Manifold Mount, Diaphragm Relief Valve

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Specifications

Material Construction 303 Stainless, Brass
Seal Material Options EPDM, Viton®, Buna-N
Cracking Pressure Range 3-30 psig
Weight 25g in brass and stainless steel
Port Size / Type 10-32 external threaded outlet port
Product Family Regulators
Availability Usually Ships Within 2-4 Weeks
Configurable Options 7

Ordering Options

Part number format: RVD8-[Adjustment Style on Cap]N[Body Style]-[Pressure Setting Range]-[Body Material][Seals and Diaphragm Material][Cleaning Options][Lubrication Options]. Each bracketed segment is replaced by the code of the option chosen below; an option with no code is the standard choice and adds nothing.

Option Code Choice
Adjustment Style on Cap 1 Slotted Screw With 3/16” Hexagonal Lock Nut
2 Knurled Knob With 3/16" Hexagonal Lock Nut
3 Knurled Knob With 3/4" dia. Knurled Lock Disc
4 Slotted Screw With 3/4" dia. Knurled Lock Disc
Body Style 1 Standard Body
6 2 in. High Resolution Diaphragm
Pressure Setting Range 0 - 0 to 5 psig (0.3 bar)
1 - 0 to 10 psig (0.7 bar)
2 - 0 to 20 psig (1.4 bar)
3 - 0 to 30 psig (2.1 bar)
4 - 0 to 40 psig (2.8 bar)
Body Material None Brass
3 303 Stainless Steel
Seals and Diaphragm Material
About this option
None Buna-N
V Fluorocarbon (FKM, Viton®)
E EPDM
Cleaning Options
About this option
None Standard Cleaning
I Instrument Grade Cleaning
Lubrication Options
About this option
None Standard Lubrication
X No Lubrication
K Krytox 240AZ Lubrication

Overview

Description: Beswick’s RVD8 series miniature diaphragm relief valve is an excellent choice for applications requiring a valve which opens on rising pressure. The design offers compactness, light weight and high accuracy.  Performance is similar to the RVD series.

Features: Manifold mount configuration.

Max Supply Pressure Rating: 80 psig

Cracking Pressure Range: Recommended for cracking pressures in the 3-30 psig range. The large diaphragm sensing area and frictionless design, make it especially well suited for low cracking pressures, below 30 psig.  For applications requiring a higher cracking pressure please consult an applications engineer for additional details.

Approximate Weight: 25g in brass and stainless steel.  Weight will vary slightly, depending on configuration. Selecting the 2 inch. high resolution cap option adds approximately 50-60g to total weight.

Porting: 10-32 external threaded outlet port.  0.050″ (1.27mm) diameter inlet ports. 

Note: Care must be taken during installation to avoid shearing the manifold mount thread.  Recommended torque spec is 7-9 in lbs.

Material: Brass or 303 stainless steel body.  Both versions include an 18-8 stainless steel spring in the flow path.

Features

  • Adjustable relief pressure setting.
  • Manifold mount configuration.