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직접 작동 감압 밸브

직접 작동 감압 밸브는 하나의 컴팩트한 바디에서 하류 압력을 설정 스프링과 평형시키므로, 파일럿 라인이나 외부 감지가 필요 없습니다 — 공기, 물, 경량 공정 라인의 안정적·중간 부하에 맞는 단순한 응답입니다. 범위는 구상주철(EN-GJS-450/10) 바디 및 보닛에 스테인리스 시트, 부싱, 패스너, 55SiCr6 강재 설정 스프링, EPDM 씰, 상류 PN16 또는 PN40, 하류 1.5~6 bar 범위입니다. 선정은 하류 설정값 밴드, 수요 변동에 대한 유량 안정성, 엘라스토머 및 스프링 재질의 온도 한계에 따라 결정됩니다. 메커니즘 문헌은 단일 운동 힘 평형(하나의 다이어프램에서 설정 스프링 대 하류 압력), 설정값 폐쇄 응답, 구성 요소(입·출구 포트, 스프링, 감지 다이어프램), 파일럿 작동 용량 대비 빠른 응답 포지셔닝, 상수도 서비스 임무, 참조 사양 범위(나사형 1-13 kgf/cm2; 다이어프램 플랜지형 2-5 kgf/cm2, 모두 0-60°C), 수평 또는 수직 마운팅을 추가합니다.

