Customized Products

Excess Flow Valves

We offer the 2000 series, which is our full line of excess flow valves, for all types of fluids and processes. Excess flow valves are in-line devices to limit the upstream or downstream flow when extreme under/over flow rates occur. We have manufactured the valves for all types of liquid and gaseous fluids. These fluids have included LP-Gas, Butane, Anhydrous Ammonia, Anhydrous Chlorine, air, water, Nitrogen, etc…. We have a wide variety of pressure classes, material options and flange designs. Please see our standard product line sheet for specifications. We will custom design and manufacture an excess flow valves to meet your exact specifications. All valves are tested to your specifications in our flow lab facility that is equipped with the state of the art data acquisition software.

Flanged
Excess Flow Valve
Tank
Excess Flow Valve
Externally Adjustable
Excess Flow Valve

Click diagrams to enlarge

2100 Series

Model Size A
Width
B
Dia.
C
Length
E
Insert Dia.
CV Ranges*
2100-G 1.5” 1/2 2 7/8 2 5/8 1 1/2 9 - 17
2100-I 2” 1/2 3 5/8 3 11/32 1 29/32 18 - 22
2100-K 3” 1/2 5 3 23/32 2 7/8 22 - 45
2100-L 4” 5/8 6 3/16 4 11/16 3 3/4 65 – 80
2100-M 6” 3/4 8 1/2 7 7/32 5 11/16 80 – 182
2100-N 8” 3/4 10 5/8 8 3/16 7 1/2 182 – 343
2100-P 10” 7/8 12 3/4 11 5/16 9 5/8 343 – 600
2100-Q 12” 1.25 15 14 1/2 11 1/2 600 – 950
2100-R 14” 1.50 16 1/4 16 1/2 12 7/8 950 - 1225

*Custom CVs upon request.

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

2100 Series Excess Flow Valves are designed to easily insert between ANSI class flanges for use in liquid or vapor service. These valves are lightweight, offer generous flow rates and are extremely durable. Available in carbon or stainless steel with other materials available upon request. The 2100 Series valve is equipped with a weep hole to allow for pressure equalization once the valve closes and is equipped with an auto reset feature. Closing flow rates are factory preset per customer requirements.

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2105 Series

Model Size A
Width
B
Dia.
C
Length
CV Ranges
2105-G 1.5” 1/2 2 7/8 2 5/8 9 - 22
2105-I 2” 1/2 3 5/8 3 11/32 22 - 28
2105-K 3” 1/2 5 3 23/32 45 - 57
2105-L 4” 5/8 6 3/16 4 11/16 81 – 101
2105-M 6” 3/4 8 1/2 7 7/32 181 – 227
2105-N 8” 3/4 10 5/8 8 3/16 343 – 450
2105-P 10” 7/8 12 3/4 11 5/16 600 – 750
2105-Q 12” 1.25 15 14 1/2 950 – 1188
2105-R 14” 1.50 16 1/4 16 1/2 1225 - 1800

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

2105 Series Excess Flow Valves are designed to easily insert between ANSI class flanges for use in liquid or vapor service. These valves are lightweight, durable and offer a more generous flow rate than the 2100 model. Standard design on the 2105 Series valve has a weep hole to allow for pressure equalization once the valve closes. An optional external manual bypass system is also offered (shown in photograph.) This reduces the time it takes for pressure to equalize and the valve to reopen. The valve is available in carbon or stainless steel - other materials available upon request.

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2120 Series

Model Size 150# ANSI Flanges 300# ANSI Flanges 600# ANSI Flanges C
Length
CV Ranges
A
Dia.
B
Width
A
Dia.
B
Width
A
Dia.
B
Width
2120-G 1.5” 0.68 5.00 0.81 6.12 0.88 6.12 4.0 9 - 17
2120-I 2” 0.75 6.00 0.88 6.50 1.00 6.50 4.5 18 - 22
2120-K 3” 0.94 7.50 1.12 8.25 1.25 8.25 5.25 22 - 45
2120-L 4” 0.94 9.00 1.25 10.00 1.50 10.75 5.5 65 - 80
2120-M 6” 1.00 11.00 1.44 12.50 1.88 14.00 6.5 80 – 182
2120-N 8” 1.12 13.50 1.62 15.00 2.19 16.50 8.0 182 – 343
2120-P 10” 1.19 16.00 1.88 17.50 2.50 20.00 9.5 343 – 600
2120-Q 12” 1.25 19.00 2.00 20.50 2.62 22.00 11.0 600 – 950
2120-R 14” 1.38 21.00 2.12 23.00 2.75 23.75 13.0 950 - 1225

