Type VRD Direct Acting Relief Valve



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STAINLESS STEEL
RELIEF VALVES

Type VRD

Type VRCD

Type 14450

Types 14520 – 14580

Type 14340 low pressure

14540, 14640 semi-capsule

Pressures up to 1380 bar (20,000psi)
Seal options to cover a wide range of process fluids
316 stainless steel construction

The VRD direct acting pressure relief valve has been designed to provide accurate pressure control in systems operating at pressures up to 1380 bar (20,000 psi).

A number of seal material are available, making the valve compatible with a wide range of process fluids.

The valve feature all stainless steel construction for use in harsh environments.


Working temperature

Nitrile: –20°C to +80°C.
(other materials refer to Marshalsea technical department)


Part Numbering System

VRD = Relief Valve - Direct Acting Product Code
  SS = 316 Stainless Steel (NACE Compliant - Inlet side only) Body Material
    0000 = Maximum working pressure (bar) Maximum Working Pressure
0100 = 20 - 100 bar
0360 = 80 - 360 bar
0540 = 300 - 540 bar
0800 = 450 - 800 bar
1040 = 700 - 1040 bar
1380 = 1000 - 1380 bar
    000 = Orifice size in millimetres plus one decimal place Orifice Size
Ports
032 = 3.2mm (100, 360 & 540 bar)
025 = 2.5mm (800, 1040 & 1380 bar)
    B14F = 1/4" BSP Female Inlet Connection
N14F = 1/4" NPT Female
M38F = 3/8" MP Tube Female
  Other options available on request
    B14F = 1/4" BSP Female Outlet Connection
N14F = 1/4" NPT Female
  Other options available on request
    N = Nitrile seals -20°C to +80°C Seal Material
V = Viton seals -10°C to +80°C
  Other options available on request
    S = Stainless Steel Seat Material
    0800
 
= 800 bar
   Set pressure
Set Pressure (Optional)
     
VRD - SS   - 0800 - 032 - M38F - B14F - N   - S - 0800   Ordering Example

Dimensions


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