вступ
This manual provides essential information for the proper installation, operation, and maintenance of your LASCO 439-250 PVC Threaded Reducer Bushing. Please read these instructions carefully before use to ensure safe and effective application within your plumbing system.
Продукт закінченийview
The LASCO 439-250 is a Schedule 40 PVC threaded reducer bushing designed to connect pipes of different sizes. It features a 2-inch Male Pipe Thread (MPT) on one end and a 1.25-inch Female Pipe Thread (FPT) on the other, allowing for a secure and leak-free reduction in pipe diameter within plumbing systems. Constructed from durable Polyvinyl Chloride (PVC), it is suitable for various non-pressure and low-pressure applications.

Image: The LASCO 439-250 PVC Threaded Reducer Bushing, showing its threaded ends and hexagonal body for wrench application.
Технічні характеристики
| Специфікація | Деталь |
|---|---|
| матеріал | Полівінілхлорид (ПВХ) |
| Номер деталі | 439-250 |
| Outer Thread Size | 2 inches (MPT) |
| Inner Thread Size | 1.25 inches (FPT) |
| Розміри продукту (Д x Ш x В) | 2.6 x 1.5 x 1.5 дюймів |
| Вага товару | 16 унцій (1 фунт) |
| Тип різьби | Національний трубний конус |
| Стиль нитки | Трубна різьба |
| Система вимірювання | дюйм |
Налаштування та встановлення
Follow these steps for proper installation of the reducer bushing:
- Приготування: Ensure all pipe ends are clean, free of debris, and properly threaded. Inspect the reducer bushing for any manufacturing defects or damage before installation.
- Thread Sealant Application: Apply an appropriate thread sealant (e.g., PTFE tape or pipe dope suitable for PVC) to the male pipe threads of the larger pipe and the reducer bushing. Ensure even coverage for a watertight seal.
- Initial Threading: Hand-tighten the 2-inch MPT end of the reducer bushing onto the larger pipe's FPT connection. Then, hand-tighten the 1.25-inch MPT end of the smaller pipe into the FPT connection of the reducer bushing. Ensure threads are aligned to prevent cross-threading.
- Остаточне затягування: Using a strap wrench or appropriate pipe wrench, carefully tighten the connections. Do not overtighten, as this can crack PVC fittings. Tighten until snug and leak-free. Typically, 1 to 2 full turns past hand-tight is sufficient for PVC.
- Перевірка герметичності: After installation, pressurize the system and inspect all connections for leaks. Address any leaks immediately by re-tightening or re-applying sealant.
Інструкція з експлуатації
Once properly installed, the LASCO 439-250 PVC Threaded Reducer Bushing functions passively as a permanent part of your plumbing system, facilitating the flow of fluids between pipes of different diameters. No active operation or adjustments are required after installation.
Технічне обслуговування
Regular maintenance for this PVC fitting primarily involves periodic visual inspection. Check for any signs of wear, cracks, or leaks around the threaded connections. If any issues are observed, the fitting or sealant may need to be replaced. Clean the exterior with mild soap and water if necessary to remove dirt or grime.
Усунення несправностей
- Витік на з'єднанні:
- Причина: Insufficient thread sealant, improper tightening, or damaged threads.
- рішення: Depressurize the system, disassemble the connection, clean threads, reapply sealant generously, and re-tighten carefully. Inspect threads for damage; replace the fitting if threads are compromised.
- Difficulty in Threading:
- Причина: Misalignment, cross-threading, or debris in threads.
- рішення: Ensure proper alignment before threading. Clean threads thoroughly. Do not force connections; if resistance is met, unscrew and re-attempt.
Інформація про безпеку
- Always wear appropriate personal protective equipment, including eye protection, when working with plumbing systems and tools.
- Ensure the system is depressurized and drained before attempting any installation, maintenance, or repair.
- Do not use this PVC fitting for applications exceeding its pressure and temperature ratings. PVC is generally not suitable for hot water or high-pressure systems. Refer to PVC pipe and fitting specifications for limits.
- Use tools appropriate for PVC fittings to avoid damage. Avoid using metal wrenches directly on PVC without protection, as this can cause cracking or deformation.
- Consult local plumbing codes and regulations for proper installation practices in your area.
Гарантія та підтримка
For warranty information or technical support regarding your LASCO 439-250 PVC Threaded Reducer Bushing, please refer to the manufacturer's official webсайт або зверніться безпосередньо до їхнього відділу обслуговування клієнтів. Зберігайте чек про покупку як підтвердження покупки для будь-яких гарантійних претензій.





