플랜지 캐스팅 스틸 게이트 밸브, ~로 알려진 “플랜지 연결 API 캐스팅 스틸 게이트 밸브”, ANSI 클래스 150 ~ 2500에 적용 할 수 있습니다, 작업 온도 <600℃, 석유, 화학적인, 화력 발전소 및 파이프 라인의 기타 작업 조건.
미디어 용 플랜지 주철 스틸 게이트 밸브: 물, 기름, 증기, 등과 운영 방법이 있습니다: 수동, 기어 드라이브, 전기 같은, 영적인, 등.
플랜지 캐스팅 스틸 게이트 밸브 설치 요구 사항:
1.설치하기 전에, 밸브 캐비티 내부와 밀봉 표면을 확인하십시오., 그리고 먼지 나 모래 착지가 없는지 확인하십시오..
2.각 연결의 볼트는 고르게 조여야합니다.
3.포장의 밀봉을 보장하고 게이트의 유연한 개구부를 보장하기 위해, 포장 부품을 단단히 눌러야합니다.
4.밸브를 설치하기 전에, 밸브 유형을 확인하십시오, connection size and pay attention to the flow direction of the medium to ensure consistency with the valve requirements.
5.When installing the valve, the space required to drive the valve must be ensured.
6.The wiring of the driving device should be done in accordance with the wiring diagram.
7.The gate valve must be regularly maintained and not allowed to collide or squeeze so as not to affect the seal.
Flanged cast steel gate valve maintenance requirements:
The valve cleaning:
clean the general media with water can be. If the cleaning is harmful to health media, please understand its characteristics, and then choose the appropriate cleaning method.
Valve disassembly:
Before rusting, protect the processing surface of the valve seat, spool, stem and push rod and other precision parts, and then rusty parts of the exposed surface for rust removal treatment.
Valve seat:
if the seal surface rust and wear is small can be processed through mechanical processing, if serious damage, should be replaced with a new one. 하지만, after repair or replacement, regardless of the hard seal surface, must be polished and smoothed.
Valve stem:
the surface has been damaged can only be replaced with a new one.
Push rod:
guide device and sealing surface damage: the reverse-acting actuator needs to be replaced with a new actuator, the positive actuator can be repaired and used.
Compression spring:
If there is a defect that affects the strength (such as cracks), it must be replaced.
Damageable parts:
포장, gasket and O-ring. All parts need to be replaced every time you check them. Spool and diaphragm should also be inspected to prevent future cracks, signs of aging and corrosion, after inspection to decide whether to replace, but the diaphragm life is usually 2-3 연령.
Valve assembly pay attention to alignment:
Tighten the bolts on the diagonal, and then add lubricant to the sliding parts. After assembly, the product should be commissioned according to the factory test items and methods, and the compression force of the packing and the closing position of the spool can be adjusted during this period.