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Hopewell press fitting system joins pipe without welding or bolting, can be widely used in cold and hot water supply, heating supply, fire protection, medicinal gas, industrial petroleum pipeline system etc. It has already replaced welding fittings in most Europe countries, Asia countries, America, Australia and some other countries.Â
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Standard:
Press fitting standard: GB/T 19228.1-2003, DVGW W534-1995 and JWWA G116
Pipe standard: GB/T 19228.2-2003, BS EN 10312 and JIS G3448
Sealing ring standard: GBT 19228.3-2003, EN681-1:1998
Technical information:
-- Material: Stainless steel 304 and 316 available.
-- Max working pressure 1.6MPa (equal to 232 psi),
testing water pressure: 2.5MPa for JIS sizes (equal to 362.5psi), and 5MPa for EN10312 sizes.
-- Working temperature from -20 to 110 degree centigrade (with Chlorinated butyl rubber O ring),
-- Suit medium: cold water, hot water, compressed air, gas, oil etc
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Press fitting range:
Coupling -- Equal coupling, Reducing coupling, Adjustable coupling, coupling with screw;
Elbow -- equal elbow, reducing elbow, elbow with plain end, elbow with screw;Â
Tee -- equal tee, reducing tee, tee with screw;
Other fittings -- Pipe cap, pipe bridge and Flange.
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Sizes range:
The norminal diameters are: DN15, 20, 25, 32, 40, 50, 65, 80 and DN100, including GB 1 and GB 2.
GB 1 series is same size as EN10312, out diameters are: 18, 22, 28, 35, 42, 54, 76.1, 88.9, 108mm.
GB 2 series is same size as JIS G 3448, out diameters are: 15.88, 22.22, 28.58, 34.00, 42.7, 48.6, 76.1, 88.9, 108mm.
Which sizes is suitable for your market?
GB1(EN10312) | GB2Â (JIS G3448) | ||||||
Item No. | Nominal Dia. | Diameter | Thick | Item No. | Nominal Dia. | Diameter | Thick |
HW015B | DN15 | 18 | 1 | HW015A | DN15 | 15.88 | 0.8 |
HW020B | DN20 | 22 | 1.2 | HW020A | DN20 | 22.22 | 1 |
HW025B | DN25 | 28 | 1.2 | HW025A | DN25 | 28.58 | 1 |
HW032B | DN32 | 35 | 1.5 | HW032A | DN32 | 34 | 1.2 |
HW040B | DN40 | 42 | 1.5 | HW040A | DN40 | 42.7 | 1.2 |
HW050B | DN50 | 54 | 1.5 | HW050A | DN50 | 48.6 | 1.2 |
HW065B | DN65 | 76.1 | 2 | HW065B | DN65 | 76.1 | 2 |
HW080B | DN80 | 88.9 | 2 | HW080B | DN80 | 88.9 | 2 |
HW100B | DN100 | 108 | 2 | HW100B | DN100 | 108 | 2 |
Note | Standard pipe length is 6m. Other lengths and specifications can be customized according to correspondents' needs. |
Sealing ring material:
Option 1. CIIR(Chlorinated butyl rubber):Â Sanitary for human consumption, not oil resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air.
Option 2. EPDM(Ethylene-Propylene-Diene Monomer) :Â Sanitary for human consumer, not oil resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air and compressed gas.
Option 3: FKM(Fluororubber):Â It is both oil proof and sanitary. suitable for edible oil, compressed air. But a little more expensive than CIIR, EPDM and NBR.
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What application purpose do you want to use the press fit pipeline system? Which O-ring Material do you prefer?
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Advantages of Press Fitting Pipeline:
(1). Corrosion-resistant
(2). Easy Installation
(3). Load High Working Pressure(1.6MPa / 232PSI)
(4). Shock Resistant
(5). Suitable for In-wall Installation
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Installation case example:


