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Home > Products > Check Valve > Globe Style Silent Lift Check Valve (DRVZ)

Globe Style Silent Lift Check Valve (DRVZ)

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Basic Info

Model No.:  DRVZ

Product Description

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

Globe Style Silent Lift Check Valve (DRVZ)
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

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