Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports

Product Details
Customization: Available
Media: Gas
Standard: Stainless Steel Regulator
Manufacturer/Factory & Trading Company
Diamond Member Since 2025

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  • Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports
  • Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports
  • Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports
  • Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports
  • Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports
  • Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports
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Overview

Basic Info.

Model NO.
NR31-S4F414
Certification
ISO
Temperature
High Temperature
Connection
Thread
Valve Seat
Single-Seat
Structure
Spring Diaphragm
Material
Stainless Steel
MOQ
1PCS
Certificate
ISO 9001
Seat
PFA
Size
1/4"Fnpt
Design
Dual-Stage
Transport Package
Carton
Specification
1/4"FNPT
Trademark
NAI-LOK
Origin
Shanghai
HS Code
8481100090

Product Description

Product Description

NAl-LOK brand was established in Shanghai in 2000, we focus on the production, research and development, salesof instrumentation valves, fittings, hose & tubing. 

 

Precision Dual-Stage Pressure  regulator - High-Capacity 0-3500psi Inlet to 0-250psi Outlet Control for Industrial & Critical Gas Applications"

Engineered for extreme pressure differentials, this dual-stage pressure  regulator delivers ultra-precise gas regulation, stepping down high-pressure inputs (0-3500psi) to stable, adjustable outputs (0-250psi). Ideal for aerospace, oil & gas, and high-pressure laboratory systems, its robust design ensures reliability under demanding conditions.

Key Features:
 Two-Stage Precision Control: Primary and secondary reduction stages eliminate pressure spikes, ensuring smooth, accurate output (±1% set point accuracy).
 Wide Pressure Range: Handles aggressive inlet pressures up to 3500psi while maintaining fine-tuned outlet control (0-250psi).
 High-Flow Efficiency: Optimized orifice design minimizes flow restriction, supporting rates up to 120 SCFM (configurable for higher demands).
Durable Construction: CNC-machined 316 stainless steel body with PTFE seals resists corrosion, wear, and gas permeation (compatible with inert, flammable, and toxic gases).
Safety Redundancy: Integrated overpressure relief valve and fail-safe diaphragm prevent downstream hazards.

Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports



We have the world's advanced processingequipment, testing equipment, class 1000 grade clean room to ensure quality control and on time delivery.We strive to develop, serve global customers and provide stable and reliable products.

We have the capability to manufacture and supply 4 different product categories, including:
1.General Instrumentation Valves and Fittings
2.High Purity & Ultra High Purity Products- NAI-LOK UHP PRODUCTS
3.Hose & Tubing
4.Special Alloy Valves
Nickel-Copper Alloy UNS N04400 (400 Series) Nickel-Copper Alloy Tube
600 Series Nickel-Chromium Alloys UNS N06600, UNS N06601, UNS N06625
800 Series Nickel-Iron-Chromium UNS N08800, UNS N08810, UNS N08811, UNS N08825
Pure Nickel Alloy - UNS N02200, UNS N02201
Corrosion-Resistant - UNS N10276 (HC276), UNS N06022 (HC22), UNS N06200, UNS N10665 (B2), UNS N10675 (B3)
High-Temperature - GH3030, GH3039
Other Alloys - UNS N08020, UNS N08021, S32205, S32750, S31254 (6Mo/6-Moly), 904L (N08904)

Nickel Alloy Seamless Tube:
400Series:UNS N04400 nickel-copper alloy tube
600Series:UNS N06600,UNS N06601,UNS N06625
800Series:UNS N08800,UNS N08810,UNS N08811,UNS N08825
Pure Nickel Alloy Tube:UNS N02200,UNS N02201
UNS N10276,UNS N06022,UNS N06200,UNS N10665,UNS N10675
ASTM B622 HC276 HC22 H B2 H B3

High Temperature Alloy:GH3030,GH3039
Other type Alloy:UNS N08020,UNS N0802
S32205 S32750  S31254 6 Mo 6-Moly Molybdenum
Super Austenite 904L N08904
 


Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports

e, and harsh industrial environments.
 

 
Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports
Nr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5portsNr31 Dual-Stage Pressure Regulator Industrial & Critical Gas Applications 1/4"Fnpt 4-5ports

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