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Throttle valve for main feed up water system

Product Model：

Place of Origin：

Release Date：2026-09-30

Views：1

Mobile Phone：+86-18661736801

Keywords：Quick throttle valve

Product Details

Description

l Adopt straight flow body. There are two kind of body, free forging and casting body

l Pressurized seal design, more reliable the seal.

l If boiler is running lower 50% capacity, we can get the enough feed water pressure through this valve.

l The valve quickly operate, meet the boiler lower capacity working condition.

The sealing surface is welded with SS. Wear resistant and corrosion resistant, reliable sealing, long service life.

Product structure drawing

Type: DL960Y DL965Y L965Y

Design standard

Design & manufacture	End to end dimension	End dimension	Inspection and test	Press-temp ratings
NB/T47044	NB/T47044	NB/T47044	NB/T47044	NB/T47044
ASME B16.34	ASME B16.10	ASME B16.25	API 598	ASME B16.34

Main parts material

Body	Bonnet	Gate (Cage)	Four piece ring	Stem
A105/WCB	A105/WCB	A105/WCB	38CrMoAlA	38CrMoAlA
F36/WB36	F36/WB36	A105/F36/WCB	38CrMoAlA	38CrMoAlA

Technical specification and end dimension and overall dimension

Nominal Pressure	PN250			PN320			PN420			1500Lb			2000Lb			2500Lb
Shell test MPa	37.5			48			63			37.5			48			63
Nominal diameter	d	D	L	d	D	L	d	D	L	d	D	L	d	D	L	d	D	L
225	215	278	800	210	278	800	205	278	800	215	278	800	210	278	800	205	278	800
250	255	330	900	250	330	900	245	330	900	255	330	900	250	330	900	245	330	900
300	280	355	1000	275	355	1000	270	355	1000	280	355	1000	275	355	1000	270	355	1000
350	340	430	1100	335	430	1100	330	430	1100	340	430	1100	335	430	1100	330	430	1100
400	375	487	1150	370	487	1150	360	487	1150	375	487	1150	370	487	1150	360	487	1150
450	420	538	1200	415	538	1200	405	538	1200	420	538	1200	415	538	1200	405	538	1200
500	480	565	13001200	470	565	13001200	460	565	13001200	480	565	13001200	470	565	13001200	460	565	13001200

Remark: Above data only for reference, we can provide other different design according to the customer’s special requirements.

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