AS-Schneider Instrument Monoflanges are close coupled to a pre-installed primary isolation valve to provide a compact instrument Double Block and Bleed Valve or are used when primary isolation valves with an OS & Y Bolted Bonnet are not required. The needle valves of the Instrument Monoflanges are provided with a screwed bonnet. The Standard Pressure Instrument Connection is 1/2 NPT female, the Standard Process Connections are provided by 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.
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.: MNA-NDALN4-SC
MN | Instrument Monoflange, Block & Bleed Type |
A | Packing: PTFE |
- | |
ND | ASME Flange Size: 3/4", RF |
A | ASME Flange Class: 150 |
LN4 | Outlet Connection: 1/2 NPT Female |
- | |
S | Material: 1.4401 / 1.4404 / 316 / 316L |
C | Vent Connection: 1/4 NPT Female |
Block Block & Bleed Double Block & Bleed
BIFlange x ThreadMSFlange Size (in) |
Flange Class | ØD (mm) | Flange Face | Approx. Weight (kg) |
|
RF x mm | RTJ x mm | ||||
1/2 | 150 | 88.9 | 33.6 | - | 1.6 |
1/2 | 300 | 95.3 | 33.6 | 37.6 | 2.0 |
1/2 | 600 | 95.3 | 38.4 | 37.6 | 2.0 |
1/2 | 900 / 1,500 | 120.7 | 38.4 | 38.4 | 2.9 |
1/2 | 2,500 | 133.4 | 38.4 | 38.4 | 3.7 |
3/4 | 150 | 98.6 | 33.6 | - | 2.0 |
3/4 | 300 | 117.3 | 33.6 | 38.4 | 2.9 |
3/4 | 600 | 117.3 | 38.4 | 38.4 | 2.9 |
3/4 | 900 / 1,500 | 130.0 | 38.4 | 38.4 | 3.5 |
3/4 | 2,500 | 139.7 | 39.4 | 39.4 | 4.2 |
1 | 150 | 108.0 | 36.6 | 38.4 | 2.6 |
1 | 300 | 124.0 | 36.6 | 38.4 | 3.3 |
1 | 600 | 124.0 | 38.4 | 38.4 | 3.3 |
1 | 900 / 1,500 | 149.3 | 38.4 | 38.4 | 6.8 |
1 | 2,500 | 158.8 | 42.4 | 42.4 | 5.7 |
1 1/2 | 150 | 127.0 | 36.6 | 38.4 | 3.8 |
1 1/2 | 300 | 155.4 | 36.6 | 38.4 | 5.3 |
1 1/2 | 600 | 155.4 | 38.4 | 38.4 | 5.3 |
1 1/2 | 900 / 1,500 | 177.8 | 39.4 | 39.4 | 6.8 |
1 1/2 | 2,500 | 203.2 | 51.4 | 52.9 | 11.5 |
2 | 150 | 152.4 | 36.6 | 38.4 | 5.1 |
2 | 300 | 165.1 | 36.6 | 39.9 | 5.7 |
2 | 600 | 165.1 | 38.4 | 39.9 | 6.2 |
2 | 900 / 1,500 | 215.9 | 45.4 | 46.9 | 11.6 |
2 | 2,500 | 235.0 | 58.4 | 59.9 | 17.0 |