Volume Boosters, Process Control Systems, Process Control Equipments, Equipments For Automations, Pressure Reducing Systems, Sulpher Burners, Pneumatic Plough For C / F Machines, Super Heated Wash Water Systems, india

Volume Boosters

Manufacturers & Suppliers :

For Sugar Factories,

Power Stations,

Winery Plants, Distillery,

Petrochemical Plants,

Steel Plants

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: VOLUME BOOSTERS :

ASSOCIATED BENEFITS
•	Rigorously proven on-site performance.
•	Minimal inspection and maintenance costs.
•	Low cost of ownership.
•	Assured product Ouality.

VOLUME BOOSTERS are normally used to reproduce pneumatic signals in 1: 1 ratio whenever input isolation or increased flow capacity is required.
These high capacity Volume Boosters, with a fixed minimum deadband. are designed to substantially improve the stroking speeds of large actuators.
Actuators retain their normal slow and stable responses as long as their signal fluctuations remain within the dead band limits that are determined by adjustment of the equalizing/bypass valve within the Booster.

DESIGN FEATURES
•	Built-in adjustable by-pass valve with fine control.
•	Capable of using high pressure plant air supplies.
•	Different Booster sizes available to suit wide range of actuator sizes.
•	Robust parts for trouble free service
•	Main internal air supply valve with soft seat insert
•	Highly corrosion resistant with external stainless steel retaining screws and internal wear parts.
•	Stainless Steel and Aluminium construction available.

PERFORMANCE BENEFITS
•	Low air consumption. soft seat insert gives tight shut-off.
•	Ouick response with increased actuator stroking speeds.
•	Maintains correct actuator positioning at high stroking speeds.
•	Adjustable bypass valve provides good operational sensitivity.
•	High stability which allows normal slow actuator response to the slow signal changes produced by usual process control variations.

GENERAL

The Volume Boosters are normally used to reproduce pneumatic signals in a 1:1 ratio whenever input isolation or increased flow capacity is required. These units can substantially increase the stroking speeds of large actuators while maintaining the normal stable responses, providing the signal fluctuations remain within the levels determined by the dead band limits which are ~djustable, via an equalizing / by pass valve fitted, on both sizes of booster.
The soft seated control valves within the boosters provide the tight shut-off necessary for isolation purposes and ensure the unnecessary consumption of air.

OPERATION

In operation during normally steady state process conditions, with small variations in the controller or positioner signals, the signal input flow to the booster will pass through the integral equalizing/bypass valve and into the actuator. Both booster ports remain tightly shut with the soft seating inserts preventing unnecessary air consumption.With large or faster variations in signal flow, the equalizing / bypass valve setting causes them to be registered sooner on the booster inlet than on its outlet which is connected to the actuator. When the differential pressure obtained exceeds the deadband value of the booster, set by the adjustable equalizing / bypass valve, the diaphragm assembly will move as to open one or other booster port and allow rapid change of pressure within the actuator. When the pressure balance is restored, with the postioner or controller sensing that the corrective action is completed, the booster closes and allows the system to resume normal operation with the actuator being fed via the equalizing/bypass valve flow.

INSTALLATION

For maximum performance with both models of booster these should be fitted as close to the actuator as possible. Where multi-boosters are fitted these should be individually connected into the actuator, with separate connections for optimum performance.Air supplies should be clean and dry. A good quality thread jointing compound should be used on all fittings in preference to PTFE sealing tape, which can migrate into the booster units and cause malfunctions.

Spares : Full spares kits are available for both models of volume booster. Consult factory for details.

Ambient Operating Conditions: 400 C to + 700 C ( - 400 F to + 1600 F )

Volume Booster Sizes: Two Sizes available Model 1000 and Model 3000

Pipe Connections:

	Model 1000	Model 3000
Supply	1/4" NPT (F)	1/2" & 3/4" NPT (F)
Output	1/4" NPT (F)	1/2" & 3/4" NPT (F)
Signal	1/4" NPT (F)	1/4" NPT (F)

Pneumatic Supply Pressure :

Model 1000	Model 3000
100 psig (6.9 bar)	150 psig (10.3 bar)

Operating Supply Gases :
Air, Nitrogen. Options : Methane (Natural Gas)
Filter regulator recommended to ensure clean supply.

Deadband Width : 1 psig (0.7 bar) or 5% of output span, whichever is greater.

Fixed Input/Output Ratio: 1:1

Flow Capacity :
Model 1000 : 10 SCFM Model 3000 : 43 SCFM.

Construction Materials : Aluminium or Stainless Steel versions availbale.

Approximate Weight:

Model 1000	Aluminimum	0.7 kg ( 1.5 lb )
Model 1000	Stainless Steel	2.0 kg ( 4.4 lb )
Model 3000	Aluminimum	2.3 kg ( 5 lb )
Model 3000	Stainless Steel	7.0 kg ( 15.4 lb )

Table 1. Construction Materials Model 1000 Booster.

Item	Description	Materials
1	Bottom Nut	Brass*
2	Body Gasket	Neoprene
3	Spring	Stainless Steel
4	Plug	Stainless Steel
5	Soft Seat	Teflon
6	Body	Aluminium*
7	Area Plate Assembly	Aluminium*
8	Soft Seat	Teflon
9	Diaphragm	Neoprene
10	Socket Head Screw	Stainless Steel
11	Top Cover	Aluminium*
12	o Ring	Nitrile
13	Adjusting Screw	Stainless Steel
14	Spacer	Aluminium*

* Stainless Steel construction can be supplied.

Table 2. Construction Materials Model 3000 Booster.

Item	Description	Materials
1	Body	Aluminium*
2	Gasket 0 Ring	Nitrile
3	Blind Nut	Brass*
4	Spring	304 St. Steel
5	Plug	St.Steel/Nitrile
6	o Ring	Nitrile
7	Seat Ring	Brass
8	Lock Nut	Stainless Steel
9	Exhaust Seat	Aluminium*
10	Diaphragm Plate	Aluminium*
11	Diaphragm	Nitrile / Nylon
12	Spacer	Aluminium*
13	Spring Housing	Stainless Steel
14	Spring	304 St. Steel
15	Cover	Aluminium*
16	o Ring	Nitrile
17	Lock Nut	Stainless Steel
18	Adjusting Screw	Stainless Steel
19	Backing Plate	Aluminium*
20	Cover Screw	Stainless Steel

* Stainless Steel construction can be supplied.

Typical Application Schematics for Volume Boosters
Spring Diaphragm Fitted with Booster and Positioner