소개
This instruction manual provides essential information for the proper installation and maintenance of the Febco 905022 Rubber Repair Kit. This kit is specifically designed for use with Febco 765 PVB (Pressure Vacuum Breaker) backflow preventers, sized 1-1/2 inches and 2 inches. Adhering to these instructions will help ensure the correct function and longevity of your backflow prevention device.
안전 정보
Always prioritize safety when performing plumbing work. Failure to follow safety guidelines can result in injury or property damage.
- 물 공급을 차단하세요: Before beginning any work, ensure the main water supply to the backflow preventer is completely shut off and depressurized.
- 적절한 개인 보호 장비(PPE)를 착용하세요. This includes safety glasses and gloves.
- Depressurize the system: Open test cocks or downstream valves to relieve any residual pressure in the device.
- 전문가와 상담하세요: If you are unsure about any step or lack experience with plumbing repairs, consult a qualified plumber.
- Handle parts carefully: Rubber components can be delicate; avoid sharp objects that could damage them.
패키지 내용
The Febco 905022 Rubber Repair Kit typically includes the following components:
- 고무 디스크
- 오링
- 개스킷

그림 1: Components of the Febco 905022 Rubber Repair Kit. This image displays the various rubber seals and gaskets included in the kit, essential for maintaining the integrity of the backflow preventer.
설치 지침
These instructions provide a general guide for replacing the rubber components in your Febco 765 PVB. Always refer to the specific service manual for your Febco 765 PVB model for detailed disassembly and reassembly procedures.
- 시스템 준비: Ensure the water supply is off and the system is depressurized as described in the Safety Information section.
- Disassemble the Device: Carefully disassemble the Febco 765 PVB according to the manufacturer's service manual. This typically involves removing the bonnet and poppet assembly.
- 오래된 구성 요소 제거: Gently remove all old rubber seals, O-rings, and gaskets from the device. Pay close attention to their original placement and orientation.
- 깨끗한 표면: Thoroughly clean all sealing surfaces within the backflow preventer. Remove any debris, mineral deposits, or old gasket material. Ensure surfaces are smooth and free of imperfections.
- 새로운 구성 요소 설치: Install the new rubber components from the 905022 kit into their corresponding positions. Lightly lubricate O-rings with a silicone-based lubricant (safe for potable water) to aid installation and prevent pinching. Ensure all parts are seated correctly and not twisted.
- 장치 재조립: Reassemble the Febco 765 PVB, following the reverse order of disassembly. Ensure all bolts and connections are tightened to the manufacturer's specified torque settings.
- 물 공급 복구: 메인 급수 밸브를 천천히 열어 시스템의 압력을 다시 높이십시오.
- 누출 확인: Carefully inspect all connections and seams for any signs of leaks.
설치 후 점검
After installation, perform the following checks to ensure proper operation:
- 시각적 검사: Confirm there are no visible leaks from any part of the backflow preventer.
- 기능성 테스트: If equipped, perform a backflow prevention test according to local codes and manufacturer guidelines. This typically requires a certified backflow tester.
- 압력 점검: Verify that system pressure is stable and within normal operating parameters.
문제 해결
수리 키트를 설치한 후 문제가 발생하면 다음 사항을 고려하십시오.
- Leaks from connections: Ensure all connections are properly tightened and that O-rings/gaskets are correctly seated and not pinched. Re-check torque specifications.
- Continuous discharge from relief valve: This could indicate an issue with the internal components, such as a damaged or improperly seated rubber disc or O-ring. Disassemble and inspect the components for proper installation and condition.
- Water hammer or unusual noises: Ensure all air has been purged from the system after repressurization.
- Device not passing test: If the device fails a backflow test, it may indicate an incorrect installation of the repair kit components or other internal issues. Professional inspection is recommended.
명세서
| 모델 번호 | 905022 |
| 상표 | Febco |
| 재료 | 고무 |
| 호환 장치 | Febco 765 PVB |
| 호환 가능한 크기 | 1.5인치, 2인치 |
| 패키지 크기 | 7.1 x 5 x 0.2 인치 |
| 품목 무게 | 0.8 온스 |
보증 및 지원
For specific warranty information or technical support regarding the Febco 905022 Rubber Repair Kit or Febco 765 PVB devices, please contact Febco directly through their official web웹사이트 또는 고객 서비스 채널을 이용하세요. 보증 청구를 위해 구매 영수증을 보관하십시오.
For further assistance, you may visit the official Febco web대지: www.febcoonline.com