Trafag Piston Pressure Switch PST4K / 9K4

Trafag Piston Pressure Switch PST4K / 9K4

Price range: €237,09 through €244,03 (€286,88 incl. VAT)

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Product information and datasheets →

Pressure range (Bar)

Process Connection

Overpressure max.

Switching differential

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SKU: PST4K / 9K4 Categories: Trafag, Trafag Pressure Switches Tags: 9k4 pressostat, trafag picostat pstk, Trafag Piston Pressure Switch PST4K, update2026

Description

Range: 1...+16 to 40...+400 bar
measuring element: piston
Pressure connection: G1/4 female or flange
Output: SPDT changeover contact
Housing: aluminum, IP65
Ship Approval: ABS, BV, DNV, GL, KRS, LRS, PRS, RINA

Download specifications

Product no.	Type Code	Pressure range	Pressure max.	Switching differential
PST4K16F4	9K4 4279 756 04 11 15 46 74 V3	1 … 16	100	0.4 ... 2.4 (fixed)
PST4K164	9K4 4279 756 04 15 46 V3	1 … 16	100	0.4 ... 2.4 (fixed)
PST4K40F4	9K4 4281 757 04 11 15 46 74 V3	4 … 40	100	1 ... 6 (fixed)
PST4K404	9K4 4281 757 04 15 46 V3	4 … 40	100	1 ... 6 (fixed)
PST4K100F4	9K4 4283 758 04 11 15 46 74 V3	10 … 100	200	5 ... 15 (fixed)
PST4K1004	9K4 4283 758 04 15 46 V3	10 … 100	200	5 ... 15 (fixed)
PST4K250F4	9K4 4285 759 04 11 15 46 74 V3	25 … 250	400	12 ... 40 (fixed)
PST4K2504	9K4 4285 759 04 15 46 V3	25 … 250	400	12 ... 40 (fixed)
PST4K400F4	9K4 4286 759 04 11 15 46 74 V3	40 … 400	600	15 ... 50 (fixed)
PST4K4004	9K4 4286 759 04 15 46 V3	40 … 400	600	15 ... 50 (fixed)

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Extra information

Weight	1 kg
Pressure range (Bar)	1 … 16, 10 … 100, 25 … 250, 4 … 40, 40 … 400
Process Connection	G¼" BSP internal, Flange
Overpressure max.	100, 200, 400, 600
Switching differential	0.4 ... 2.4 (fixed), 1 ... 6 (fixed), 12 ... 40 (fixed), 15 ... 50 (fixed), 5 ... 15 (fixed)
Brand	Trafag

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Datasheet