Series 510, Ductile Body - Back Pressure Valve with External Sensor Line

DESCRIPTION

The INVALCO Series 510 Valve can be used for maintaining back pressure on vent lines from separators, treaters, dehydrators, compressor stations, gas gathering systems, etc.

Specifications

Body and Cover	Ductile A-395
End Connections	2”, 3”, 4” and 6” ANSI 150# RF Flanges
Diaphragm Case	Steel, 26 sq. in. or 65 sq. in.*
Diaphragm	Nylon reinforced Buna N
Temperature Limits	-20°F to 250°F**
Containment Pressure	100 psi **
Packing	Non-lubricated Buna-N
Stem	303 Stainless Steel****
Cages and Guides	304 Stainless Steel
Seats	2”, 3”, and 4”...304 Stainless Steel 6”...303 Stainless Steel****
Valve Plugs	2”, 3”, and 4” Replaceable Buna**** 6” Viton O-Ring
Seat-to-Body Seals	O-Ring
Spring Ranges	0-100 psi (see chart on page 2)
Pressure Increase Required From Full Closed to Full Open Spring Range 0-25 psi 20-40 psi 40-60 psi 60-100 psi	Increase 2.7 psi 4.0 psi 9.0 psi 10.5 psi

FEATURES

Ductile Iron Body - Meets most application requirements.
Soft Plug - Allows for positive shut-off.
Double-Port Design - Allows for decreased flow.
Nace Adaptable - Can be modified for use in sour service.

SETTINGS

Any spring combination may be set to open at less than 5 psi working pressure, but, because the heavier springs are less sensitive, it is recommended that valves be selected to suit the pressure range required. Valve will be factory set to mid-point of range specified.

ADDITIONAL INFORMATION

General Notes
1. Refer to valve engineering section for valve sizing charts.
2. Cg-Cv is for fully opened valve.
3. Part numbers valid only if valve desired is exactly as described.

* 6” Only
26 sq. in. Topworks for 40-60 and 60-100 Spring Range.
65 sq. in. Topworks for 0-25 and 20-40 Spring Range.
2”, 3” and 4” Valves
26 sq. in. Topworks.
** Containment pressure is maximum working pressure and is limited by the diaphragm case. However, pressures above the maximum spring setting are uncontrolled and the back pressure valve will be fully open.
*** Limited by elastomers.
**** Consult factory for optional trim.

Note to Dimensions: Dimensions – Inches to the nearest tenth (millimeters to the nearest whole mm), each independently dimensioned from respective engineering drawings.

*Clearance to remove adjusting screw.
Cv-Cg values for full open valve.
Part numbers valid only if valve is exactly as described.

Check	Part #	Description	Comments	Qty
	80006241	RDFG-201-510 - 0-25
	80006242	RDFG-201-510 - 20-40
	80006243	RDFG-201-510 - 40-60
	80006244	RDFG-201-510 - 60-100
	80006245	RDFG-301-510 - 0-25
	80006246	RDFG-301-510 - 20-40
	80006247	RDFG-301-510 - 40-60
	80006248	RDFG-301-510 - 60-100
	80006249	RDFG-401-510 - 0-25
	80006250	RDFG-401-510 - 20-40
	80006251	RDFG-401-510 - 40-60
	80006252	RDFG-401-510 - 60-100
	80006254	RDFG-601-510 - 0-25
	80006255	RDFG-601-510 - 20-40
	80006256	RDFG-601-510 - 40-60
	80006257	RDFG-601-510 - 60-100

