Single & Multi-Bag Filter Housings (MTO)

This item is produced on a Make-to-Order (MTO) basis to meet your specific requirements. Kindly allow 4 to 8 weeks for manufacturing and delivery.

with Swing-Bolt Closure

PARSWOOD™ Bag filter housings are engineered for high-purity, industrial-grade filtration performance. Constructed from AISI 304 or AISI 316L stainless steel, these housings deliver long-lasting corrosion resistance and reliability in demanding applications.

Product Overview

• Single-bag housings accept standard Size #1 or Size #2 filter bags.
• Multi-bag housings available in 2, 3, 4, 6, 8, and 12-bag configurations (Size #2 bags).
• Multiple inlet/outlet porting types and sizes available.
• Standard features include upstream & downstream gauge ports and a lid-mounted vent port.

The rugged swing-bolt closure ensures fast and safe access for bag change-outs, minimizing downtime. Single-bag models include an adjustable leg assembly for installation flexibility.

Key Features

• Heavy-duty swing-bolt lid for easy maintenance
• Rated for 150 psi (10 bar) operating pressure
• Designed to meet ASME Pressure Vessel Code requirements
• Optional ASME “U” Stamp available
• Handles flow rates up to 1,200 GPM
• Surface passivation reduces risk of weld-line corrosion

Applications

Suitable for a wide range of industrial processes, including:

• Water, aqueous solutions, oils, and fine chemicals
• Food & beverage production (juices, syrups, ingredients, bottled water)
• General manufacturing and process-fluid filtration

Product Quality & Certifications

• Manufactured under an ISO 9001:2015 certified quality management system
• NSF/ANSI 61 & 372 certified
• Halal certified
• Certificate of Quality available upon request

Materials of Construction

• Shell: AISI 304 or AISI 316L stainless steel
• Seal Options: EPDM (standard), Silicone, NBR, FKM
• Surface Finish: Glass-beaded (standard)
• Optional Surface Quality: Industrial electropolish

Operating Conditions

• Maximum Operating Temperature: 121°C (250°F)
• Design Pressure: 10 bar (150 psi)

Single Round Drawings/Dimension

Filter Housing Dimensions and Connections (FNPT Type)

Code	Name	Specification	Connection mode
N1	Inlet	2"FNPT	Thread
N2	Outlet	2"FNPT	Thread
N3	Vent	1/4"FNPT	Thread
N4/N5	Pressure gauge	1/2"FNPT	Thread
N6	Drain	2"FNPT	Thread
Size	L (mm)	H (mm)	OD (mm)
#1	520	645	219
#2	888	1013	219

Note: The first section details the connections, and the second section gives the overall physical dimensions (Length 'L', Height 'H', and Outer Diameter 'OD') in millimeters for both Size #1 and Size #2 filter housings.

 Filter Housing Connections and Dimensions (Flange Type)

Code	Name	Specification	Connection mode
N1	Inlet	2"Flange	Flange
N2	Outlet	2"Flange	Flange
N3	Vent	1/4"FNPT	Thread
N4/N5	Pressure gauge	1/2"FNPT	Thread
N6	Drain	2"FNPT	Thread
Size	L (mm)	H (mm)	OD (mm)
#1	520	645	219
#2	888	1013	219

Notes on Flange Specification:

The main process connections (Inlet and Outlet) use the following standard:

• Flange Type: WN (Weld Neck)
• Pressure Rating: Class 150 RF (Raised Face)
• Standard: ASME-B16.5-2020

Multi Round Drawings/Dimension - Flange Type

Code	Name	Specification	Connection mode
N1	Inlet	2", 3", 4", 6"Flange	Flange
N2	Outlet	2", 3", 4", 6"Flange	Flange
N3	Vent	1/2"FNPT	Thread
N4/N5	Pressure gauge	1/2"FNPT	Thread
N6	Drain (2, 3-Round)	1"FNPT	Thread
N6	Drain (4, 6, 8, 12-Round)	2"FNPT	Thread
Number of Rounds	H (mm)	L (mm)	OD (mm)
2-Round	1459	1068	400
3-Round	1491	1075	450
4-Round	1703	1249	550
6-Round	1776	1320	650
8-Round	1820	1264	750
12-Round	2094	1442	950

Notes on Flange Specification:

The main process connections (Inlet and Outlet) use the following standard:

• Pressure Rating: Class 150 RF (Raised Face)
• Standard: ASME-B16.5-2020

The connection sizes for the Inlet/Outlet vary by the number of rounds (i.e., the capacity of the housing), ranging from 2" up to 6". The Drain (N6) size also changes depending on the capacity.

Filter Housing Ordering Code Key

Category	Code/Qty	Description/Standard
Bag Size	S1	Size #1
	S2	Size #2
Bag Quantity	1	1 bag
	2	2 bags
	3	3 bags
	4	4 bags
	6	6 bags
	8	8 bags
	12	12 bags
Main Ports	2FN	2" FNPT (Thread)
	3FN	3" FNPT (Thread)
	2TC	2" TC (Tri-Clamp/Tri-Clover)
	2F	2" RF Flange
	3F	3" RF Flange
	4F	4" RF Flange
	6F	6" RF Flange
Material	304	AISI 304
	316L	AISI 316L
Seals	E	EPDM
	B	NBR (Buna-N)
	S	Silicone
	V	FKM (Viton)
Options/Standard	EPM	Electropolish interior & mechanical polish exterior
	U	ASME Code stamped; NB listed

Example Model Number Construction:

A housing for Size #2 bags, with 4 bags total, using 3" RF Flange connections, made from 316L stainless steel, with FKM (Viton) seals, and requiring ASME Code stamping would be ordered as:

LEAD TIME: 6-8 Weeks

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