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Valve Train Assemblies

Features

The standard Kromschröder valve train uses VAS / VAD 1-3 solenoid valves and associated attachments
Designed for 120 V AC operation, with options for 24 V DC or 230 V AC
Includes a 12-44” WC high pressure switch and a 3-17” WC low pressure switch

Optional Components

Pressure Rating

7.25 psi maximum with standard valve train
7 psi maximum with regulated valve train

Temperature Rating

-4°F to 140°F (-20°C to + 60°C)

Component Agency Approvals

Helpful Tools

Flow Calculator

Specifications
Pipe Size NPT	Standard Part Number	Part Number with Regulator	Approximate Length inches (mm)	Capacity cfh Natural Gas	Pressure Drop @1 psi Inlet
1/2"	KVTS 115	KVTR 115	15.5 (394)	350	1.6” WC (3.98 mbar)
3/4"	KVTS 120	KVTR 120	16 (406)	600	2.2” WC (5.47 mbar)
1”	KVTS 125	KVTR 125	17 (432)	1100	5.6” WC (13.94 mbar)
1”	KVTS 225	KVTR 225	19 (483)	2000	6.0” WC (14.93 mbar)
1-1/4”	KVTS 232	KVTR 232	20 (508)	2500	5.8” WC (14.43 mbar)
1-1/2”	KVTS 240	KVTR 240	21 (533)	2750	5.8” WC (14.43 mbar)
1-1/2”	KVTS 340	KVTR 340	22.5 (572)	4000	5.8” WC (14.43 mbar)
2”	KVTS 250	KVTR 250	22.5 (572)	2800	5.8” WC (14.43 mbar)
2”	KVTS 350	KVTR 350	24 (610)	4250	5.6” WC (13.94 mbar)

Standard Valve Train Components

Pipe Size NPT	Item 1 Manual Shutoff Valve	Item 2 Automatic Shutoff Valve 1	Item 3 Automatic Shutoff Valve 2	Item 4 Low Pressure Switch 3-17” WC, 7.5 - 42.5 mbar	Item 5 High Pressure Switch 12-44" WC, 30-110 mbar
1/2"	AKT 15TN88 KS03152308	VAS, size 1	VAS, size 1	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
3/4"	AKT 20TN88 KS03152309	VAS, size 1	VAS, size 1	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
1”	AKT 25TN88 KS03152310	VAS, size 1	VAS, size 1	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
1”	AKT 25TN88 KS03152310	VAS, size 2	VAS, size 2	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
1-1/4”	AKT 32TN88 KS03152311	VAS, size 2	VAS, size 2	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
1-1/2”	AKT 40TN88 KS03152312	VAS, size 2	VAS, size 2	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
1-1/2”	AKT 40TN88 KS03152312	VAS, size 3	VAS, size 3	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
2”	AKT 50TN88 KS03152313	VAS, size 2	VAS, size 2	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585
2”	AKT 50TN88 KS03152313	VAS, size 3	VAS, size 3	DG 40VCT1-6W KS74214174	DG 110VCT1-6W KS75454585

Valve Train with Optional Regulator Components

Pipe Size NPT	Item 1 Manual Shutoff Valve	Item 2 Automatic Shutoff Valve 1	Item 3 Regulator Valve 2**	Item 4 Low Pressure Switch 12-44" WC, 30-110 mbar	Item 5 High Pressure Switch 3-17” WC, 7.5 - 42.5 mbar
1/2"	AKT 15TN88 KS03152308	VAS, size 1	VAD, size 1	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
3/4"	AKT 20TN88 KS03152309	VAS, size 1	VAD, size 1	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
1”	AKT 25TN88 KS03152310	VAS, size 1	VAD, size 1	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
1”	AKT 25TN88 KS03152310	VAS, size 2	VAD, size 2	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
1-1/4”	AKT 32TN88 KS03152311	VAS, size 2	VAD, size 2	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
1-1/2”	AKT 40TN88 KS03152312	VAS, size 2	VAD, size 2	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
1-1/2”	AKT 40TN88 KS03152312	VAS, size 3	VAD, size 3	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
2”	AKT 50TN88 KS03152313	VAS, size 2	VAD, size 2	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174
2”	AKT 50TN88 KS03152313	VAS, size 3	VAD, size 3	DG 110VCT1-6W KS75454585	DG 40VCT1-6W KS74214174

**Outlet Pressure Ranges include: 2.5-25 mbar, 20-50 mbar, or 35-100 mbar. Range must be specified upon ordering. The valve train does not increase in length when ordered with the optional pressure regulator.

Valve Train with Additional Components
Valve Train with Pressure Gauges
Valve Train with Test Ports
Valve Train with Pressure Gauges and Pre-Wire