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Home » Catalogue » FMC Invalco Catalogue » Valves/Diaphragm Operated » Series 438, Steel Body - Flanged 4” Globe

Series 438, Steel Body - Flanged 4” Globe

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Series 438, Steel Body - Flanged 4” Globe

DESCRIPTION

The Series 438 Valve can be used in a variety of applications that require a steel bodied valve. This could include high or low pressure separators, treaters, dehydrators or any other pressure vessel. The Series 438 Valve is perfect for offshore vessels.

Specifications

Body Material Cast Steel A-216-WCB
Body Cover Steel A-105 GR2, Union
End Connections Flanged
Diaphragm Operator Steel, 80 sq. in. , Nylon
Reinforced Buna N Diaphragm, 100 psi
Maximum Working Pressure
Packing Non-Lubricated Packing
Maximum Working Pressure 1440 psi
Temperature Limits -40°F to 250°F
Stem 303 S.S.
Seat and Plug See Ordering Information
Balanced Trim Provides smooth operation even with
high inlet/outlet differential pressures.

FEATURES

Meets ANSI Flanged Dimensions - Perfect for Offshore Applications.
Hammer Union Construction - Reduces downtime for repair.
Proven Closed Yoke Design - Reduces the chance of debris entering the valve.
NACE Adaptable - Can be modified for use in sour service.

ADDITIONAL INFORMATION

General Notes:
1. Standard topworks is direct action (normally closed) with 80 sq. in. effective area.
2. Cv and Cg values are for fully open inner valve.
3. Stock numbers applicable only when valve desired is exactly as described above.
4. To order specify Model Number, Stock Number, Trim Description.
5. See parts list attached.


AR - As Required

Files area
Series 438, Steel Body Manual Series 438, Steel Body Manual
Explanation of Model # System Explanation of Model # System
Ordering Information

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Order

Check Part # Description Comments Qty
80003775 DFG-402-438 - 3-3/4” - Stainless Steel “O” RIng
80009075 DFG-402-438 - 3-3/4” - Hardened 440C S.S.
80009074 DFG-402-438 - 3” - Hardened 440C S.S.
80009073 DFG-402-438 - 2” - Hardened 440C S.S.
80009072 DFG-402-438 - 1-1/2” - Hardened 440C S.S.
80003776 DFG-402R-438 - 3-3/4” - Stainless Steel “O” RIng
80009079 DFG-402R-438 - 3-3/4” - Hardened 440C S.S.
80009078 DFG-402R-438 - 3” - Hardened 440C S.S.
80009077 DFG-402R-438 - 2” - Hardened 440C S.S.
80009076 DFG-402R-438 - 1-1/2” - Hardened 440C S.S.
80003777 DFG-414-438 - 3-3/4” - Stainless Steel “O” RIng
80009083 DFG-414-438 - 3-3/4” - Hardened 440C S.S.
80009082 DFG-414-438 - 3” - Hardened 440C S.S.
80009081 DFG-414-438 - 2” - Hardened 440C S.S.
80009080 DFG-414-438 - 1-1/2” - Hardened 440C S.S.
80003778 DFG-414R-438 - 3” - Stainless Steel “O” RIng
80009087 DFG-414R-438 - 3” - Hardened 440C S.S.
80009086 DFG-414R-438 - 3” - Hardened 440C S.S.
80009085 DFG-414R-438 - 2” - Hardened 440C S.S.
80009084 DFG-414R-438 - 1-1/2” - Hardened 440C S.S.

Comments:

Parts schemas

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Order

Check Part # Description Comments Qty
65003094 Screw 5/8-11 x 5 1/2 SQHSS ZP
65005513 Nut, 5/8-11 FHN CP
45012811 Caution Tag Valve 5/8 Hole
45003991 Upper Spring Rest
45003940 Spring, Inner 100 psi max.
45003941 Spring, Outer 100 psi max.
48006312 Upper Diaphragm Case #80
45004223 Travel Indicator Sightglass, STD
65005342 Nut 5/8-18 Flex Lock ZP
45001966 Nut 3/8-16 Hex ZP
45003129 Bushing, Travel Indicator
67101304 O-Ring 5/8 ID x 3/32 BUN-114-90
45012340 Lower Spring Rest
45004315 Spring, Travel Indicator
46004335 Travel Indicator, 2 3/4” LG
45012341 Upper Diaphragm Plate
45004847 Diaphragm, #80 Top Works
45012342 Lower Diaphragm Plate
48001905 Lower Diaphragm Case #80
67101403 O-Ring 1 ID x 1/8 BUN-214-90
67101299 O-Ring 1 7/8 ID x 1/8 BUN-225-90
48001152 Yoke Assembly
45012339 Stem, Upper
45002715 Nut, 4” Hammer Union
45011630 Nut, Packing
45011633 Stuffing Box, 4” 438 Valve
45011703 Spacer, Packing
45002611 Packing Ring, 3/4 x 1 1/4 (Flat)
45002610 Packing Ring, 3/4 x 1 1/4 (Reg)
83000505 Trim, 1 1/2” Bal Hard SS
83000507 Trim, 2” Bal Hard SS
83000509 Trim, 3” Bal Hard SS
83000510 Trim, 3 3/4” Bal Hard SS
83000517 Trim, 3 3/4” Bal O-Ring Trim
45011650 Body, 4” 150#RF, 438 Series VIv
45011666 Body, Steel, 150#RTJ, GLB 438 Ser
45011651 Body, 4” 600#RF, GLB 438 Series
45011668 Body, Steel, 4” 600#RTJ, GLB 438 Ser
65003440 Screw, 3/8-16 x 7/8 HHCS ZP
45002612 1/4 NPT Bleeder Filter
45012812 Caution Tag, Relieve Pressure (N/S)
45300000 Name Tag (Not Shown)
65007005 Screw, 2pk 1/8 U Drive

Parts schemas

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