The Wilkins 38-ZW3870XLT is a point-of-use thermostatic mixing valve designed for scald protection at sinks and sensor faucets with precise temperature control.

Key Specifications:

• Size: 3/8 Inches
• Maximum Working Pressure: 145 psi
• Outlet Temperature Range: 95-115°F (35-46°C)
• Notable Certifications: ASSE 1070, cUPC, CSA B125.70
• Flow Rate: 0.06-3.10 GPM

Other Related Variants:

• 38-ZW3870XLT-4P: 4-port configuration with additional cold outlet port for individual or dual outlet applications

Materials:

• Low Lead Cast Bronze body (ASTM B 584) with Chrome Plating (ASTM B 456 Service Condition #2)
• Low Lead Brass internal components (ASTM B 927 UNS C27450)
• Polysufone Piston
• Noryl GFN2 Guide Tube
• 300 Series Stainless Steel Spring
• Viton Seals
• Acetal Co-Polymer Checks

Typical Installation:

The Zurn 38-ZW3870XLT is designed to be installed at the point of use under sinks and sensor faucets. The device is designed to be installed at a single outlet and may be used to supply individual outlets when there is sufficient supply pressure. It is suggested to use ball valves on the hot and cold inlet supplies.

Standards Compliance:

ASSE Listed 1070; cUPC Listed; CSA Certified B125.70; NSF/ANSI/CAN 61-9 Q≤1 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

Features & Benefits:

• Scald Protection: Provides rapid response and precise temperature control meeting ASSE 1070 standards for fixtures, sinks, lavatories and bathtubs to prevent scalding injuries.
• Ultra Low Flow Compatibility: With a minimum flow rating of 0.06 GPM, the valve provides proper scald protection when used with ultra low flow faucet aerators.
• Integrated Safety Features: Includes integral check valves and strainer screens on hot and cold supply lines for enhanced protection and reduced maintenance.
• Lead-Free Construction: Chrome plated low lead cast bronze body meets NSF/ANSI/CAN 61-9 requirements, ideal for residential and commercial applications where lead-free valves are required.

FAQ

Q: What is the temperature adjustment range for the 38-ZW3870XLT?

A: The outlet temperature range is adjustable from 95-115°F (35-46°C) with a set temperature accuracy of +/- 3°F. The temperature must be field set during installation.

Q: What is the maximum pressure differential allowed between hot and cold inlets?

A: The maximum pressure differential is 15 psi between hot and cold inlets. The maximum working inlet pressure is 145 psi.

Q: What are the hot and cold supply temperature requirements?

A: The hot supply temperature range is 120-195°F max (49-90.5°C), and the cold supply temperature range is 40-75°F (4.4-23.8°C).

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