recommended for steam service up to 450 degrees F.

Valve


We have a professional and experienced team to be sure the quality of the product. For the valve before shipment will check one by one by the QC department. Our products have precise sized, better mechanical behavior and tightness, and used widely in the pipe linkage of gas, water, electricity and oil. If you have your own design or sample, we also can produce according to that.

Stainless steel pipe fittings


1.Stainless steel fittings including 90° Elbows,90° Street Elbows,45° Elbows,Cross,Tee,Unions,Hexagon Caps,Hexagon Bushings,Hexagon Plugs,Sockets,Tank Sockets,Reducing Sockets,Hexagon Nipples,Reducing Hexagon Nipples,Barrel Nipples,Pipe Nipples,Hexagon Weld Nipples,Backing Nut,Tube Nipples etc. We have a variety of processing equipments, such as CNC lathe, drilling machine, milling machine, stampling machine, hydraulic press, injuction molding machine, welding machine ect. We using quality material and sophisticated machines, our range of butt-weld fittings is known for its high quality, zero-defects and superior performance. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. Our professionals ensure the offered products to be qualitative in compliance with the globally accepted quality norms. To assure it, each product is strictly manufactured by following the suggestions given by our R&D team and further stringently checked in our quality-testing unit.

Explosin-proog pipe unions


1.Union flexible joints also called flexible joint, rubber expansion joint, rubber flexible joint, pipe expansion joint, soft rubber joint etc. The product can endure high pressure, maintain good elasticity, have large displacement to balance pipe deviation, absorb vibration and make less noise and have easy installation, etc. Which can used for both suction and delivery (discharge) due to its excellent stability and pressure with standability. Its bursting pressure is anytime above 550psi and can be comfortably used within a normal internal pressure of 225psi. Which are widely used in piping and equipment systems to prevent vibration, noise, thermal expansion and contraction and stress fluctuations. Besides they are also widely used in the pipe system of water supply, drainage, circulating water, HVAC, fire protection, paper making, pharmacy, petroleum chemical industry, ship piping system, water pump, compressor and fan etc. The normal type is used to transport air ranges from - 15 °C to 115 °C, compressed air, water, sea water, oil, acid and alkali etc. The special type is used to transport the media above ranges from - 30 °C to 250 °C above, oil or strong alkali, strong acid and solid material.

Fast coupling


1.Fast couplings which we mainly produced are departed the socked, nut, and clamps etc. All the standard specifies are produced according to the drawing design. Generally speaking, all dimensions are accurate, because it is very important to assemble. For all the socket before shipped we all make 100% air pressure testing. The surface are hot dip galvanized and black, we also export the rough product.

NEW

PRODUCTS


41 Bend 90,male and femal

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

85 Crossover

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

90R elbow 90°,reducing

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

92 Street Elbow,90°

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

90 Elbow 90°

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

97 Union elbow M&F flat seat without gasket

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

120 Elbow 45°

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

121 Street elbow,45

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

130 Tee

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

130R-reducing-tee

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

165-Lateral-Y-branch-45°

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

180-cross

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

223-side-outlet-tee

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

246-RED-F&M-coupling

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

270-socket-parallel-threads-equal

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

280-Hexagon-Nipple,-equal

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

290-plug-beaded

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

300-hexagon-cap

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

529 extension-long-piece

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’

321

Material: ASTM A 197,ASTM A47, DIN EN 1562
Dimensions: DIN EN 10242
Threads: IS07-1,DIN 2999
Size Available: 1/8’’—6’’
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DONGHUAN INTRODUCTION

Shijiazhuang Donghuan malleable iron technology co.,ltd

Our factory covers an area of 12,000 m2, with the annual output more than 4000 metric tons, it has the staff more than 200 people, and the professional technician people are more than 40 people. Products go through casting, annealing, shot blasting, galvanizing, threading, air pressure testing,thread inspection and final package procedure. Our factory are the first to use the electric stove for castings and electric facility in annealing and galvanizing process, besides we had improved the equipments ,used to yellow shells ,which has no pollution and easy to control the material composition. With advanced technology and equipment, the products are of excellent material, in good finish with well mechanical property and tightness and good interchangeability which make it easy to be assembled.

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CORPORATE CULTURE


Through these values, cultural concepts and codes of conduct, our factory is committed to becoming a leader in pipe fittings enterprises and winning the trust and support of customers.

Customer First

Teamwork

Continuous innovation

Integrity and integrity

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A pipe fitting manufacturing enterprise with over 30 years of history

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North of beizhu village, donghoufang township, wuji county, shijiazhuang, hebei, China

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