Duplex Stainless Steel Globe Valves
We
are India's one of the most reputed manufacturers and suppliers
of Duplex stainless steel Globe Valves. Duplex steel Globe valves
is a linear motion valve and are designed primarily to stop, start
and regulate the through flow. The mechanism of the disk of a DSS
Globe valve can be totally removed from the flow path or
it can completely close the flow path
Conventional duplex steel globe valves can be used for isolation and throttling services. Although these type of valves exhibit slightly higher pressure drops than straight through valves (e.g., DSS gate valve, plug valve, ball valves etc.), they may be used where the pressure drop through the valve is not a controlling factor to be concern.
The practical size limit for these duplex steel globe valves is NPS 12 (DN 300), because the entire system pressure exerted on the disc is transferred to the valve stem portion, Duplex Steel Globe valves larger than NPS 12 (DN 300) are an exception rather than the rule. Larger valves would require that enormous forces be exerted on the stem to open or close the valve under pressure. Although we have manufactured and supplied up to NPS 48 (DN 1200) size Duplex Stainless Steel Globe valves have been used and it worked properly at the project sight.
DSS Globe valves are extensively employed to control flow. We have method of considering the range of flow control, pressure drop, and duty while the designing of these metal Globe valve in our manufacturing manual to avoid premature failure and to assure satisfactory service to end user. Since all pressure ultimately goes to the trim and stem portion, we give more emphasizes more specially on valve trim designed of the valves, subjected to high-differential pressure-throttling service.
Generally the maximum differential pressure across the valve disc should not be exceeding 20 percent of the maximum upstream pressure or 200 psi (1380 kPa) whichever is less to avert premature failure and to make sure value for money to end user of these valves. Duplex stainless steel Globe Valves with special trim can be designed and manufactured by us for applications exceeding these differential pressure limits.
We can part these DSS globe valves in to three different types with co relating to its primary body designs.
Duplex Stainless Steel Globe Valves
Features
- Duplex Stainless Steel Globe Valves are Higher strength leading to weight saving
- Duplex Stainless Steel Globe Valves are greater corrosion resistance especially in stress corrosion cracking
- Duplex Stainless Steel Globe Valves are comparitively lower in price.
Duplex Stainless Steel Globe Valves
Type : Tee Pattern or Z-body
Tee
Pattern or Z body Duplex Steel Globe valves manufactured and supplied
by us are the common body type in Globe valves, with a typical Z-shaped
diaphragm. In this type of valves, the horizontal setting of the seat
allows the stem and disk components to travel perpendicular to the
horizontal line. This designed valve has the lowest coefficient of
flow and higher pressure drop. These type of valves are used in severe
throttling services, such as in bypass pipe lines around a control
valve. Duplex steel Tee-pattern Globe valves can be used in applications
where pressure drop is not a matter of concern and throttling is required.
With The help of this side image we can understand the design
of Tee Pattern Globe valve and it's components with it's
working mechanism.
1. Body
2. Bonnet
3. Stem
4. Disk
5. Seat
6.Handwheel
Duplex Stainless Steel Globe Valves
Type : Angle Pattern
Duplex
steel angle pattern Globe valves design manufactured and supplied
by us are an modification of the basic Tee Pattern Duplex steel Globe
valves. We have designed the ends of this DSS Globe valve at an angle
of 90 degrees, and fluid flow occurs with a single 90 degrees turn.
These valves have a slightly lower coefficient of flow than wye-pattern
Duplex steel Globe valves. Our these valves can be used in applications
that have periods of pulsating flow because of their capability to
handle the slugging effect of this type of flow.
With
The help of this side image we can understand the Design of
Angle Pattern Globe valve and it's components with it's working
mechanism.
1. Body
2. Bonnet
3. Stem
4. Disk
5. Seat
6.Handwheel
Duplex Stainless Steel Globe Valves
Type : Wye Pattern or Y-body
Duplex
steel Wye pattern Globe valves design and manufactured by Neev Valves
are an best possible solution for the high pressure drop, inherent
in Globe valve series. This type of Globe valves gives a straighter
flow path at full opening and offer the least resistance to flow because
the seat and stem are designed to angle at approximately 45 degrees,.
These valves can be cracked open for long periods without severe erosion.
These globe valves are extensively used for throttling during seasonal
or startup operations. The advantage of these type of valves is that
it can be rod through to remove debris when used in drain lines that
are normally closed.
With
The help of this side image we can understand the Design of
Angle Pattern Globe valve and it's components with it's working
mechanism.
1. Body
2. Bonnet
3. Stem
4. Disk
5. Seat
6.Handwheel
Duplex Stainless Steel Globe Valve
Type of End Connection :-
- Flanged End Raised Face
- Butt Weld End
- RTJ Flanged End
Duplex Stainless Steel Globe Valve Grade Options
These all duplex steel globe valves body are manufactured by casting process and other components are manufactured from solid bars..
