Product Details
DN25-DN3000 Concentric Rubber Expansion Joint with Equal Nominal
Diameter Range Options
The eccentric reducer rubber expansion joint with a straight lower
edge structure completely eliminates
the liquid accumulation dead zone at the concentric reducer,
reducing fluid kinetic energy loss. The rubber
layer flexibly extends and contracts under pressure fluctuations,
preventing additional pressure loss caused
by vibration in rigid pipe sections.
choose the products of ZHICHENG ?
1.24 hours online service-- anytime, anywhere can provide what you
want.
2.100% quality inspection before shippment.
3.Strong production capability and strict quality control.
Product Description
Rubber expansion joints consist of inner and outer rubber, cord
layer and steel wire strand, which are vulcanized and then
combined with metal flanges or loose sleeves of parallel joints. It
is widely used in various pipeline systems.
No | Name | Material |
1 | Outer/inner rubber | NR, EPDM, NBR, Neoprene etc. |
2 | Frame | Nylon cord fabric |
3 | Pressurized ring | Steel wire strand |
4 | Flange | Carbon steel galvanized, paint ductile iron, stainless steel etc. |
Operation condition |
Working temperature | -15℃~80℃(-30℃~150℃) |
Working pressure | 6-40bars(PN6-PN40) |
Test pressure | 1.5 times of working pressure |
Explosion pressure | 2 times of working pressure |
Applicable media | Air, water, sewage, sea water, acid, alkali, oil etc. |
Main connection dimension |
Nominal diameter | Length (mm) | Axial displacement | Horizontal movement (mm) | Deflection angle (a1+a2)° | Special length (mm) |
mm | inch | Compression (mm) | Extension (mm) |
32 | 1 1/4 | 95 | 9 | 6 | 9 | 15° | 130/150/200 |
40 | 1 1/2 | 95 | 10 | 6 | 9 | 15° | 130/150/200 |
50 | 2 | 105 | 10 | 7 | 10 | 15° | 130/150/200 |
65 | 2 1/2 | 115 | 13 | 7 | 11 | 15° | 130/150/200 |
80 | 3 | 135 | 15 | 8 | 12 | 15° | 130/150/200 |
100 | 4 | 150 | 19 | 10 | 13 | 15° | 130/200 |
125 | 5 | 165 | 19 | 12 | 13 | 15° | 130/150/200 |
150 | 6 | 180 | 20 | 12 | 14 | 15° | 130/150/200 |
200 | 8 | 210 | 25 | 16 | 22 | 15° | 130/150/200 |
250 | 10 | 230 | 25 | 16 | 22 | 15° | 130/150/200 |
300 | 12 | 245 | 25 | 16 | 22 | 15° | 130/150/200 |
350 | 14 | 255 | 25 | 16 | 22 | 15° | 130/150/200 |
400 | 16 | 255 | 25 | 16 | 22 | 15° | 130/150/200 |
450 | 18 | 255 | 25 | 16 | 22 | 15° | 200 |
500 | 20 | 255 | 25 | 16 | 22 | 15° | 200 |
600 | 24 | 260 | 25 | 16 | 22 | 15° | 300 |
( Note: Size range from DN25-3000 are all available, special size
and length can also be customizedplease contact us
for exact data.
The rubber expansion joints allow for four way movements, and they
are molded from synthetic rubber and nylon cord,
and this can reduce vibration and noise, and compensate thermal
expansion and contraction caused by temperature change.
Production
ZHICHENG has a strict quality control system, the standard
production process, standardized factory testing means to
ensure that every product to meet the customer requirements, and
provide customers with high-quality products.
Packaging & Shipping
Packaging | 1.Inner package: plastic film with carton cases. 2.Outer package: wooden cases(usually the size of
1100mm*1100mm*1100mm). |
Product installation
When the customer installs, we will provide installation
instructions, installation notes and maintenance instructions. and
this is the installation picture of the DN1800 rubber expansion
joint.
Company Information
Pls click here to contact us for more details about the products.
we will try our best to provide you with quality service and
products.
FAQ
Q: Are you a trading company or a manufacturer?
A: We are manufacturers of rubber expansion joints, metal expansion
joints, flexible hoses, dismantling joints,
trimmer joints, flange adapters and flanges with over 30 years
experience.
Q: Do you have a catalogue?
A: Yes, we do. Please let me know your email or instant messenger
and we will send you our catalogue.
Q: Can you provide drawings and technical information?
A: Yes, our specialist technical department will design and supply
drawings and technical data.
Q: Do you provide samples? Are they free of charge or do you charge
for them?
A: Yes, we can provide samples free of charge, but transport costs
are borne by the customer.
Q: Can the products be manufactured to the customer's requirements?
A: Yes, the above specifications are standard specifications and we
can design and manufacture as required.
Contact us for more details about price and packing, shipping and
discount now!
Company Profile
Company Profile: Zhicheng Valve & Fitting Manufacturing Co.,
Ltd.
Overview
Zhicheng Valve & Fitting Manufacturing Co., Ltd. is a leading
manufacturer specializing in the production of
high-quality valves and fittings. Since our establishment, we have
been dedicated to delivering superior products
and exceptional services to our clients globally. Equipped with
advanced manufacturing facilities and a team of
experienced professionals, we cater to diverse needs across various
industries.

Product Range
Our product portfolio includes a wide variety of valves, fittings,
and related accessories. These products are extensively
used in sectors such as oil and gas, petrochemical, power
generation, metallurgy, and water treatment. We emphasize
strict quality control at every stage of production, from material
selection to final inspection, ensuring that our products
meet international standards for reliability and durability.

Commitment to Quality
At Zhicheng, we prioritize quality above all. Our manufacturing
processes are designed to uphold the highest standards,
ensuring that our products consistently meet and exceed customer
expectations. We are committed to continuous
improvement and innovation, striving to enhance our product
offerings and technological capabilities.

Customer-Centric Approach
With a business philosophy centered on "Quality First, Customer
Foremost," we aim to build long-lasting relationships
with our clients. We offer comprehensive technical support and
tailored solutions to meet specific project requirements.
Our professional team is dedicated to providing timely and
efficient service, ensuring complete customer satisfaction.

Vision and Mission
Zhicheng Valve & Fitting Manufacturing Co., Ltd. aspires to be
a global leader in the valve and fitting industry. Our mission
is to create value for our customers through innovative products
and exceptional service. We are committed to sustainability
and ethical business practices, contributing to a better future for
our industry and the communities we serve.

Contact Us
We welcome clients from around the world to visit our facilities,
engage in business discussions,
and explore potential partnerships. At Zhicheng, we look forward to
collaborating with you to
achieve mutual success.
---
For further information or inquiries, please contact:
Zhicheng Valve & Fitting Manufacturing Co., Ltd.
[Company Address]
Pipeline Industrial Park, Xicun Town, Gongyi City, Henan Province,
China
Phone: +8618697313619
Email: 315347056@qq.com
We are eager to connect and provide you with the best solutions for
your valve and fitting needs.