Check	Part #	Description	Comments	Qty
	65015572	Screw 5/8-11x5-1/2 SQHSS - 2”
	65015572	Screw 5/8-11x5-1/2 SQHSS - 3” & 4”
	65002136	Nut 5/8-11 Hex - 2”
	65002136	Nut 5/8-11 Hex - 3” & 4”
	48004283	Upper Diaphragm Case - 2”
	48004283	Upper Diaphragm Case - 3” & 4”
	67102312	O-Ring BUN-012-90 - 2”
	67102312	O-Ring BUN-012-90 - 3” & 4”
	45003992	Lower Spring Rest - 2”
	45003992	Lower Spring Rest - 3” & 4”
	65001401	Nut 3/8-24 Flexloc - 2”
	65001401	Nut 3/8-24 Flexloc - 3” & 4”
	45005496	Upper Diaphragm Plate - 2”
	45005496	Upper Diaphragm Plate - 3” & 4”
	65002073	Screw 5/16-18x3/4 HHCS - 2”
	65002073	Screw 5/16-18x3/4 HHCS - 3” & 4”
	45003465	Diaphragm - 2”
	45003465	Diaphragm - 3” & 4”
	65002100	Nut 5/16-18 Hex - 2”
	65002100	Nut 5/16-18 Hex - 3” & 4”
	67101099	O-Ring BUN-225-90 - 2”
	67101299	O-Ring BUN-225-90 - 3” & 4”
	45001939	Packing Nut - 2”
	45001939	Packing Nut - 3” & 4”
	65003440	Screw 3/8-16x7/8 HHCS - 2”
	65002852	Screw 1/2-13x1 HHCS - 3” & 4”
	65002513	Nut 2” (3/8-24 Hex Jam) - 2”
	65005386	Nut 2” (3/8-24 Hex Jam) - 3” & 4”
	45010518	Stem Connector - 2”
	45010521	Stem Connector - 3” & 4”
	67101532	O-Ring BUN-110-90/BUN-112-90 - 2”
	67101408	O-Ring BUN-110-90/BUN-112-90 - 3” & 4”
	45002423	Upper Seal - 2”
	45003359	Upper Seal - 3” & 4”
	45002424	Lower Seal - 2”
	45003359	Lower Seal - 3” & 4”
	67101530	O-Ring BUN-228-90 - 2”
	67101736	O-Ring BUN-234-90 - 3” & 4”
	45002432	Upper Seal Retainer - 2”
	45003392	Upper Seal Retainer - 3” & 4”
	45002435	Lower Stem Guide - 2”
	45003386	Lower Stem Guide - 3” & 4”
	65003075	Nut 3/8-24 - 2”
	65003402	Nut 1/2-20 Flexloc - 3” & 4”
	45002436	Lower Valve Plug - 2”
	45003395	Lower Valve Plug - 3” & 4”
	67101530	O-Ring BUN-228-90 - 2”
	67102331	O-Ring BUN-233-90 - 3” & 4”
	45016100	Seat Cage - 2”
	45016102	Seat Cage - 3” & 4”
	45002429	Lower Stem - 2”
	45003385	Lower Stem - 3” & 4”
	45002434	Upper Stem Guide - 2”
	45003384	Upper Stem Guide - 3” & 4”
	45002431	Cage Spacer - 2”
	45003389	Cage Spacer - 3” & 4”
	45002436	Upper Valve plug - 2”
	45003390	Upper Valve plug - 3” & 4”
	45010519	Upper Stem - 2”
	45010520	Upper Stem - 3” & 4”
	67101540	O-Ring BUN-230-90 - 2”
	67102334	O-Ring BUN-237-90 - 3” & 4”
	45003128	Clamp Ring - 2”
	45003413	Clamp Ring - 3” & 4”
	11032059	Tubing 3/8 304 SS - 2”
	11032059	Tubing 3/8 304 SS - 3” & 4”
	45016252	Elbow 1/4 NPT x 3/8 Tubing - 2”
	45016252	Elbow 1/4 NPT x 3/8 Tubing - 3” & 4”
	45001948	Packing Ring 1/2” x 1” Flat - 2”
	45001948	Packing Ring 1/2” x 1” Flat - 3” & 4”
	45001947	Packing Ring 1/2” x 1” Reg. - 2”
	45001947	Packing Ring 1/2” x 1” Reg. - 3” & 4”
	45003466	Lower Diaphragm Plate - 2”
	45003466	Lower Diaphragm Plate - 3” & 4”
	45002612	1/4” Bleeder Filter - 2”
	45002612	1/4” Bleeder Filter - 3” & 4”
	50100001	Coupling 1/4” NPT - 2”
	50100001	Coupling 1/4” NPT - 3” & 4”
	45006875	Nipple 1/4” NPT - 2”
	45006875	Nipple 1/4” NPT - 3” & 4”
	45012099	Body RDFG-201-510 - 2”
	45012100	Body RDFG-301-510 - 3” & 4”
	45012101	Body RDFG-401-510 - 3” & 4”
	65004401	Washer 3/8” Lock - 2”
	65005389	Washer 1/2” Toothlock - 3” & 4”