1S Series – Filters for Liquid and Gas Applications
Product Code: 1S Series - Filters for Liquid and Gas Applications

The 1S Series (formerly Nowata) cartridge filter housings are available in 1, 2, 3 or 4 cartridge length models. These filters are ideal for many high pressure, low volume applications. All models are made of carbon steel and have a 2000 psi working pressure. These filters are commonly used by the petroleum production industry in secondary recovery water flood applications.

A filter is normally placed at each individual input well just ahead of the meter. The cast steel head mounts directly in the flow line. The filter may be mounted in any position. The fluid or gas enters one side of the head and is channeled to the area around the cartridge. The fluid or gas passes through the depth type cartridge into the center tube and out the other side of the head.

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CARTRIDGE FILTER HOUSINGS

High Pressure, Carbon Steel Filters for Industrial Liquid and Gas Applications

Waterflood Operations, Pollution Control, Glycol Dehydrator Filtration

The direction of flow, from dirty inlet to clean outlet, is indicated by an arrow cast in the filter head. The body is connected to the head by a two bolt, grooved coupling and sealed with a double lip gasket. All 1S series models are made of carbon steel. For added corrosion resistance, the 1SP series models are available with epoxy lined, carbon steel bodies. Each model is equipped with a 1/4 inch internal pipe thread drain in the bottom of the body. The 1S series is well suited for many filter applications requiring low cost, durable, easily operated filters.

• Available in 1, 2, 3 or 4 cartridge length models
• 2000 psi working pressure
• Cast carbon steel head
• Carbon steel or epoxy lined carbon steel body
• Brass or carbon steel internals
• Grooved closure
• Buna gasket
• Gas or fluid filtration
• Water flow rates to 24 gpm
• Glycol flow rates to 15 gpm
• 1” internal pipe thread inlet/outlet connections
• 1/4” internal pipe thread drain is standard
• Optional 1/4” internal pipe thread differential pressure ports

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Model No. of Cartridges Weight (lbs) A B C(1) D E(2) Inlet/Outlet F
1S1N
1SP1N
1 19 16 15 11½ 1″ FNPT
1S2N
1SP2N
2 27 26 25 21½ 1″ FNPT
1S3N
1SP3N
3 35 36 35 31½ 1″ FNPT
1S4N
1SP4N
4 43 46 45 41½ 1″ FNPT

Dimensions in inches except where noted. Due to our continuing program
of product improvement, specifications are for reference only and subject to change without notice. Dimensions are approximate values and not intended for piping specifications.

NOTES:

(1) Additional clearance required to remove housing body

(2) Body Diameter
(*3) 1/4 Inch FNPT Drain

(*4) 1/4 Inch FNPT DP ports

1S Series
The carbon steel cast head has 1 inch, in-line, internal pipe thread inlet and outlet connections. The unit’s tubular body is also made of carbon steel. The head and body are connected by a two bolt, grooved coupling and a Buna gasket. The standard material for the internal fittings, center tube and retainer is brass, ideal for water applications.
Optional carbon steel internals are also available for glycol applications.

OPTIONAL CONSTRUCTION FEATURES
Body Drain
All 1S and 1SP models have, as standard, a 1/4″ internal pipe thread drain in the body. Models are also available with a 1/2″ internal pipe thread drain on special order.
Differential Pressure Connections
Two 1/4″ internal pipe thread connections in the head are available on special order. They can be used for two gauges or a DP indicator to monitor cartridge performance.
Gasket Material
Buna gasket is provided as standard.
Other materials are available.

 

1SP Series
The 1SP series has all of the same construction features as the 1S series with the addition of epoxy lining to the tubular steel body. The epoxy lined body should be used when the corrosion rate is great enough to considerably shorten the life of the plain steel units. The 1SP models are normally used for salt water and mildly corrosive fluids.
For information on filters with 316 stainless steel construction, see the 1U series datasheet.
Internal Materials
Standard internals are made of brass. Optional plated carbon steel internals are also available. Other materials such as 316 stainless steel are available by special order.
Non-Code Construction
The 1S series is not available with ASME Code Stamp due to the use of the grooved coupling closure system.
See the 1SY series datasheet for ASME Code construction.

High Pressure, Carbon Steel Filters for Industrial Liquid and Gas Applications

Waterflood Operations, Pollution Control, Glycol Dehydrator Filtration