ASTM A8901A/A995 3A CD4MCu Duplex Stainless Steel Globe Valves
ASTM A890/A9951B CD4MCuN Duplex Stainless Steel Globe Valves
ASTM A890/A995 2A CE8MN Duplex Stainless Steel Globe Valves
ASTM A890/A995 4A CD3MN Duplex Stainless Steel Globe Valves
Duplex Stainless Steel Globe Valve
Size Range :- 1/2" NB to 72" NB
Duplex Stainless Steel Globe Valve
Pressure Range :- 150#, 300#, 600#, 800#, 900#, 1500#, 2500#
Duplex Stainless Steel Globe Valve
Design Standard :-
- As per API 600 for size up to 24" NB
- As per BS 1414 for size above 24" NB
Duplex Stainless Steel Globe Valve
Testing Standard :-
- As per API 598
- As per BS EN 12266-1
Duplex Stainless Steel Globe Valve
Face to Face Dimensions :-
- As per ASME B 16.10
Duplex Stainless Steel Globe Valve
End Connection Dimensional Standard :-
- Flanged End As per - ASME B 16.5
- Butt Weld End As per – ASME B 16.25
Duplex Stainless Steel Globe Valve
Pressure – Temperature :-
- Chart As per ASME B 16.34
Duplex Stainless Steel Globe Valve Dimensional Specifications
These all duplex steel globe valves body are manufactured by casting process and other components are manufactured from solid bars..
- ASTM A8901A/A995 3A CD4MCu Duplex Stainless Steel Globe Valves Series ANSI 150
- ASTM A890/A9951B CD4MCuN Duplex Stainless Steel Globe Valves Series ANSI 150
- ASTM A890/A995 2A CE8MN Duplex Stainless Steel Globe Valves Series ANSI 150
- ASTM A890/A995 4A CD3MN Duplex Stainless Steel Globe Valves Series ANSI 150
- ASTM A8901A/A995 3A CD4MCu Duplex Stainless Steel Globe Valves Series ANSI 300
- ASTM A890/A9951B CD4MCuN Duplex Stainless Steel Globe Valves Series ANSI 300
- ASTM A890/A995 2A CE8MN Duplex Stainless Steel Globe Valves Series ANSI 300
- ASTM A890/A995 4A CD3MN Duplex Stainless Steel Globe Valves Series ANSI 300
- ASTM A8901A/A995 3A CD4MCu Duplex Stainless Steel Globe Valves Series ANSI 600
- ASTM A890/A9951B CD4MCuN Duplex Stainless Steel Globe Valves Series ANSI 600
- ASTM A890/A995 2A CE8MN Duplex Stainless Steel Globe Valves Series ANSI 600
- ASTM A890/A995 4A CD3MN Duplex Stainless Steel Globe Valves Series ANSI 600
Duplex Stainless Steel Globe Valve
Operating Systems :-
- Wheel Operated
- Gear Operated
- Electrical Actuator Operated
- Pneumatic Operated
- Hydraulic Operated
Applications of Duplex Stainless Steel Globe valves
The following are some of the typical applications of Globe valves
from the design part of view.:
Turbine seals and drains
Turbine lube oil system or applications
Systems where flow needs to be regulated
Fuel oil system where flow is regulated and leak tightness is of importance
Chemical feed, condenser air extraction, and extraction drain applications.
High-point vents and low-point drains applications when leak tightness
and safety is a concern.
Boiler vents and drains, main steam vents and drains, and heater drains
Duplex Stainless Steel Globe Valves
Test procedures :-
All our fittings are 100% carefully inspected through series of dedicate testing procedures, including:
- Material verification of Duplex Stainless Steel Globe Valves
- Dimension check such as tolerance, lobing, out-of-roundness, length, straightness of Duplex Stainless Steel Globe Valves
- Duplex Stainless Steel Globe Valves threading roughness inspection
- Final Mechanical Properties of Duplex Stainless Steel Globe Valves if required or are suppose to be changed by manufacturing operation.
- Overall quality inspection (Includes eddy current (non-destructive) electric testing.)
Packaging of Duplex Stainless Steel Globe Valves
All finished Duplex Stainless Steel Globe Valves are packed to suit the special conditions for international deliveries and can also customized as per customer's specific requirements.
Documentation of Duplex Stainless Steel Globe Valves
Our Duplex Stainless Steel Globe Valves products are accompanied by
certified material test report 3.1 as per DIN EN 10204 / ASTM A1016.
Pre material certification can be provided upon request.
We are 100 percent confident on our quality of Duplex steel Gate
Valves and that is why we are open to accept orders for the same with
any third party inspection certifications.
Our Duplex steel Globe valves are manufactured with state of the art facility and with strict quality check norms and that is why these valves are acceptable across all industrial sectors.
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Oil & Gas Industries |
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Nuclear Power Projects |
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Petroleum Refineries |
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Hydro Power Projects |
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Chemical Industries |
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Pharmaceutical Industries |
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Offshore Industries |
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Process Industries |
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Pipe Line Projects |
Marine Industries |
Please select the best suitable Duplex Steel Globe Valves from our wide range of globe valves
Countries where Neev Valves can supply Duplex Steel Globe Valves
Neev Valves Welcomes Distributors for Duplex Steel Globe Valves
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Note : Information provided on this web site about
"Duplex Stainless Steel Globe Valves" is for general information
purposes only and subject to alteration without notice, we do not
accept responsibility for errors or for information which is found
to be misleading. Suggestions for or descriptions of the end use or
application of Duplex Stainless Steel Globe Valves
or methods of working are for information only and the company accept
no liability in respect thereof.
Before ordering Duplex Stainless Steel Globe Valves
supplied or manufactured by us, customers should satisfy themselves
of their suitability.