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Packaging & Shipping
For press fittings packing:Â we pack press fittings in polybag to prevent surface scratch, and then pack them inside brown export cartons.
For pipe packing:Â we pack the stainless steel pipes inside polybag, so that it can prevent surface scratch, and keep dirts away from the inside of the pipes.
If you have special requirement on packing, please tell us.
Our Services
* Free sample:Â we can provide a few free sample for evaluation.
* After-sales service:Â we provide after-sales technical support for clients.
* Strict Quality control:Â we have 100% inspection before delivery to ensure every pieces are in good quality.
Below you can see pictures of our inspection line:
Company Information
We are an ISO certified professional manufaturer supplying stainless steel press fittings and pipes.
We have the following certificates:Â
ISO9001:2008 certification,Â
Brunei approval certificate;Â
Test report from China Building Material National Research CenterÂ
Hong Kong approval certificate;Â
Sanitary certificate from China government;Â
SGS witness report;Â
Singapore Setsco test certificate;Â
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Company and production line view:

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Please contact us for free sample and pricelist. Stainless Steel Press Fitting Pipe System
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Hopewell press fitting system joins pipe without welding or bolting, can be widely used in cold and hot water supply, heating supply, fire protection, medicinal gas, industrial petroleum pipeline system etc. It has already replaced welding fittings in most Europe countries, Asia countries, America, Australia and some other countries.Â
Â
Standard:
Press fitting standard: GB/T 19228.1-2003, DVGW W534-1995 and JWWA G116
Pipe standard: GB/T 19228.2-2003, BS EN 10312 and JIS G3448
Sealing ring standard: GBT 19228.3-2003, EN681-1:1998
Technical information:
-- Material: Stainless steel 304 and 316 available.
-- Max working pressure 1.6MPa (equal to 232 psi),
testing water pressure: 2.5MPa for JIS sizes (equal to 362.5psi), and 5MPa for EN10312 sizes.
-- Working temperature from -20 to 110 degree centigrade (with Chlorinated butyl rubber O ring),
-- Suit medium: cold water, hot water, compressed air, gas, oil etc
Â
Press fitting range:
Coupling -- Equal coupling, Reducing coupling, Adjustable coupling, coupling with screw;
Elbow -- equal elbow, reducing elbow, elbow with plain end, elbow with screw;Â
Tee -- equal tee, reducing tee, tee with screw;
Other fittings -- Pipe cap, pipe bridge and Flange.
 Â
Sizes range:
The norminal diameters are: DN15, 20, 25, 32, 40, 50, 65, 80 and DN100, including GB 1 and GB 2.
GB 1 series is same size as EN10312, out diameters are: 18, 22, 28, 35, 42, 54, 76.1, 88.9, 108mm.
GB 2 series is same size as JIS G 3448, out diameters are: 15.88, 22.22, 28.58, 34.00, 42.7, 48.6, 76.1, 88.9, 108mm.
Which sizes is suitable for your market?
GB1(EN10312) | GB2Â (JIS G3448) | ||||||
Item No. | Nominal Dia. | Diameter | Thick | Item No. | Nominal Dia. | Diameter | Thick |
HW015B | DN15 | 18 | 1 | HW015A | DN15 | 15.88 | 0.8 |
HW020B | DN20 | 22 | 1.2 | HW020A | DN20 | 22.22 | 1 |
HW025B | DN25 | 28 | 1.2 | HW025A | DN25 | 28.58 | 1 |
HW032B | DN32 | 35 | 1.5 | HW032A | DN32 | 34 | 1.2 |
HW040B | DN40 | 42 | 1.5 | HW040A | DN40 | 42.7 | 1.2 |
HW050B | DN50 | 54 | 1.5 | HW050A | DN50 | 48.6 | 1.2 |
HW065B | DN65 | 76.1 | 2 | HW065B | DN65 | 76.1 | 2 |
HW080B | DN80 | 88.9 | 2 | HW080B | DN80 | 88.9 | 2 |
HW100B | DN100 | 108 | 2 | HW100B | DN100 | 108 | 2 |
Note | Standard pipe length is 6m. Other lengths and specifications can be customized according to correspondents' needs. |
Sealing ring material:
Option 1. CIIR(Chlorinated butyl rubber):Â Sanitary for human consumption, not oil resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air.
Option 2. EPDM(Ethylene-Propylene-Diene Monomer) :Â Sanitary for human consumer, not oil resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air and compressed gas.
Option 3: FKM(Fluororubber):Â It is both oil proof and sanitary. suitable for edible oil, compressed air. But a little more expensive than CIIR, EPDM and NBR.
Â
What application purpose do you want to use the press fit pipeline system? Which O-ring Material do you prefer?
Â
Â
Advantages of Press Fitting Pipeline:
(1). Corrosion-resistant
(2). Easy Installation
(3). Load High Working Pressure(1.6MPa / 232PSI)
(4). Shock Resistant
(5). Suitable for In-wall Installation
Â
Installation case example:


Â
Packaging & Shipping
For press fittings packing:Â we pack press fittings in polybag to prevent surface scratch, and then pack them inside brown export cartons.
For pipe packing:Â we pack the stainless steel pipes inside polybag, so that it can prevent surface scratch, and keep dirts away from the inside of the pipes.
If you have special requirement on packing, please tell us.
Our Services
* Free sample:Â we can provide a few free sample for evaluation.
* After-sales service:Â we provide after-sales technical support for clients.
* Strict Quality control:Â we have 100% inspection before delivery to ensure every pieces are in good quality.
Below you can see pictures of our inspection line:
Company Information
We are an ISO certified professional manufaturer supplying stainless steel press fittings and pipes.
We have the following certificates:Â
ISO9001:2008 certification,Â
Brunei approval certificate;Â
Test report from China Building Material National Research CenterÂ
Hong Kong approval certificate;Â
Sanitary certificate from China government;Â
SGS witness report;Â
Singapore Setsco test certificate;Â
Â

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Company and production line view:

Â
Please contact us for free sample and pricelist.
what is the Pipe Fan?
Pipe fan selection control parameters for the air volume, total pressure, efficiency, noise, motor power and so on. Depending on the physical and chemical properties of the gas being transported, fans of different uses are selected.
Features
1. Pipe fan selection control parameters for the air volume, total pressure, efficiency, noise, motor power and so on.
2. According to the physical and chemical properties of the gas being transported, select the fan for different purposes. Such as the delivery of clean air, should choose a general fan; transport flammable and explosive gases, explosion-proof fan should be selected; corrosive gas transmission, corrosion-resistant fan should be used.
3. Ventilator selection, should consider the leakage of piping system losses, calculation errors, and the actual fan fan, the negative pressure deviation, the general use of air flow 1.05 ~ 1.1, wind pressure of 1.10 to 1.15 safety factor. However, it is neither too large nor too large to prevent the fan from operating in an area of low efficiency for a long time.
4. Pay attention to the matching characteristics of the pipe network resistance characteristics and fan characteristics. In order for the ventilator to operate stably, the ventilator should be operated near its maximum efficiency point. The operating point of the ventilator is located on the right side of the full pressure peak point in the performance curve (ie, on the gales side and generally at 80% of the full pressure peak) ).
5. For ventilation systems with muffler requirements, fans with high efficiency and low impeller circumferential speed should be selected first and operate near the highest efficiency point. Should also be based on the ventilation system noise and vibration propagation, take the appropriate noise reduction and damping measures.
6. Pipe fan is through the blade shape changes, the air flow into the fan, the existing part of the axial flow, but also produce part of the centrifugal effect, so its performance is between the axial flow fan and Centrifugal Fan.
7. Piping ventilator can provide medium pressure and moderate air flow, ventilation system used in high-rise civil buildings are more appropriate.
Installation points
1. Fan mounting pedestal (base, hanger) should have sufficient strength, stability and durability, pedestal vibration should meet the following requirements:
1) The natural frequency of the basic device shall not be greater than 1/3 of the motor and fan speed;
2) The difference between the vibration speed when the ventilator is running and the vibration speed when the ventilator is stationary should be more than 3 times.
2. Ventilator inlet and outlet connections between the duct should be set flexible joints. Into the air duct, air duct and other devices should be a separate support, and by the foundation or other components of the firm support firm, the chassis should not bear the weight of other parts.
3. Fan installed in the building components, should take measures to isolate vibration.
4. Fan installation can refer to the following national building standard design atlas.
5. Pipe fan can be installed in the straight pipe, with easy to take over, taking up the advantages of smaller space.
Pipe Fan
Pipe Fan,Small Pipe Fan,Plastic Pipe Fan,Pipe Exhaust Fan
Shenzhen Fu Sheng Electric Co., LTD. , http://www.fushengfan.com