Niezgodka Type 5 Relief Valve

**Product Specification** **Sizes Available:** DN80, DN100 **Connections:** Flanged PN16 Inlet x Flanged PN16 Outlet **Materials Used:** Gunmetal Body / Bonnet: Cast Iron **Disk:** Joints & Seals: Diaphragm: NBR, Seals: NBR **Compatible Media:** Gases and liquids, including water, neutral non-viscous fluids, compressed air, nitrogen, and non-combustible gases. Please note: not suitable for steam. **Maximum Inlet Pressure:** 16 Barg **Outlet Pressure Range:** 0.5 to 9 Barg **Cv Range:** **Maximum Temperature:** 100°C **Certifications:** PED 97/23/CE category I **Additional Information:** (a) Built-in gauge ports (b) Minimum pressure drop between inlet and outlet: 1 Barg (c) For assistance with sizing, please use our sizing calculator available in the TECHNICAL INFO section of the menu above. --- This revised description is crafted with UK English terminology and aims to optimise for search engine rankings through strategic keyword placement.

The PREL101003 Reliance Water Controls (RWC) 101 Series Sealed Heating System Pressure Relief Valve is designed to safely discharge water from the system at a predetermined pressure, providing essential protection against over-pressurisation within heating systems. The Reliance 101 Series Pressure Relief Valves are widely utilised as a crucial safety feature in sealed heating installations. Upon installation, the valve is calibrated to the correct pressure. If the pressure within the system exceeds this set threshold, the valve automatically opens, releasing water into the atmosphere. This functionality effectively prevents the system from reaching hazardous pressure levels that could potentially cause damage and pose risks to individuals nearby.

Features and Benefits:

• Diaphragm design enhances resistance to scaling, resulting in a longer lifespan.
• The straightforward removal of the single-piece cartridge allows easy access for cleaning or replacement.
• Set relief pressure range from 2.0 bar to 6.0 bar provides flexibility in system design.
• Available with FSBP or MBSP/FBSP connections for optimal installation versatility.
• Exclusively suitable for heating applications.

Specification:

• Size: 1/2" x 1/2"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Hot pressed DZR Brass
• Medium: Water
• Set Pressure: 3 Barg
• Temperature: +140°C
• Product Code: PREL101003
• Notes: WRAS approved

Ensure the safety and efficiency of your heating system with the PREL101003 Reliance Water Controls Pressure Relief Valve—an essential component for maintaining safe operating conditions.

The CONCOA 202 Series is a five-port, chrome-plated forged brass, single-stage cylinder regulator designed for primary pressure control of non-corrosive, liquefied, or high-purity inert gases (up to grade 4.5). It is ideal for applications where minor outlet pressure fluctuations from cylinder depletion are acceptable, or where inlet pressure is stable or under 500 PSIG (34 BAR).

Features:

• 316L stainless steel diaphragm prevents inboard diffusion

• CAPSULE® seat with 360° integral filtration

• Standard relief valve protects diaphragm and gauge

• Helium leak-tested for integrity

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR)

• Body: Chrome-plated forged brass; Bonnet: Chrome-plated die-cast zinc

• Gauges: 2½" (63 mm) plated case

• Seat: PTFE; Filter: 10-micron sintered bronze

• Temperature range: -40°F to 140°F (-40°C to 60°C)

• Cv: 0.2; Diaphragm: 316L stainless steel

• Helium leak integrity: 1 × 10⁻⁸ scc/sec

• Internal seal: PTFE; Ports: 1/4" FNPT

• Compliance: Meets/exceeds CGA G-4.1, PED 2014/68/EU, ANSI/ASME B40.1, CRN OH5216