- Model NO.: valve
- Connection Form: Thread
- Pressure: Low Pressure
- Sealing Form: Bellows Globe Valve
- Standard: JIS
- Trademark: trust
- Origin: China
- Material: Cast Steel
- Structure: Tubular
- Function: Ddcv Double Lobe, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
- Flow Direction: Reversing
- Application: Industrial Usage, Water Industrial Usage
- Specification: CCS, ABS, GL, NK, BV, LR, DNV, RINA
- HS Code: 8481804090
 Marine air spring check valve 6 inch
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Product Description
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Petroleum, chemical industry, pharmacy, fertilizer, power industry etc.
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Advantage
1.GB lift check valve is self-sealing valve. The disc can be acted by the flow which can protect against the media flow back.
2.The disc with spring can keep the valve work in any direction.
3.Reasonable structure, reliable sealing, excellent performance and attractive appearance make a TKFM valve.Â
 Material list(CN standard):
NO. |
Part Name | Carbon Steel Series | Stainless Steel Series | Alloy Steel Series | Low-temperature Steel Series | |||||||
1 | Body | WCB | CF8 | WC6 | LCB | |||||||
2 | DISC | WCB | CF8 | WC6 | LCB | |||||||
3 | Washer |  Flexible graphite+ss304 |  Flexible graphite+ss304 |  Flexible graphite+ss304 |  Flexible graphite+ss304 | |||||||
4 | Bonnet | WCB | CF8 | WC6 | LCB | |||||||
5 | Studs | 35CrMoA | 0Cr18Ni9(304) | 35CrMoA | 0Cr18Ni9(304) | |||||||
6 | Nut | 35# | 0Cr18Ni9(304) | 35CrMoA | 0Cr18Ni9(304) | |||||||
7 | Spring | 60Si2Mn | 0Cr18Ni9(304) | 0Cr18Ni9(304) | 0Cr18Ni9(304) |
Technical Specification
Design Standard |
GB/TÂ 12235 | |||||||
Temperature Pressure Rating | GB/T 12224 | |||||||
Structural Length | Factory Standard | |||||||
 Flange Dimensions | GB/T 9113,GB/T 79 | |||||||
Inspection and Test | JB/T 9092,GB/T 13927 | |||||||
nominal pressure | PN1.6 | PN2.5 | PN4.0 | PN6.4 | PN10.0 | PN16.0 | ||
Test Pressure(Mpa) | Body Test | 2.4 | 3.75 | 6.0 | 9.6 | 15.0 | 24.0 | |
High Pressure Seal | 1.76 | 2.75 | 4.4 | 7.04 | 11.0 | 17.6 | ||
Low Pressure Seal | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | ||
Applicable temperature | -196°C~550°C(Differeent temperature use different material) | |||||||
Applicable Medium | water,gas,oil and corrosive media(different media use different material) |
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Main Products:
a) standard marine-purposed butterfly valve
b) blind plate valve
c) lifting stop valve
d) check valve
e) gate valve
f) sea valveÂ
g) valve chest
h) quick close valve
i) storm valve
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Additional  Specification:
with nominal diameters of DN6MM-DN750MM,
Nominal pressure PN0.1Mpa-PN6.4Mpa;
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Certificates:
It has certified by some authoritative ship classification societies such as CCS,GL,BV,DNV,KR,ABS,ISO9000:2000 Quality system;
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Air pipe head is certified by CCS,KR,GL ISO9000:2000 Quality system.
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How to order:
1)  Mounting type:
2)  Flange standard:S-ISO/J-JIS/G-GB etc.
3)  Materials of valve seat: Buna-N rubber?
                                                Fluorinel-containing Rubber?
                                                or tetrafluoro thylene containing rubber?
4)  Materials of Valve body:Cast steel?
                                                Cast Iron?
                                                Ductile cast iron?
                                                Bronze?
                                                Stainless steel?
5)  Nominal diameter:DN(mm)
6)  Nominal pressure PN (mpa)
7)  Operating type:Handle manual?
                                 Worm manual?
                                 Spiral operating manual?
                                 Electrodynamic type?
                                 Pneumatic type?
                                 hydraulic type?
8)  Structure type:Centric Type?
                                Double eccentric type?
Cold drawn steel bar is produced by Hot Rolled Steel Bar or wire rod to get smooth surface, more precision size, higher mechanical properties, which improves machining characteristics. It can also get various sections and sizes. So cold drawn steel bar is a better choice for machining users.
For high carbon steel or alloy steel bars, to avoid the cracks in inner or surface, the bars are usually required to be annealed before cold drawing.
To get different mechanical properties or hardness depending on final usage, the cold drawn bars will also be heat treated such as annealed, normalized or quenched and tempered(Q&T).
For CNC machines usage, to get much more precision sizes or much more better surface roughness for chrome plating, the cold drawn steel bars can also be centerless ground or polished.
We have more advantages on producing cold drawn steel bars:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Wide range of cold drawn steel bar sizes: from 10mm to 150mm
3) Different cold drawing medias powder or oil to get different surface
4) Straightening machines to get better straightness up to 0.5mm/m
5) Grinding and polishing machines to get better roughness upto 0.4um
6) Heat treating furnaces to adjust the mechanical properties
7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
8) Multiple packages to avoid broken packages and anti-rusty
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SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdcolddrawnsteelbar.com