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Product picture for NOZ-CHEK® High Performance Nozzle-Type Non-Slam Check Valves

NOZ-CHEK® High Performance Nozzle-Type Non-Slam Check Valves

Noz-Chek® valves are specifically designed for fast-reversing systems where backflow is a constant concern.

Features And Benefits

Technical Details

Applications

Literature

Certificates

Videos

Features And Benefits

Minimizes the damaging effects of water hammer in fluid systems.
Removal of chatter associated with conventional valves in reciprocating compressor service.
Protects rotating equipment from damage due to flow reversal.
Minimizes pressure loss in piping systems.
Spring tested to over 25 million cycles.
Engineered product which can me optimised to suit system flow conditions.

Technical Details

DESIGN FEATURES

Few moving parts — Ensuring valve longevity and proven reliability.
Axial Flow – Disc and seating configuration give streamlined flow path with venturi effect, resulting in minimal pressure drop.
Short stroke of spring-assisted disc — Inlet flow velocity moves disc axially with short stroke. In response to flow velocity reduction, a compressed spring initiates valve closure and provides quick response.
Spring options — Choice of spring affects critical velocity and valve response. Selection is made on engineering evaluation of specific applications. In absence of this data, a standard spring will be provided.
Anti-rotation device – Secures disc assembly and eliminates the risk of disc rotation

SIZE RANGE

¾” – 84” / DN20-2100

PRESSURE RATINGS

Class 150 – 4500
API 6A Class 2000 – 15,000

Applications

Gas Transmission

Compressor Suction/Discharge/Bypass

Power Generation

Feedwater
Cooling water
Blowdown
Steam

Petrochemical / Chemical Processing

PDH
Extreme Units
Propylene Units
Ethylene

Hydrocarbon Processing

Catalytic Cracking
Hydrotreating

Water Transmission

Pipeline
Pump Compressor Station
Desalination (SWRO)

Renewable Energy

Solar
Wave Energy

FPSO

LNG

Literature

Brochure

NOZ-CHEK® Overview – US

Flyer

NOZ-CHEK® Non-Integrated Diffuser Design - US

NOZ-CHEK® Non-Integrated Diffuser Design - EN

Certificates

Download Certificates

API 598 Valve Pressure Testing and Inspection
ASME B16.34 Pressure/Temperature Ratings
BS 6364
API 6D Pipeline Valves
API 6A Production Valves
API 6FD

Videos

Product Animations and Video Library