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

2120 Series Excess Flow Valves are designed for use in liquid or vapor service. These valves are heavily constructed and can withstand years of service. The 2120 Series comes standard with 150# or 300 # ANSI class flanges. Available standard in carbon or stainless steel; however, other materials are available upon request. Internal components are also offered in ceramic. The 2120 series comes with flanged connections, but can be ordered with a butt welded or threaded connection option. A weep hole for automatic pressure equalization is standard. An external manual bypass system is optional. The system consists of ½” SS piping with a CS or SS mini valve with/without a weep hole. Closing flow rates for the 2120 Series Excess Flow Valves are factory preset per customer requirements.

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2130 Series

Model A
Inlet Connection
B
Outlet Connection
C
Orifice Dia.
D
Length
Outside Dia. CV Ranges
2130-G 1 ½” MNPT 1 ½” FNPT 0.80 3 3/5” 2 3/8” Hex 9 - 17
2130-I 2” MNPT 2” FNPT 1.10 4 ¾” 2 7/8” Hex 18 - 22
2130-K 3” MNPT 3” FNPT 1.65 6 7/8” 4” Hex 22 - 45
2130-L 4” MNPT 4” FNPT 2.20 8 ½” 5 ½” Rnd 65 - 80

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

Different size end connections are available.

2130 Series Excess Flow Valves are designed for use in liquid or vapor service to stop the flow in the event of an over-pressure situation. The 2130 Series have male NPT connections on the inlet side and female NPT connections on the outlet side. These valves offer excellent flow rates and can be used in many different applications. Available in carbon or stainless steel construction. Other materials are available upon request. Internal components are also offered in ceramic. Each valve comes standard with 316/SS springs.

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2140 Series

Model A
Inlet Connection
B
Outlet Connection
C
Orifice Dia.
D
Length
Outside Dia. CV Ranges
2140-G 1 ½” FNPT 1 ½” MNPT 0.80 3 3/5” 2 3/8” Hex 9 - 17
2140-I 2” FNPT 2” MNPT 1.10 4 ¾” 2 7/8” Hex 18 - 22
2140-K 3” FNPT 3” MNPT 1.65 6 7/8” 4” Hex 22 - 45
2140-L 4” FNPT 4” MNPT 2.20 8 ½” 5 ½” Rnd 65 - 80

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

Different size end connections are available.
Closing flow rates for the 2130 and 2140 Series Excess Flow Valves are factory preset per customer.

2140 Series Excess Flow Valves have female NPT connections on the inlet side and male NPT connections on the outlet side. The 2140 Series is designed for use in liquid or vapor service to stop flow in the event of an over pressure situation. Available in carbon or stainless steel construction. Other materials are available upon request. Internal components are also offered in ceramic. Each valve comes standard with 316/SS springs.

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2150 Series

Model A
Inlet Connection
B
Outlet Connection
C
Orifice Dia.
D
Length
Outside Dia. CV Range
2150-G 1 ½” FNPT 1 ½” FNPT 0.80 3 3/5” 2 3/8” Hex 9 - 17
2150-I 2” FNPT 2” FNPT 1.10 4 ¾” 2 7/8” Hex 18 - 22
2150-K 3” FNPT 3” FNPT 1.65 6 7/8” 4” Hex 22 - 45
2150-L 4” FNPT 4” FNPT 2.20 8 ½” 5 ½” Rnd 65 - 80

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

Different size end connections are available.

2150 Series Excess Flow Valves have female NPT connections on the inlet side and female NPT connections on the outlet side. The 2150 Series is designed for use in liquid or vapor service to stop the flow in the event of an over-pressure situation. These valves offer excellent flow rates and can be used in many different applications. Available in carbon or stainless steel construction. Other materials are available upon request. Internal components are also offered in ceramic. Each valve comes standard with 316/SS springs. Options include an External Manual Bypass (shown) that allows for faster equalization across the poppet. Can be used with standard poppet or soft seat with no weep hole.

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2160 Series

Model A
Inlet Connection
B
Outlet Connection
C
Orifice Dia.
D
Length
Outside Dia. CV Ranges
2160-G 1 ½” MNPT 1 ½” MNPT 0.80 3 3/5” 2 3/8” Hex 9 - 17
2160-I 2” MNPT 2” MNPT 1.10 4 ¾” 2 7/8”Hex 18 - 22
2160-K 3” MNPT 3” MNPT 1.65 6 7/8” 4” Hex 22 - 45
2160-L 4” MNPT 4” MNPT 2.20 8 ½” 5 ½” Rnd 65 - 80

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

Different size end connections are available.

