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Qingdao Free Trade Zone, is a quality
oriented manufacturer of grooved pipe
fittings and piping equipment. The
manufacturing is carried out according to
International Standards. With chain sale and
chain follow-up service, goods distribution
centers are set both in
V· CART PIPING SYSTEMS has in
House computer design and development
using AutoCAD and Solidworks to develop
and design new products. Primary products
include ductile iron pipe fittings with
diameter range from 20mm (0.78") to
1000mm (40.0"), stainless steel and red
copper piping fittings with diameter range
from 10mm (0.78") to 219mm (8.6"). The
company holds certain patents for products
designed and manufactured in our own
facilities. Design and testing for ductile iron
pipe fittings are in compliance with
American Standard ANSI/AWWA and satisfy
Test for fire protection systems is according
to UL213 and satisfies the Sprinkler
Systems Installation Standard NFPA13 of
American National Fire Protection Standard.
metal and sealing materials are in
compliance with American Standard
GB5135.11
ASTM.
AQL test is in compliance with American a
Test Standard ANSI MIL-STD-105. Oil and
natural gas piping fittings meet American
Petroleum Association Standard API 5L.
V· CART PIPING SYSTEMS p
systems meet American Standard
ANSI/NSF 61. imported resin powder is
used as the inside plastic coating material
which ensures the products meet
National Hygiene Standard GB/T17219.
Copper fittings for p satisfy
European Standard EN1057.
V·CART PIPING SYSTEMS has 10-year
export experience and flawless quality
control management has always been
being strictly carried out in the whole
process which is also in compliance with
ISO 9001 Quality Systems from designing,
raw materials procurement, manufacturing
and marketing to follow-up service. Limited
element analysis is adopted in the
mechanics design which could save
materials and resources as well.
Dimensional precision of couplings is
ensured under mass production by using
cast ductile iron and high pressure in
moulding. Materials for gaskets are
imported from American Dupont Company.
The formula is patented by V· CART,
covering mechanical properties (tension,
elasticity, elastic renewal ability, pressure
change and low temperature shock) and
anti-aged property required by American
Standard ASTM D2000
Through nti-aged
test (imitating 50 years aging process,
oxygen filling, ultraviolet ray exposure and
low temperature shocking) the change of
the entire mechanical properties meets
international standard and ensures the
sealing system could be used safely for 50
years under various conditions.
V· CART PIPING SYSTEMS p
piping fittings and systems of red
copper and stainless steel series are
manufactured according to V· CART
proprietary technology. imported materials
are adopted to meet the European and
American Standard.
V·CART PIPING SYSTEMS is equipped
with supporting working tools. Being
convenient, effective and durable in
installation and at a reasonable price, they
are widely used by millions of customers.
V· CART PIPING SYSTEMS has FM
approval and UL certification. There are
also relevant certificates for new developed
products related to piping systems, such as
valves and water pumps.
V·CART PIPING SYSTEMS follows the
new ideal of innovation, rigor and honesty.
We will satisfy our clients by our warm
service and accomplish our feats through
high quality.
APPLICATIONS
Sanitary water
Fuel Supply
Fire protection
Heating ventilation and air conditioning (HVAC)
Manufacturing
Gas transmission
Mining
Tunnels
Shipbuilding
High quality is what has V·CART always been pursuing.
Grooved pipe fittings, concerning the safety of the
whole pipeline system and other related system,
should be regarded as the most important
composition part of a piping system. We deeply know
a single quality defect can paralyze the whole system
and even cause serious accident. So we make every
effort in pursuit of zero quality defect.
