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Home » Catalogue » FMC Invalco Catalogue » Valves/Diaphragm Operated » Series 442, Cast Iron Body - Diatrollers Valve and Level Control

Series 442, Cast Iron Body - Diatrollers Valve and Level Control

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Series 442, Cast Iron Body - Diatrollers Valve and Level Control

DESCRIPTION

The INVALCO Diatroller is a combination liquid level controller and liquid valve. Closed, the force of the weighted rod on top exceeds the liquid pressure under the valve diaphragm. As the liquid level rises in the vessel, the increased head pressure raises the diaphragm, opening the valve.
Gas from the top of pressure vessels is piped to the valve diaphragmʼs top side to equalize pressure.

Specifications

Body Material Cast Iron, A-126
Body Cover Material Cast Iron, A-126
End Connections 2” FNPT Threaded; 3”, 4” Class 125# FF Flanges.
Diaphragm Material Nylon Reinforced Buna N Diaphragm
Maximum Differential Operating Pressure 125 psi
Temperature Limits -20°F to 250°F
Plug Type Replaceable, Buna N
Seat Type Removable, Cast Iron
Other Wetted Parts 303 Stainless

FEATURES

Quick Change Trim - Can be changed without taking valve out of the line - reduced downtime.
Replaceable Seat - Reduced overall cost.
Weights Can Be Added - Meets all application demands.
Soft Plug - Assures tight shut-off.

APPLICATIONS

The Series 442 Diatroller is perfect for an oil or water dump valve for treaters, free water knockouts, and gun barrels. It can also be used as a discharge valve for salt water disposal systems.

ADDITIONAL INFORMATION

General Notes:
1. Cv values are for fully open inner valve.
2. Part numbers applicable only when valve desired is exactly as described above.
3. To order specify Model Number, Part Number.

Files area
Series 442, Cast Iron Body Manual Series 442, Cast Iron Body Manual
Explanation of Model # System Explanation of Model # System
Images related to this product(parts)

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Dimensions - Inches (mm)
Dimensions - Inches (mm)

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Parts
Parts
Ordering Information

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Check Part # Description Comments Qty
80005504 LDSA-201-442
80005502 LDFA-301-442
80005503 LDFA-401-442

Comments:

Parts schemas

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Check Part # Description Comments Qty
65000176 Screw 1/2-13x1-1/4 HHCS - LDFA-301, LDFA-401
65000175 Screw 3/8-16x1 HHCS - LDSA-201
45013360 Stuffing Box Gasket - LDSA-201
45013386 Stuffing Box Gasket - LDFA-301, LDFA-401
45001815 Bushing - LDSA-201
45002123 Bushing - LDFA-301, LDFA-401
79002880 Hinge Pin - LDSA-201
79015295 Hinge Pin - LDFA-301, LDFA-401
45001816 Stuffing Box Stem - LDSA-201
45002125 Stuffing Box Stem - LDFA-301, LDFA-401
67101304 O-Ring; 2"-BUN-114-90, 3"-BUN-210-90 - LDSA-201
67101263 O-Ring; 2"-BUN-114-90, 3"-BUN-210-90 - LDFA-301, LDFA-401
45001818 Stuffing Box - LDSA-201
45002124 Stuffing Box - LDFA-301, LDFA-401
45001810 Body Cover Head - LDSA-201
45002111 Body Cover Head - LDFA-301, LDFA-401
65002346 Screw 3/8-16x1-1/4 HHCS - LDSA-201
65002346 Screw 3/8-16x1-1/4 HHCS - LDFA-301, LDFA-401
65001869 Screw 3/8-16x3/4 HHCS - LDFA-301, LDFA-401
45001813 Diaphragm - LDSA-201
45002109 Diaphragm - LDFA-301, LDFA-401
45001823 Retaining Washer - LDSA-201
45002121 Retaining Washer - LDFA-301, LDFA-401
45001817 Upper Hinge - LDSA-201
45002114 Upper Hinge - LDFA-301, LDFA-401
45001822 Valve Stem - LDSA-201
45002116 Valve Stem - LDFA-301, LDFA-401
45002214 Lift Pin - LDSA-201
45002119 Lift Pin - LDFA-301, LDFA-401
45001820 Diaphragm Screw - LDSA-201
45002117 Diaphragm Screw - LDFA-301, LDFA-401
45001819 Diaphragm Retainer - LDSA-201
45002118 Diaphragm Retainer - LDFA-301, LDFA-401
45001877 Molded Diaphragm - LDSA-201
45002032 Molded Diaphragm - LDFA-301, LDFA-401
45001809 Diaphragm Cover - LDSA-201
45002110 Diaphragm Cover - LDFA-301, LDFA-401
45001814 Upper Diaphragm Plate - LDSA-201
45002108 Upper Diaphragm Plate - LDFA-301, LDFA-401
45001812 Lower Diaphragm Plate - LDSA-201
45002112 Lower Diaphragm Plate - LDFA-301, LDFA-401
45001824 Neoprene Insert - LDSA-201
45002120 Neoprene Insert - LDFA-301, LDFA-401
45001821 Equalizing Plug - LDSA-201
45001821 Equalizing Plug - LDFA-301, LDFA-401
45005770 Valve Body 2" Screwed - LDSA-201
45002107 Valve Body 3" Flanged - LDFA-301, LDFA-401
45002352 Valve Body 4" Flanged - LDFA-301, LDFA-401
65001966 Nut 3/8-16 Hex - LDSA-201
65001966 Nut 3/8-16 Hex - LDFA-301, LDFA-401
45001811 Seat - LDSA-201
45002113 Seat - LDFA-301, LDFA-401
45002345 Seat Gasket - LDSA-201
45001224 Seat Gasket - LDFA-301, LDFA-401
45002595 Drain Plug 1/4" NPT - LDSA-201
45002595 Drain Plug 1/4" NPT - LDFA-301, LDFA-401
83201825 Weight - LDSA-201
83202348 Weight - LDFA-301, LDFA-401
65006056 Screw 3/8-16x1-1/2 SQHSS for Wt. - LDSA-201
65006056 Screw 3/8-16x1-1/2 SQHSS for Wt. - LDFA-301, LDFA-401
99008337 Lever - LDSA-201
99008338 Lever - LDFA-301, LDFA-401
83208326 Lever Collar - LDSA-201
83208328 Lever Collar - LDFA-301, LDFA-401
45006875 1/4x1-1/2" XH Galvanized Nipple - LDSA-201
45006875 1/4x1-1/2" XH Galvanized Nipple - LDFA-301, LDFA-401
80000502 Drip Trap - LDSA-201
80000502 Drip Trap - LDFA-301, LDFA-401
65003440 Screw 3/8-16x7/8 HHCS - LDSA-201

Parts schemas

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