Closing flow rates for the 2100 and 2120 Series Excess Flow Valves are factory preset per customer requirements.

2160 Series Excess Flow Valves have male NPT connections on the inlet side and male NPT connections on the outlet side. The 2160 Series is designed for use in liquid or vapor service to stop flow in the event of an over-pressure situation. Available in carbon or stainless steel construction. Other materials are available upon request. Internal components are also offered in ceramic.

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2180 Series

Model Size Connection Type Length CV Ranges
2180-E 1” 1” FNPT 5 1/8” 22 - 27
2180-I 2" 2” FNPT 5 5/8” 30 - 56
2180-K 3” 3” FNPT 6 7/8” 60 - 100
2180-L 4” 4” FNPT 8 ½” 100 - 160
2180-M 5” 5” FNPT As Req. 181 - 227
2180-N 6” 6” FNPT As Req. 227 - 450
2180-P 8” 8” FNPT As Req. 600 - 750

*Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.

2180 Series Excess Flow Valves are designed for use in liquid, vapor or mixed service. It can be either a single or a two-phase valve. The 2180 Series has female NPT connections on both the inlet and outlet sides. It is designed with a manual reset rather than a weep hole in the disc for pressure equalization and automatic resetting. Available in standard carbon steel, the body can also be offered in stainless steel. Internal components are available in stainless steel. Each valve comes standard with an Inconel spring. Closing flow rates are factory preset per customer’s specifications.

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2400 Series

DWG # SIZE Dimensions in mm
A B C D E F G
2400-1 20" flanged 24" 692 479 505 500 806 70 593
2400-2 10" flanged 12" 381 243 265 270 581 31 488
2400-3 4" flanged 6" 216 100 120 180 495 36 443
2400-4 16" flanged 16" 470 354 380 400 632 40 492
2400-5 10" flanged 12" 381 243 265 270 513 31 420
2400-6 2" flanged 4" 157 41 53 100 480 31 446
2400-7 4" flanged 6" 216 100 120 180 480 31 425
2400-8 2" flanged 3" 157 41 53 100 80 31 N/A
2400-9 2" flanged 3" 127 41 53 100 80 28 N/A
2400-10 3.5" flanged 4" 157 84 98 180 290 31 240
2400-11 10" flanged12" 381 243 265 270 510 31 410

2400 Series Excess Flow Valves are designed to provide protection for liquid service such as LPG (Liquid Propane Gas) service with a specific weight of 0.508 kg/L. The 2400 Series is designed to meet specific flow requirements and size requirements. These requirements are listed in the data below. The internal parts for the valves are stainless steel while the bodies are carbon steel.

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2600 Series

Model Size Class 150 Class 300  
A (Height) B (end to end) C (Flange OD) A (Height) B (end to end) C (Flange OD) CV Range*
2600-E 1" 5.40" 5.00" 4.30" 5.50" 7.75" 4.30" 16 - 20
2600-G 1.5" 5.50" 6.50" 5.00" 5.50" 9.00" 6.13" 22 - 28
2600-I 2" 8.10" 8.00" 6.00" 8.50" 10.50" 6.50" 32 - 40
2600-K 3" 11.60" 9.50" 7.50" 9.25" 12.50" 8.25" 72 - 90
2600-L 4" Per Customer Specifications 15.30" 14.00" 10.00" 136 - 170
2600-M 6" 15.30" 17.50" 12.50" 304 - 380
2600-N 8" 15.30" 22.00" 15.00" 400 - 500
2600-P 10" 15.30" 24.50" 17.50" 880 - 1100

*Larger Valves and Custom CVs available upon request.

*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L 6, Inc. d/ba/a Total Valve.

2600 Series Excess Flow Valves are designed as safety valves to stop the flow when a hose or pipeline is severed downstream. Various sizes are used in small laboratories to large refineries, chemical processing plants, semiconductor industry, pharmaceutical, biotech and food plants.

Unique features include an infield externally adjustable setting or resetting of the trip point. This allows avoidance of nuisance trips when fluid properties change, the design flow changes, varying flow rates and seasonal fluctuations. A sliding poppet is within a chamber with an orifice at one end wherein the closing flow rate settings can be adjusted. Precise adjustments can be made externally by turning a threaded member extending through the valve which causes a retainer to move laterally within the chamber. Turning the threaded member enables the maximum travel distance of the poppet and therefore the threshold flow rate of the valve can be precisely set.

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