PHB 2026 Vol-1
A-53
●재질
Body and insert
Zinc plated carbon steel
ASTM A216 WCB
Stem seals
Antistatic R-PTFE
Vented ball
Austenitic stainless steel
AISI 316
DN65 (2½")
Austenitic stainless steel
AISI 316
Stem
DN25 - DN50 (1" - 2")
Martensitic stainless steel
AISI 420
Seats
Carbon and graphite reinforced PTFE
PDR 0.8
● 밸브 계수
구경
DN25 (1")
DN32 (1¼")
DN40 (1½")
DN50 (2")
DN65 (2½")
Kv 값
30
40
81
103
197
Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156
DN40 키 조작식 보일러 블로우다운 밸브, PN40 플랜지식, 탄소 강화 시트 및 스테인리스강 키 포함. ● 사양 작성방법
예 : 1 off Spirax Sarco DN40 KBV21i key operated boiler blowdown valve having PN40 (F4) flanged connections. ●주문방법
TI-P405-47 / EMM Issue 3
Page 3 of 7
KBV21i, KBV40i 수동식 보일러 블로우다운 밸브
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