Medenus RSP255 Pilot Operated Gas Pressure Regulator & Shut Off Valve

**Stainless Steel Expansion Vessel for Potable Water Applications** The Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels are expertly designed to accommodate the increased load within a water system as water heats and expands. These expansion vessels play a crucial role in maintaining safe operating levels by effectively preventing pressure build-up in both sealed heating systems and cold water systems. Featuring a replaceable membrane, these vessels prevent water from coming into contact with the steel shell, thereby avoiding corrosion and contamination, ensuring that the water remains safe for human consumption. The replaceable membrane also allows for easy servicing without the need to remove the vessel, enabling quick and efficient in-situ maintenance. **Features and Benefits:** - **Corrosion-Resistant Design:** The stainless steel bolted flange prevents corrosion, ensuring durability and longevity. - **Quiet Operation:** The extra-wide membrane opening helps reduce noise resulting from restricted flow. - **Protective Internal Membrane:** Prevents any direct contact between water and the steel shell to stop internal corrosion. - **Versatile Capacity Range:** Available in sizes from 2 to 5000 litres, suitable for a variety of applications. - **Easy Servicing:** All models come equipped with a replaceable membrane, allowing for servicing without vessel removal. - **Pre-Charge Valve:** Convenient for topping up air pressure. - **Hot and Cold Water Compatibility:** Designed specifically for hot and cold water use only. **Specifications:** - **Capacity:** 24 Litres - **Colour:** White - **Pre-Set Pressure (Bar):** 3 - **Max Pressure (Bar):** 10.0 - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 489mm - **Diameter:** 280mm - **Water Connection:** 3/4" MBSP - **Miscellaneous:** Comes complete with wall bracket and accessories - **Product Code:** XVES050065 **Materials:** - **Shell:** Epoxy Coated Steel - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS approved for tanks up to 1000 litres - CE marked in accordance with Directive PED 97/23/CE - TÜV Certified - Materials for 1000 - 5000 litre models comply with BS 6920 Enhance your potable water system with the Reliance Valves Aquasystem Expansion Vessel, designed for efficiency, safety, and ease of maintenance.

The Resideo Flanged Two-Way Linear Valve (DF) is a single-seated valve designed for the modulating control of hot or chilled water, as well as steam, within heating, ventilation, and air conditioning (HVAC) systems. These valves are specifically engineered for high differential pressure applications, such as district heating. They can be seamlessly operated by the linear actuators in the ML64... and ML74... series.

Special Features:

• Pressure-balanced plug for enhanced stability
• Nodular iron body with durable flanged end connections
• Low seat leakage rate to ensure efficiency
• Metal-to-metal seating for longevity and reliability
• Self-adjusting packing that maintains performance
• Precise positioning for cutting-edge temperature control
• Direct-coupled electric configuration for straightforward installation

Product Codes:

DF15B0.25CI, DF15B0.4CI, DF15B0.4NI, DF15B0.63CI, DF15B0.63NI, DF15B1.0CI, DF15B1.0NI, DF15B1.6CI, DF15B1.6NI, DF15B2.5CI, DF15B2.5NI, DF15B4.0CI, DF15B4.0NI, DF15C0.4, DF15C0.63, DF15C1.0, DF15C1.6, DF15C2.5, DF15C4.0, DF15D0.25, DF15D0.4, DF15D0.63, DF15D1.0, DF15D1.6, DF15D2.5, DF15D4.0, DF20B4.0CI, DF20B6.3CI, DF20B6.3NI, DF20C6.3, DF20D6.3, DF25B10CI, DF25B10NI, DF25C10, DF25D10, DF32B16CI, DF32B16NI, DF32C16, DF32D16, DF40B25CI, DF40B25NI, DF40C25, DF40D25, DF50B40CI, DF50B40NI, DF50C40, DF50D40, DF65B63CI, DF65B63NI, DF65C63, DF65D63, DF80B100CI, DF80B100NI, DF80C100, DF80D100, DF100B160CI, DF100B160NI, DF100C160, DF100D160, DF125B250CI, DF125B250NI, DF125C250, DF150B360CI, DF150B360NI

This expertly crafted valve exemplifies reliability and performance, making it an ideal choice for professionals seeking efficiency in HVAC systems.

Features & Benefits

• Offers precise and accurate flow regulation for optimal performance. • User-friendly handwheel operation accompanied by a numerical indicator for straightforward adjustments. • Integrated orifice and test points eliminate the need for a separate Differential Regulation Valve (DRV) and metering station. • WRAS Approved for use with drinking water up to 85°C. • Ensures positive flow control across all handwheel settings. • The FODRV guarantees an accuracy of ± 5% on all settings, providing reliable flow regulation and measurement.

Specification

• Complies with BS7350: 1990 standards. • Operated via handwheel for ease of use. • Features a numerical indicator for clear visibility. • Inside screw non-rising handwheel design. • Incorporates a characterising regulating disc for effective flow management. • Includes an integral fixed orifice for enhanced reliability. • Supplied with two Figure 631 test points for convenient monitoring. • Flow charts available to assist in system design. • End connections are threaded for compatibility. • Available in sizes 1 to 2" taper threaded as per BS EN 10266 (ISO 7-1), previously BS 21. • Sizes 1/2" and 3/4" comply with ISO 228 parallel standards. • Also available in sizes DN15 and DN20 when combined with compression adaptors suitable for copper pipes in accordance with BS EN 1057 R250 (half hard). • Regarded as a WRAS Approved Product.

Pressure/Temperature Rating

• Please refer to the datasheet for detailed specifications.