V·CART PIPING SYSTEMS, registered in

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 China and America.

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

China National Standard .

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 China

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 Ring-type PE Pipe Connections

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 China. online contact is realized among distribution centers, chain distributors 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