Description

Process Monoflanges

AS-Schneider Process Monoflanges (A frequently used term is also Slimline Monoflange) are designed to replace the traditional primary isolation valve and are close coupled to the process piping flange, for connecting process to instruments. The primary isolation valve needs to be of process design, therefore it's a valve with OS&Y Bolted Bonnet. The secondary isolation valve and the bleed valve are provided with screwed bonnets. The combining of piping and instrument valves into a single unit has benefitted various markets. The Standard Pressure Instrument Connection is 1/2 NPT female, the Standard Process Connections are provided with Flange Connections acc. to ASME B 16.5. AS-Schneider is providing axial, radial or dual outlet types for either Horizontal or Vertical Flange Mounting.

The Monoflanges are available as Block, Block & Bleed or Double Block & Bleed designs.

A diverse range of options and the relevant accessories are available, please see below Mounting Bracket Kits and Accessories.

Connections, materials, valve head unit designs and further options are available, please see below Ordering Information or more detailed under:

General InformationExample for a typical product acc. to the below mentioned Ordering Information:

Part No.: MGB-NNELN4-SC

MG	Process Monoflange, Double Block & Bleed Type
B	Packing: Graphite
-
NN	ASME Flange Size: 2", RF
E	ASME Flange Class: 900 / 1.500
LN4	Outlet Connection: 1/2 NPT Female
-
S	Material: 1.4401 / 1.4404 / 316 / 316L
C	Vent Connection: 1/4 NPT Female

Process Monoflanges - Weights and Dimensions

Block Block & Bleed Double Block & Bleed

Process Monoflanges Drawing (arrangement) 1

Flange x Thread

Flange Size (in)	Flange Class	ØD (mm)	Flange Face		Approx. Weight (kg)
Flange Size (in)	Flange Class	ØD (mm)	RF x mm	RTJ x mm	Approx. Weight (kg)
1/2	150	98.6	36.6	-	2.5
1/2	300	98.6	36.6	40.6	2.6
1/2	600	98.6	41.4	40.6	2.6
1/2	900 / 1,500	120.7	41.4	41.4	3.5
1/2	2,500	133.4	41.4	41.4	4.3
3/4	150	98.6	36.6	-	2.6
3/4	300	117.3	36.6	41.4	3.5
3/4	600	117.3	41.4	41.4	3.5
3/4	900 / 1,500	130.0	41.4	41.4	4.1
3/4	2,500	139.7	41.4	41.4	4.8
1	150	108.0	36.6	41.4	3.0
1	300	124.0	36.6	41.4	3.9
1	600	124.0	41.4	41.4	3.9
1	900 / 1,500	149.3	41.4	41.4	5.1
1	2,500	158.8	42.4	42.4	6.1
1 1/2	150	127.0	36.6	41.4	4.1
1 1/2	300	155.4	36.6	41.4	6.0
1 1/2	600	155.4	41.4	41.4	6.0
1 1/2	900 / 1,500	177.8	41.4	41.4	7.4
1 1/2	2,500	203.2	51.4	52.9	11.4
2	150	152.4	36.6	41.4	5.4
2	300	165.1	36.6	42.9	6.4
2	600	165.1	41.4	42.9	6.9
2	900 / 1,500	215.9	45.4	46.9	12.0
2	2,500	235.0	58.4	59.9	17.5

Ordering Information

Mounting Bracket Kits and Accessories

Compact Gauge Syphons	Pipe Plugs
Swivel Gauge Adapters	Hex NipplesHN Type
Vent ValvesVS or VT Type

Further InformationAS-Schneider Process Monoflanges are designed to replace the traditional primary isolation valve and are close coupled to the process piping flange, for connecting process to instruments. The primary isolation valve needs to be of process design, therefore it's a valve with OS & Y bolted bonnet. The secondary isolation valve and the bleed valve are provided with screwed bonnets. The Standard Pressure Instrument Connection is 1/2 NPT female, the Standard Process Connections are provided with Flange Connections acc. to ASME B 16.5. AS-Schneider is providing axial, radial or dual outlet types for either Horizontal or Vertical Flange Mounting. The innovative design of the valve head units gives long service life and a smooth, low-torque operation. The AS-Schneider Monoflanges, as standard, are rated to 420 bar (6,092 psi). AS-Schneider also provides the Monoflanges for sour gas service (acc. to NACE MR0175/MR0103 and ISO 15156), degreased and lubricated for oxygen service as well as Monoflanges for fugitive emission applications.

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