Globe Style Check Valve (DRVZ)

Model NO.: DRVZ Connection Form: Flange Function: Nrvz Silence Flow Direction: Reversing Application: Water Industrial Usage Trademark: KQ or OEM Origin: Shanghai China Material: Cast Iron Structure: Spring Sealing Form: Bellows Globe Valve Standard: JIS Pn:1.0,1.6MPa or 125lb ,150lb: Dn32~Dn300 Specification: ISO Quality Management System HS Code: 8481804090   Silence Lift Check Valve

Brief introduction:
The silence resilient check valve is applied to the vertical pipelines in which medium flow runs upwards and the back-wards flowing are effectively stopped.  It could be widely used in water-supply system and drain system and it works silence.

Features:
Professional design
The inner cavity of valve is designed as streamline shape, which can effectively stop the turbulence. The spherical surface is introduced to form the front of disc and cone contact for the seating couple; these structures will extremely the shock force of medium and decrease the resistance coefficient of flow.  Thin shell structures is employed when design the diversion component to ensure the laminar flow and greatly drop the weight.  The reasonable open height and cavity space enable the obtaining of maximum area of flow section.  It can avoid occurring of the air chamber; the valve parameter Cv is improved.
Excellent proof corrosion characteristics
Internal and external epoxy resin coating.                    
Reliable hygiene principles
Epoxy resin and rubber comply with hygiene standard, the trim, such as disc, spring, etc., are made of stainless steel.
    
Main part & material
Body, Line: GGG50 with internal and external epoxy resin coating
Disc: GGG50 or casting steel
Guiding stem, Spring: 1Cr17Ni12Mo2Ti, Stainless steel
Guiding bushing: Bronze CuAI10Fe3
Flange washer, O-ring: NBR, EPDM or FPM

Technical Specification
-Nominal diameter:50~350mm     
-Nominal pressure:1.0/1.6Mpa
-Strength testing pressure:1.5/2.4Mpa
-Sealing testing pressure:1.1/1.76Mpa

DN	L	Flange dimensions comply with GB/T17421.6-1998
		O		C		g		f	b		n-d
		1.0MPa	1.6MPa	1.0MPa	1.6MPa	1.0MPa	1.6MPa		1.0MPa	1.6MPa	1.0MPa	1.6MPa
50	120	165	165	125	125	99	99	3	19	19	4-19	4-19
65	150	185	185	145	145	118	118	3	19	19	4-19	4-19
80	180	200	200	160	160	132	132	3	19	19	8-19	8-19
100	229	220	220	180	180	156	156	3	19	19	8-19	8-19
125	254	250	250	210	210	184	184	3	19	19	8-19	8-19
150	267	285	285	240	240	211	211	3	19	19	8-23	8-23
200	292	340	340	295	295	266	266	3	20	20	8-23	12-23
250	330	395	405	350	355	319	319	3	22	22	12-23	12-28
300	356	445	460	400	410	370	370	4	24.5	24.5	12-23	12-28
350	381	505	520	460	470	429	429	4	24.5	24.5	16-23	16-28

Contact us if you need more details on Check Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Valve、Control Valve. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Check Valve