Backflow Preventer Check Valve for Water

• Media: Water
• Temperature: Ordinary Temperature
• Material: Cast Iron
• Connection Form: Flange
• Structure: Elevated
• Pressure: Ordinary Pressure
• Model NO.: HQCV
• Sealing Form: Gland Packings Globe Valve
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage
• End Standard: ASME B16.5 125lb
• Face to Face: API 594
• Inspection and Test: API 598
• Suitable Media: Water, Oil Gas
• Weight: Depend on Differenct Size
• Working Pressure: Pn10&Pn16
• Color: Red or Blue
• Stem: Cast Steel
• Transport Package: Ply Wooden Cases
• Specification: ISO
• Trademark: HQ
• Origin: Shandong, China
• HS Code: 8481300000
• Production Capacity: 10000set Per Month

Product Description

Backflow Preventer
 

Application: Fire alarming system, industrial valve, fire protection system, potable water system, sewage system

 

Product Characteristic

1.Straight-through structure, decompression principle type backflow preventer
2.Independent quick-closing double check valve + permanent decompression isolation chamber + drain valve
+ measurable hole = five-fold insurance function
3.Can prevent siphon backflow and back pressure backflow
4.Can be used for continuous water flow
5.Can prevent the backflow of toxic and contaminated fluids

Product Description

Optional Material

Body: QT450 / Stainless Steel 304

Cover: QT450 / Stainless Steel 304

Check Valves: Stainless Steel 304 / QT450

Relief Valve: Stainless Steel 304 / QT450

Supplied Specification

Size: DN40-DN300

DN40 & DN50 Threaded

DN50-DN300 Flanged

Pressure

PN10 & PN16

Medium & Temp.

Clean Water Temp.<80ºC

Detailed Photos

 

Packaging & Shipping

 

 

Installation Instructions

Cast iron valves
Type: Butterfly valves, Gate valves, Check valves, Global valves, Y strainer
Size: DN40-1200 or 1.5-48' or above
Working Pressure: PN10/16/20/25, 150LB-2500LB
Suitable temperature: -45c~150c
Standard:
(1)Design and manufacture: DIN3352, BS5163, BS5150, ANSI B16.34, API600, API6D, API609, EN593, GB, T12238
(2)End connection: ANSI B 16.1, ASME B16.5, B16.47, B16.25, B16.34, JISB2212-JISB2214, DIN2543-2550, EN1092, AS2129, ISO 5211
(3)Wall thickness: API600, BS1868
(4)Face to face (end to end): EN 558, ASME B16.10, DIN3202, ISO5752, JIS, API609, MSS, BS5155
(5)Inspection and test: API598, EN12266-1, BS6755, API6D, ISO5208
Materialfor main parts:
(1)Body: CI, DI, WCB, ALB, CF8, CF8M
(2)Disc: DI, ALB, C95400, Rubber lined Disc, 1.2501, 1.4529, CF8M, CF8, Hastelloy
(3)Stem: SS416, SS410, SS304, SS431
(4)Seat: NR, Hypalon, EPDM, Neoprene, NBR, Wear-Resistant EPDM, Viton, Silicon, Heat-Resistant EPDM, WhiteNBR, WhiteEPDM, EPDM, PTFE
Coating: Fusion bonded epoxy coated
Connection type: Flanged type, Push-on type, Mechanical Joint type, Plain ends type
Sealing: Soft sealing or metal-to-metal seat, Flexible graphite
Operation: Manual, Pheunatic, Electric, Hydraulic and Pnewmatic-Hydraul
Appropriate medium: Air, water, sewage, steam, coal gas, oil
Packaging: Export polywood cases, or as per customers' requirements
Delivery Time: 25 days after order conformed
Payment: By T/T or L/C
Application: Fresh water, sewage, sea water, air, vapor, food, medicine, oils. Acids, alkalis, salt etc.