U404 Foot Valve
Materials:
Body: Brass
Valve: Brass
Seal : Buna-N / Viton
Features :
Valve closing speed:0.5S
Medium: Gasoline, diesel , and kerosene
Operating Temperature: -30~~+55degree
U404 Series Foot Valves are installed on the bottom of suction tubes in the fuel storage tank to maintain prime in suction system fuel lines.
Double-poppet models provide redundant protection for holding the prime, and are ideal for installations where the valve is not easily accessible.
U404 Series Foot Valves feature precision metal-to-metal sealing arrangements.U404 Series Foot Valves are recommended for use on suction lines where the pressure does not exceed 34 ft of head (approximately 15 psi).
U404 Series Foot Valves are pressured tested to ensure accuracy
Screen protects the valve from debris
100% Factory Tested.
Package:
Net Weight Cross Weight Dimension
32kg/case of 20 35kg/case of 20 30x31.2x18.5cm/case of 20
Important:
The products should be used in compliance with applicable country, province and local Laws and regulations. Products selection should be based on physical Specifications and limitations and compatibility with the environmentand materials to be handled. HONGYANG makes no warranty of fitness for a particular use. All illustrations and Specifications in this literature are based on the latest products information available at the time of publication,HONGYANG reserves the right to make changes at any time in price, materials. Specifications and models and to discontinue models without notice or obligation.
we are committed to create the best workplace, encourage our staffs to put their own personalities into their jobs, and provide them a stage to show themselves.
in mice that rather spookily seems to express
characteristics that are not encoded in the DNA it received from its parents. The gene is called Kit and mice with a
mutant Kit gene have white patches on their tails and feet.
In one experiment, mice with two versions of the gene, a normal a fuel dispenser nd a mutant version, were crossbred. Some of
their fuel dispenser offspring, by chance, inherited two normal versions of the gene. Curiously, most of these offspring had white
spotted tails. In other words, they looked as though they had inherited a mutant version of the Kit gene, even
though their DNA sequence showed that they had not. Somehow, the mice had acquired the genetic information
for white spotted tails.
The explanation, says the team, seems to come from RNA, a molecule whose main role is to act as a template for
translating DNA into the proteins that perform a wide variety of biological functions in the body. Unusual amounts
of RNA were found in the sperm from mice with the mutant Kit gene, leading the group to suspect that RNA was
implicated.
When this RNA was extracted and injected into mice embryos, a white-tailed mutant was created—even though no
genes for the white tail were present. This work shows that the inheritance is mediated by RNA but the precise
mechanism is unclear. The inherited RNA could be i fuel dispenser nterfering with messages sent by the inherited DNA, or it could
be directly modifying inherited DNA.
The work is evidence of a phenomenon called paramutation, in which orders issued by a version of a gene (an
allele, in the jargon) in one generation are remembered in subsequent generations, even if the allele itself has not
been inherited. Paramutation has been seen mostly in plants, but something similar has been suspected in
mammals, including humans. Some studies have shown that the effect can persist across generations, which
means that genes that were not inherited from your great-grandparents could still be exerting an influence today.
Paul Soloway, a molecular geneticist at Cornell Universi
