Filters, Traps, & Silencers / Vacuum Process Filters & Liquid Separators / Liquid/Mist Removal /

STS Series: Straight Through Liquid Separator

Solberg’s STS Series is a high-performance liquid and particulate separator engineered to protect vacuum pumps from harmful contaminants. This durable solution features a multi-stage baffle system and directional airflow changes to efficiently separate liquids and large debris from the inlet air stream. As liquids accumulate, a built-in float capsule automatically limits flow at maximum capacity, preventing pump damage. The STS Series features a clear see-through bucket, allowing for quick visual inspection of liquid levels to simplify maintenance and prevent overflows. Designed for reliability and easy integration, the STS Series ensures optimal pump performance and longevity in demanding applications.

OVERVIEW, DOCUMENTS, AND MORE

Units

USMetric

Specifications

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Connection Size

Up to 2.5" 3" to 6" 8" and Larger

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Model	Inlet Connection Size (in.)	Outlet Connection Size (in.)	Connection Type	Flow (SCFM)	Dim A (in.)	Dim B (in.)	Dim C (in.)	Dim D (in.)	Dim E (in.)	Holding Capacity (gal)	SelectorConnectionSizeImperial
STS-100C	1	1	NPSC	25	15.89	1.5	7	11.09	10	0.4	Up to 2.5"	Add To Cart
STS-125C	1.25	1.25	NPSC	40	15.89	1.5	7	11.09	10	0.4	Up to 2.5"	Add To Cart
STS-150C	1.5	1.5	NPSC	60	15.89	1.5	7	11.09	10	0.4	Up to 2.5"	Add To Cart
STS-200C	2	2	NPSC	105	18.57	2	9	13.05	8	1	Up to 2.5"	Add To Cart
STS-250C	2.5	2.5	FPT	115	18.57	2	9.36	13.05	8	1	Up to 2.5"	Add To Cart
STS-300C	3	3	FPT	240	21.28	2.7	13.5	14.77	10	2	3" to 6"	Add To Cart
STS-400C	4	4	FPT	250	20.48	2.7	13.5	14.77	10	2	3" to 6"	Add To Cart

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Connection Size Metric

Up to 2.5" 3" to 6" DN 80 and Larger

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Model	Inlet Connection Size (in.)	Outlet Connection Size (in.)	Connection Type	Flow (m3/hr)	Dim A (mm)	Dim B (mm)	Dim C (mm)	Dim D (mm)	Dim E (mm)	Holding Capacity (L)	SelectorConnectionSizeMetric
STS-101C	1	1	BSPP	42	404	39	178	282	254	1.6	Up to 2.5"
STS-126C	1.25	1.25	BSPP	68	404	39	178	282	254	1.6	Up to 2.5"
STS-151C	1.5	1.5	BSPP	102	404	39	178	282	254	1.6	Up to 2.5"
STS-201C	2	2	BSPP	178	472	51	229	332	203	3.7	Up to 2.5"
STS-251C	2.5	2.5	BSPP	195	472	51	238	332	203	3.7	Up to 2.5"
STS-301C	3	3	BSPP	407	541	69	343	375	254	5.7	3" to 6"
STS-401C	4	4	BSPP	424	520	69	343	376	254	5.7	3" to 6"

Overview
Product Documents
Alternative Solutions

Features

Compact design for space restrictions; min. service area
Inlet above element for extended element life & maintenance intervals
Corrosive resistant cast aluminum top with machined connections and integrated baffle design
Shatter-resistant polycarbonate drop down bucket
Stainless steel float capsule for emergency shut-off
Stainless steel perforated float tube (SS expanded metal on 1” to 1 1/2”)
Clamp style swing bolts on 3” & 4” standard
1” drain

Technical Specifications

Vacuum Rating: medium vacuum service
Temp (continuous): min ‐15°F (‐26°C) max 220°F (104°C)

Options

Cast head protective coatings
Heavy duty carbon steel buckets available (CTS Series)
Clamp style swing bolts on 1” to 2 1/2”
Spool piece extender
Taps for gauges and mounting brackets
Pressure drop gauge

Applications

Soil Venting/Remediation
Vacuum Pumps & Systems
Food Processing
Chip Processing

Accessories-STS

Liquid Removal Maintenance Manual

STS Datasheet

STS Datasheet (Metric)

LRS Series: Right Angle Liquid Separator

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