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Description
Union Bonnet Needle Valves Standard
  • Union Bonnet Needle Valves Standard
  • Union Bonnet Needle Valves Standard
  • Union Bonnet Needle Valves Standard

Union Bonnet Needle Valves

Type A1

AS-Schneider Union Bonnet Needle Valve Type A1 is available with a lot of options. The valve is designed for severe service. Following design features characterize the A1 valve: External Stem Thread, Valve Stem with cold rolled threads, Non-rotating Needle and back seat design and an Integral Valve Seat.

Bore Size: 0.433" (11 mm)

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

Connections, materials 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.: A1B-A4PA4P-SAK

A1 Union Bonnet Needle Valve Type A1
B Packing: Graphite
-
A Inlet Connection: Butt Weld End
4 Pipe Dimension: 1/2" Pipe
P Wall Thickness: Schedule 80
A Outlet Connection: Butt Weld End
4 Pipe Dimension: 1/2" Pipe
P Wall Thickness: Schedule 80
-  
S Material: 316H
A Vent Connection: Without
K Operation Options: T-Handle
Union Bonnet Needle Valves
Union Bonnet Needle Valves Drawing (arrangement)
Ordering Information
BI
Union Bonnet Needle Valves Drawing (arrangement)
MS

* Welded connections in material 1.4903 / F91 / 1.7335 / 1.7380 require post weld heat treatment (PWHT) at around 700 - 750°C. The valve head unit must be removed prior to the heat treatment to avoid damages. See the installation, operation and maintenance manual for instructions. We recommend to order These valves with 100 mm pipe extensions (Option V - Box 15) to avoid the removal of the valve head Units.

Mounting Bracket Kits and Accessories
AS-Schneider Union Bonnet Needle Valve Type A1 is available with a lot of options. The valve is designed for severe service. Following design features characterize the A1 valve: External Stem Thread, Valve Stem with cold rolled threads, Non-rotating Needle and back seat design and an Integral Valve Seat. The robust design of the valves gives long service life and optimum operating comfort. The AS-Schneider Union Bonnet Needle Valves, as standard, are rated to 500 bar (7,252 psi).
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