01-04
05-07
08
09
10-40
41
42
43
44
45
Grooved Couplings Manufacturing
Couplings and Fittings Standards
Product Descriptions
Pressure Testing
Product Specifications & Applications
Project Applications
Roll Grooving Dimensions
46
47
48-49
Cut Grooving Dimensions
Dimensions for Single and Double-reverse Grooving Steel Pipe
Dimensions for
Grooving Tools
Hole Cutting Tools
Installation
50-53 Sealing Material Selection
01 AUTO CAD DESIGN
AutoCAD is used to design products and optimize
structures according to Limited Element Analysis
Theory. Possible defect elements are carefully
considered in the manufacturing process and safety factors are
calculated based on real working conditions
CAST PROCESS DESIGN
Product moulds are designed by use of Castsoft CAD
and casting process is designed by use of Castsoft
CAE to imitate the iron liquid casting system, which
ensures the whole system is always under the best condition and
avoids possible casting defects. Moulds are made on CNC equipment
to assure dimensional accuracy
03 strict manufacturer process
Dimensional clearance is guaranteed by correct
Dimensional clearance is guaranteed by correct
choice of casting modes and strict control
throughout the whole manufacturing process. Our products are
manufactured by DISA and Loramendi casting line.
V.CART pipeing system
Has been engaged in exporting OEM products for more than ten
years. We have adopted ERP Electronic Management covering
design, manufacturing, marketing and follow-up service. Our
ultimate products are quality and service.
GROOVED COUPLINGS
MANUFACTURING
04.Quality control of the casting material
Mechanical properties of the materials are
determined by the composition of the casting.
Spectrographic analysis is utilized to ensure the
composition of the iron structure.
Products
05 metal material laboratory
Products from each furnace are manufactured in
strict compliance with quality standard as materials
are given compositional test, metallographic test and
mechanical property test. Each product has a test report and all
reports are stored for more than 20 years according to relative
standards
06 Quatlity trace
Each product is traceable by being marked
with manufacturing date, which is also in
compliance with the test report.
07 APPERANCE
Products are inspected for exterior appearance
for quality.
08 STICT TEST STANDARD
Ul213 Test Standards are strictly enforced Static
pressure strength test and bending tests are
carried out for each specification to ensure that all
piping parts can be used safely under various installation
CONDITIONS
09 STRICT STANDARD FOR SEALING GASKETS PRODUCTION AND MATERIAL
TEST
Sealing gaskets with high mechanical properties are the key to ensure
piping system long term safety.Rubber tests are undertaken in strict
accordance with International Standards
10 PROFESSIonAL TOOL SERIES
Grooving and Drilling Machines are designed for long
service life.
11 QUALITY MANAGEMENT SYSTEM
The enterprise is run completely in compliance with
ISO9001 Management System to ensure every quality
link. International Quality Safety Examination
Standard and Test Standards are strictly adhered to in all processes
from production to follow-up service.
12 ELECTRonIC DISTRIBUTION SYSTEM AND CHAIN MANAGEMENT
ERP electronic management is carried out from production to quality control. There are center warehouses in headquarter
and distribution centers in main cities of
different cities and the company headquarters. Customers can consult the stock and order execution online at any time. And
transportation cost is reduced by the assistant of third-party logistics. Every process from production to marketing is supervised and can be
traceable, which makes the V· CART service becomes an electronic service system.
COUPLINGS AND FITTINGS STANDARDS
COUPLING HOUSING
Coupling Housings are cast of ductile iron to ASTM A 536
Grade 65-45-12 which refers to the 65,000 PSI
(448,110KPa)minimum tensile strength, 45,000 PSI
(310,230KPa) minimum yield strength and 12% minimum
elongation. This compares favorably with A53ERW steel pipe
having minimum tensile of 60,000 PSI(413,640KPa), 35,000
PSI(241,290KPa) yield and 25% elongation.
The housing is designed to provide the optimum combination
of pressure, stress relief and end load conditions while
maintaining reasonable weight and manufacturing
characteristics. Every grooved pipe coupling, be it a flange
adaper, reducing coupling, outlet, rigid or flexible coupling has
a similar key section. This engages fully into the groove tying
the joint integrally to the pipe.
Grooved Couplings
Manufacturing
Couplings and
Fittings
Standards
COATING
COATING MAY BE APPLIED TO CARIOUS COUPLINGS ,FITTINGS AND ACCESSORY PRODUCTS,TO MAINTAIN THE PUBLISHED PERFORMANCE LEVELS WITH RESPECT TO MAXIMUM REATED WORKING PRESSURE AND END LOAD,THE MAXIMM COATING THICKNESS AND OUR COUPLINGS SHOULD BE EXCEED 0.010.IF ADDITIonAL PROTECTION IS RE QUIRED,THE COATING THICKNESS MAYBE INCREASED ON THE XTERNAL SURFACES OF THE COUPLINGS ONLY4 5
、
Gasket
The unique, C-shaped, pressure
responsive gaskets design has been the
heart of the grooved systems since its
inception. Relying on compound
compression set and the initially flared
design, the gasket seals on the
dimension of the pipe O.D This design
accommodates the pipe movement
noted, while sealing under both pressure
and vacuum. The manufacture and test is
to ASTM D2000 quality controlled with
test of hardness strength, strength at
break, elongation at break(normal state),
change in hardness, change in strength
at break, change in elongation at
b r e a k ( h o t a i r a g e i n g ) , a n d l o w
temperature compression set available
rubber compounds now include the
standard gasket EPDM for water(+230℉
/+110℃ )and a nitrile compound gasket
for oil services(to+180℉/+82℃). Special
gaskets include fluoroelastomer,
neoprene, silicone, white nitrile and
epichlorohydrin.
During assembly, the gasket is slightly
stretched over the pipe ends, applying
the natural compression of the angled
lips as well as the resiliency of the entire
gasket body. It is important to note that
grooved coupling gaskets always should
be lubricated on the lips and the outside
back before assembly. Assembly of the
coupling housing over the gasket mates it
closely to the gasket back, fully encasing
the gasket with a backbone of ductile
iron. With the bolt pads fully tightened
Each gasket is traceable
by being marked with manufacturing
date, fomula code and operator's code.
t h i s a d d s
a d d i t i o n a l
c o m p r e s s i v e
force without full
c o m p r e s s i o n ,
l e a v i n g t h e
natural resiliency
a s a n a c t i v e
sealing force within the joint. The full
encasement of the gasket prevents any
extrusion of the rubber under high
pressure.
ANSI/NSF
ANSI/NSF Standard 61 is a National
Standard that was developed to
establish minimum requirements for the
Control of potential adverse human
health effects from products which
contact drinking water. Its primary focus
is on contaminants or impurities which
may be imparted indirectly to PORTABLE WATER
. Please note that material that do
Otable
not come in direct contact with potable
water do not require evaluation. The
sealing material as established by
ANSI/NSF 61 are “ Cold” which is
limited to +86 ℉ (+30℃ )Maximum and
“ hot” which is limited to +230 ℉
(+110℃)Maximum.
Bolts and nuts
The bolts and nuts secure the entire joint together. Unlike flanged
systems, the bolts are not taking the primary load, nor are they
functional in the sealing process. The bolts hold the coupling
housings into the grooves and contain the gaskets. once tightened,
the bolts require no further tightening. There are no torque
specifications for most grooved couplings as with flange bolts. The
plated bolt head is an oval neck track bolt configuration conforming
to openings in the housing bolt pads. This permits tightening the
nuts from one side without a backup wrench.
CONTACT:Luis Lee
email: [email protected]
Tel:86-15066792975
skype:holy01
| The Company | QINGDAO V•CART PIPING SYSTEMS CO.,LTD |
| The contact | Luis |
| The Address | Headquarters Address: No. B9 , 108 area , Trade Building, Qingdao Free Trade Zone. Factory Address: No.18 Yizhou Road ,Nanguan industrial zone , Jiaozhou |
| The Website | https://www.alibobo.com/com/qingda362/ |
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