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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