Dh44y Low Temperature Check Valve

• Media: Water-Vapour Oil
• Temperature: Low Temperature
• Material: Stainless Steel Carbon Steel Brass
• Connection Form: Flange Welding
• Structure: Swing
• Pressure: High Pressure, Medium Pressure and Low Pressure
• Model NO.: DH44Y
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Hard Seal and Soft Seal
• Flow Direction: Unidirection
• Standard: DIN GB ANSI Bsw JIS
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8481804090
• Production Capacity: 9999

Product Description

Executive standard

Project	Design and Manufacturing	Structural length	Flange standard	Inspection and testing
Standards	API 600	ANSI B16.10	ANSI B16.5	API 598

Materials for Main Parts

Part name	Body, bonnet , disc, rocker	Pin, nut	Double-ended nuts	Sealing surface	Stuffing
Materials	A352-LCB, A352-LC3, A351-CF8	A182-F304	Cr-Mo steel	Cobalt base complex	Tef-lon

Main performance specifications

Model number	Nominal pressure PN (Lb)	Normal temperature test pressure		Low temperature seal test pressure (MPa)	Working temperature and applicable medium
		Housing	Seal
DH44Y-150 (Lb)	150	3.0	0.6	0.6	-46 ° C, ammonia, liquid nitrogen, propane	-101 ° C ethylene, carbon dioxide	-196ºC Methane, liquefied natural gas
DH44Y-300 (Lb)	300	7.5	0.6	0.6
DH44Y-600 (Lb)	600	15.0	0.6	0.6

Main outline dimensions and connection dimensions

Nominal diameter NPS	in	1 1/2	2	2 1/2	3	4	6	8	10	12	14
	mm	40	50	65	80	100	150	200	250	300	350
DH44Y-150Lb
L		165	203	216	241	292	356	495	622	698	787
H		154	175	177	191	222	325	383	448	540	560
Kg		14	18	22	30	46	82	116	158	238
DH44Y-300Lb
L		241	267	292	318	356	445	533	622	711
H		172	198	204	222	277	346	412	465	562
Kg		18	26	34	45	64	105	167	272	375