الصمامات
الصمامات هي الأجزاء الميكانيكية التي تتحكم في تدفق المياه وضغطها داخل النظام أو هي مكونات أساسية لنظام الأنابيب الذي ينقل السوائل و الغازات و الأبخرة ، إلخ … تتوافر أنواع مختلفة من الصمامات مثل البوابة ، الكرة ، الفراشة . و صمامات التحكم تخفف الضغط. كل من هذه الأنواع لديها عدد من النماذج ، كلٍ منها لديها ميزات مختلفة و قدرات وظيفية . بعض الصمامات تعمل ذاتيًا بينما البعض الآخر يتم تشغيلها يدويًا أو باستخدام محرك هوائي أو هيدروليكي.
Grade
- ASTM A126 CLASS – B
Material
- Cast Iron & Ductile Iron
Size Range
- From 2”up to 14”
Working Pressure
- 200 (PSI)
Grade
- ASTM B62 C83600 & BS 1400 LG2
Material
- BRONZ, BRASS, & CAST IRON
Size Range
- From 1/2” up to 2”
Working Pressure
- 300 (PSI)
Grade
- ASTM B62 C83600 & BS 1400 LG2
Material
- NBR SEAT
Size Range
- From 1/2” up to 2”
Working Pressure
- 300 (PSI) 20.7 (BAR)
Grade
- ASTM B62 C83600 & BS 1400 LG2
Material
- BRONZE ,BRASS, & CAST IRON
Size Range
- From 1/2” up to 4”
Working Pressure
- 300 (PSI)
FITTINGS STANDARDS:
JASCO UPVC and CPVC fittings are manufactured according to ASTM standards (American society for testing and materials). JASCO fittings are available under the brand name JASCO PIPES.
JASCO UPVC and CPVC pipes and fittings are manufactured according to ASTM standards (American society for testing and materials). JASCO pipes and fittings are available under the brand name JASCO PIPES.
JASCO CPVC pipes for hot water application are manufactured from 1/2 inch to 2 inch. These pipes are available in standard length of 6 meters.
JASCO UPVC pipes are manufactured form 1/2 inch to 8 inch. These pipes are available in standard length of 6 meters. Other lengths are considered on customer’s request.
ASTM D- 1784:
This specification covers Rigid PVC compound used for molded fittings.
ASTM D- 1785:
It covers the UPVC pipe requirements and test methods for schedule 40 and schedule 80.
ASTM D- 2466:
It coves schedule 80 UPVC plane socket pressure fittings.
ASTM F-441:
It covers schedule 80 CPVC pressure pipes.
ASTM F-439:
It covers schedule 80 CPVC socket pressure fittings.
ASTM D- 2665:
It covers schedule 40 DWV-UPVC pipes.