NABIC 568 & 568SS Anti-Vacuum Valve

Refrigeration service valves are vital components in refrigeration systems, designed to simplify maintenance, servicing, and troubleshooting. These valves enable the isolation and control of refrigerant flow to specific areas of the system, thereby facilitating essential tasks such as charging, evacuating, and diagnosing without the need to shut down the entire system.

Specification

Sizes: 1/4" to 1/2"

Connections: Butt weld or screwed

Materials: Steel or stainless steel

Medium: Glycol-based cold brine refrigerants per EN 378 p. 1, including NH3, R134a, R290 (propane), R507, and blends with refrigerant oil, suitable for neutral gas and liquid media, as well as glycol-based cold brine.

Pressure Rating: PS40, PS63 (dependent on type)

Temperature: -60 to +150 °C Max

Design: [Please provide specific design notes if applicable]

Optimise your refrigeration maintenance with our top-quality service valves, ensuring reliable performance and easy management of your refrigerant systems.

Our turbine flowmeters are specifically engineered for hydraulic circuit testing, capable of withstanding pressures of up to 400 bar. These robust devices are essential for monitoring flow, temperature, and pressure with precision and reliability.

Specifications

• Sizes: 2 inch
• End Connections: IS061/62 Code 61 (SAE 3000) or IS061/62 Code 62 (SAE 6000)
• Body Connections: 5/8”-18 UNF port for flow sensor, and 2 x 1/4” BSP ports for pressure and temperature sensors
• Pressure Ratings: Maximum of 210 Barg or 400 Barg
• Flow Range: 5 to 750 litres per minute
• Materials: Stainless steel rotor and body (please refer to the datasheet)
• Accuracy: ±2.0% linearity (0.2% version available) / ±0.1% repeatability
• Temperature Range: Standard -30°C to 110°C / High temperature -30°C to 232°C

Note: Each unit comes with individual calibration certificates for your peace of mind.

Optimise your hydraulic testing with our high-performance turbine flowmeters, designed for ultimate reliability and accuracy.

The FSSCDS Sanitary Rupture Disc is a compression-loaded, micro-scored disc that opens in petal form with four, six, or more radial score lines to provide fast, reliable pressure relief. Designed to meet the strict hygiene requirements of 3-A SSI, it is ideal for use in the pharmaceutical, food, and biotechnology industries, where product purity and cleanability are critical. The disc is manufactured entirely from AISI 316L stainless steel (with alternative alloys available on request) and features a smooth process-side surface, making it fully compatible with CIP and SIP cleaning processes for maintaining aseptic conditions.

Installation is simplified using FDA and USP Class VI approved PTFE gaskets, compliant with 3-A and EU 10/2011 standards, allowing easy integration into sanitary clamp connections such as Tri-Clamp and Tank Connection fittings. The disc activates within milliseconds under overpressure, opens cleanly without fragmentation, and in many applications can operate under full vacuum without additional supports. It also offers excellent corrosion resistance and optional linings for enhanced chemical protection.

Key Specifications:

• Sizes: 1" (DN25) to 8" (DN200)

• Materials: Stainless steel, Alloy 201, 400, 600, C276, Titanium, Tantalum

• Burst Pressure Range: 3–25 bar g (depending on size and material)

• Krl: 1.33

• Tolerance: ±5% to ±20%

• Operating Margin: Up to 85%

• Gasket Temperature Limit: PTFE up to 265°C

• Fragmentation: None – clean opening

• Use Under Valve: Yes

• Corrosion Resistance: Very good

• Linings: Optional

• Holder: FSHTC

• Rupture Detection: Electrical

• Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD