D1E4NL-4DER-D-V91A-WE Double Block & Bleed Valve by Alco Valves
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The Alco Valves D1E4NL-4DER-D-V91A-WE is a Double Block & Bleed Valve featuring a single piece body design with a ball, needle, ball valve configuration and a floating ball. It includes a 1/2" NB ANSI Class 1500RF inlet, a 1/2" NPT Female ASME B1.20.1 outlet, and a 1/2" NPT Female ASME B1.20.1 vent/drain supplied with loose plugs. The valve has a 10mm (3/8") bore size and incorporates L7M/7M integral flange studs and nuts secured with a 316 pin. Constructed with an ASTM A350 LF2/A105(MFR PMA) body material and ASTM A479 316( MFR PMA) trim materials, it utilizes DEVLON, Graphite, and Endura V91A seats, seals, and O-rings. It operates with stainless steel lever and T-bar handles in a firesafe design. The unit handles a maximum pressure of Class 1500, a minimum pressure of 6barg (87psi), a maximum temperature of 150ºC, and a minimum temperature of -20ºC.
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Characteristics
| Manufacturer | Alco Valves |
|---|---|
| Country | |
| Part number | D1E4NL-4DER-D-V91A-WE |
| Inner Code | 3828632 |
Technical specification
| Product type | Double Block & Bleed Valve |
|---|---|
| Valve Configuration | Ball, Needle, Ball |
| Body Construction | Single Piece Body , Floating Ball |
| Inlet | 1/2" NB ANSI Class 1500RF |
| Outlet | ASME B1.20.1, 1/2" NPT Female |
| Vent/Drain | ASME B1.20.1, 1/2" NPT Female (Plugs Supplied Loose) |
| Bore Size | 10mm (3/8") |
| Integral Flange Studs/Nuts | L7M/7M secured in place using 316 pin |
| Body Material | ASTM A350 LF2/A105(MFR PMA) |
| Trim Materials | ASTM A479 316( MFR PMA) |
| Seats/Seals/O-Rings | DEVLON/Graphite/Endura V91A |
| Max Pressure | Class 1500 |
| Min Pressure | 6barg (87psi) |
| Max Temperature | 150ºC |
| Min Temperature | -20ºC |
| Operator/Handles | St/St Lever & T-bar Handles |
| Design | FIRESAFE DESIGN |