다음 패밀리에 속함: 감압 밸브 패밀리

최종 업데이트: 2026-11

견적 요청

패밀리 사양

Minimum operating differential pressure	1 bar
Valve body material	Ductile Iron (EN1563 EN-GJS-450/10)
Seat material	Stainless Steel (EN10088 1-4301)
Service temperature range	-10°C to 70°C
upstream pressure	PN16, PN40
downstream pressure	1.5 to 6 bar
spring materials	Steel (1.7104 55siCr6)
Seal material	EPDM
working principle	Single valve mechanism directly actuated by a sensing element (diaphragm or piston); no pilot loop
sensing element	Diaphragm or piston responds directly to outlet (downstream) pressure
spring function	Setting spring provides the opposing force against the diaphragm; its tension sets the desired outlet pressure
response character	Simple construction with quick response; widely used for steady moderate loads
outlet regulation	Holds downstream pressure steady against upstream supply fluctuations
setpoint response	When downstream pressure exceeds set point the diaphragm compresses the spring, closing the valve to bring pressure back down
construction elements	Inlet port, outlet port, setting spring acting on the diaphragm, and the diaphragm that maintains the set downstream pressure
flow stability	Direct-acting designs give reliable performance under varying flow rates and pressures
municipal water application	Installed on municipal service lines to protect household appliances and reduce leak risk
setpoint envelope example	Threaded direct-acting execution example: set range 1-13 kgf/cm2, 0-60°C, air/water media
diaphragm variant envelope	Diaphragm-type direct-acting flanged execution example: set range 2-5 kgf/cm2, 0-60°C, freshwater media
mounting orientation	Stable outlet pressure with easy horizontal or vertical installation; stainless builds suit water supply and food processing
dra steam envelope	Stainless Steel (ASTM A351 Gr.CF8) Steam Air 1.6 220 0.2 - 1.6 0.014 - 1.0 610 kg/h
dra air envelope	Air 1.0 100 0.2 - 1.0 0.014 - 0.4 460 m 3 /h
dra soft seat	Soft seat for extra-tight sealing
dra reduction ratio	Capable of a 30:1 pressure reduction
dra built in screen	Built-in screen ensures extended trouble-free operation
dra wetted construction	Wetted parts are of all stainless steel construction with high durability and corrosion resistance for long service life
dra secondary stability	Stable secondary pressure
dra applications	Compact heat exchangers and compact steam processes
drb steam capacity	3/8" - 2" NPT 15-250 2,141 lbs/hr
drb liquid capacity	3/8" - 2" NPT 15-250 116 GPM
drb gas capacity	3/8" - 2" NPT 15-250 1,189 SCFM
drb seat disc	hardened stainless steel seat and disc with a guided stem for extended service life
drb internal strainer	An internal strainer protects against dirt and scale
drb diaphragm steam	phosphor Bronze diaphragm (Model Code B ) specifically designed for steam service
drb diaphragm liquid	for water, air, or other liquid service and have a working temperature range up to 300oF
drb droop	a variation of up to 10% of initial set pressure depending on changes in flow through the valve
drb double spring	a wider adjustable pressure range which may be desirable in some applications
drb body material	heavy duty cast iron bodies and internal strainer
drb setpoint adjustment	Downstream pressure is set by turning an adjustment screw that increases or decreases spring force above a diaphragm
drc size connections	1/2", 3/4", 1", 11/4" * Connections NPT, SW, 150# & 300# FLG
drc body material	Stainless Steel CF8M Seat & Disc Hardended 420 Stainless Steel
drc pressure envelope	Max Inlet Pressure 300 PSIG Min Inlet Pressure 15 PSIG Max Differential Pressure 125 PSI Min Differential Pressure 15 PSI
drc rating	NPT: 300 PSIG @ 450 F 150# FLG 195 PSIG @ 400 F 300# FLG 300 PSIG @ 450 F
drc no sensing line	This style of regulator does not require an external sensing line
drc strainer integral	Integral stainless steel strainer on 1" and 11/4" only
drc seat hardness	Hardened stainless steel seat and disc for extended service life (55 Rc)
drc diaphragm steam	Stainless Steel Diaphragms are offered for steam service
drc diaphragm liquid	designed for water, air, gases and other liquid service and have a working temperature range up to 300F
drc spring range example	0-10 OSS-12-N-13-S OSS-12-N-13-V 10 1/2" 10-50
drd outlet ranges	357 28-85 56 1339 (1338) 357 80-140 80
drd lead free cert	less than 0.25% of lead by weight and be certified to NSF/ANSI 372
drd asse standard	Pressure reducing valve shall comply with ASSE Standard 1003
drd construction	a bronze valve cover threaded to a brass body, pressure adjustment screw, 416 stainless steel floating seat, EPDM seal with Elastomeric diaphragm and internal stainless steel strainer (1000 micron)
drd union connections	double union end connections
drd water temperature	accept water temperatures up to 158F
drd gauge ports	Pressure gauge port standard on both sides
drd y strainer advice	recommended to install a Y strainer upstream of the pressure reducing valve
Combined body/bonnet material list	Ductile Iron (EN1563 EN-GJS-450/10)
flanged size range	DN50 to DN150 (sizes: DN50, DN65, DN80, DN100, DN125, DN150)
outlet pressure ranges	1.5-6 bar, 5-12 bar, 12-24 bar
valve weight	12 to 74 kg across DN50 to DN150 (12/19/24/34/56/74 kg by size)
threaded size range	G1/2" to G2" (DN15 to DN50): 15(1/2"), 20(3/4"), 25(1"), 32(1-1/4"), 40(1-1/2"), 50(2")

범위·출처 비고

set range envelope	Set-range envelope: tenant downstream band is 1.5-6 bar, while the referenced threaded execution spans 1-13 kgf/cm2 (about 1-12.7 bar) and the diaphragm flanged execution 2-5 kgf/cm2 (about 2-4.9 bar) - the tenant band sits between the two executions and relies on spring selections not evidenced on either page.
temperature envelope	Temperature envelope: tenant -10 to 70°C (EPDM seal) vs the referenced executions at 0-60°C - the tenant lower bound depends on the EPDM build rather than the referenced pages.
response framing	Response framing: simplicity/quick-response positioning vs pilot-operated capacity - direct-acting is the low-to-moderate load choice; the referenced industry guide also credits stable performance across varying flows, which does not remove the droop characteristic inherent to spring-diaphragm direct action.
construction detail split	Construction detail split: generic three-element framing (port/spring/diaphragm) vs the tenant ductile-iron body with stainless trim - material execution is tenant-specific and not covered by the referenced mechanism descriptions.