The description of the pressure gauge calibrator piston water dead weight tester:

Pressure gauge calibrator piston water dead weight tester as a basic instrument to transfer pressure value, easy to use, simple structure, light
weight, we developed DK piston DWT, uncertainty can reach to
one in one per million.

water piston Dead-weight tester specification

1,Piston system adopts special tungsten carbide material, with
better hardness and intensity than traditional tungsten carbide
material.
2,The weights adopt non-magnetic stainless steel, fully considering the influence of the uncertainty of the earth's magnetic field on the piston.
3,Prepressurization without pressure cut-off valve, operation
more convenient.
 

4,The whole machine are of stainless steel material, panel after
grinding and cutting, with beautiful appearance.
5,Piston position with a low center of gravity, low altitude, the
piston run more smoothly.
6,Piston pressurized part can be completely without hand
rocker, a hand wheel added to the highest pressure.
7,Internal check valve, soft seal structure, better air tightness.

The components of the pressure gauge calibrator piston water dead weight tester:

1,Pressure export joint 2,Piston system joint 3,Pressure export joint 4,Pressurized cylinder
5,pressure relief valve 6,Pre pressurization system (oil filled) 7,Oil cup cover

Installation:

1.Piston pressure handwheel fixed by 2 pcs hexagonal screws, to delivery convenient client can install it when receive the product.
2.Piston foot has been installed, it can directly put on the table.

Operation steps:

1. Leveling: adjust the piston feet, let the level bubble to the center position.
2. Refueling: Open oil cup cover (see illustration 7), refueling.
3. Fitted pressure gauge: install pressure gauge or other instrument on the joint 3 or joint 1.
4. Place weight: place weights on 2 position.
5. Open the pressure relief valve 5, rotate Pressurized cylinder
4. to the outermost end.
6. Close the pressure relief valve.
7. Add Pressure: with Pre pressurization system 6, gently press a few times, feeling slightly resistance is ok.
8. Using pressure lever 4 to the piston system rises, rising to the piston system (after rising need rotary piston system, so that the piston system always keeps spinning).
9. Below Piston system 2 has aluminum ruler, the equilibrium position is between upline and downline.

Maintenance:

1. The piston DWT is free maintenance product, can replace the matched seal ring when with breakdown and leakage.
2. The medium must be clean.
3. If the piston rotation time is shortened, can clean the piston system and clear impurities.
4. The piston structure is very simple, but very durable, can remove with common use tools.

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FAQ

Q:How long will you reply me?

A:We will contact you as soon as possible but within 12 hours

Q: Can I get some samples?

A: Yes, Sample order is available for quality check and market test. But you have to pay the express cost.

Q: How soon can you arrange your production?

A: Once getting your product confirmation and receiving the prepayment, the production will be started immediately.

Q: What's delivery time?

A: It usually takes about 3-5 working days for small order and 10-15 days for big order.

Q:How do you control your quality ?

A: Three inspection steps(of original, production, and finished goods) + good warranty service(1 year free to change a new one without any human damage factors).

Q: What certificates do you have ?

A:ISO9000, CE, Explosion-proof certification, RoHs ready. And before the delievry of goods, quality and safety inspection certification issued by third parts also can be offered.

Q:Could I visit your factory?

A:Very welcome! Fly to Xian Yang air port. It was a big pleasure for us.

Q: What's your warranty terms?

A: We offer 12 months warranty time.

Q:can you provide OEM & Customized service?

A:Yes, OEM and ODM are both available, we have the professional R&D dept which can provide professional solutions for you.