Products

DESCRIPTION

Basic Info

Measuring Range	Medium-pressure Gauge
Type	General Pressure Gauge
Accuracy	1.6
Display	Pointer
Application	Industrial, Civil
Structure	Spring Pressure Gauge
Connection Type	Radial Direction
Function	Local Indication Type
Installation Structure	Direct Mounting
Features of Measurement Medium	Corrosion Resistant
Indicating Pressure Reference	General Pressure Gauge
Connection Thread	M14*1.5/M20*1.5/as Tailored
Damping Liquid	Heavy Viscous/Low Viscous Silicone/Glycerin
Glass	Common/PC/Tempering Glass
Transport Package	Carton, or as Your Request
Specification	60mm/100mm/150mm
Trademark	HAKIN
Origin	China
Production Capacity	100000set/Year

Product Description

 

Application
Diaphragm pressure gauge is widely used in the process of petroleum, chemical, alkali production, chemical fiber, pharmacy, food, textile industries; suitable for measuring the corrosive, high temperature, high viscosity, easy to crystallization, easy to solidification and solid floating medium pressure, and for some measurement medium which cannot be used directly into the universal pressure gauge and the place where the clean to prevent precipitation pressure detection, diaphragm separator and universal pressure gauge must be used to form a system of diaphragm table.

 

Theory
When measuring the pressure of medium P acts on the diaphragm, diaphragm deformation, compression pressure gauge sealing fluid pressure system, make its forming P - delta P stress, when the diaphragm of the rigid enough hours, the delta P are also small, pressure meter pressure system formed nearby for measuring the pressure of medium.

 

Working theory

Diaphragm pressure gaug's temperature
Diaphragm pressure gaug's temperature is ralted with sealing liquid membrane expansion coefficient stiffness and pressure parts temperature. In the use of temperature deviation 20±5ºC, changing rate of maximum value affected by the temperature is not greater than 0.1%ºC, flexible takes (far) is not greater than 0.1 + 0.025% (L - transmitting pressure conduit length m), appropriate sealing work fluid is chosen according to the use of different environment.

 

Sealing liquid
Sealing liquid choice for reliability and safety, suitable liquid is chosen according to purposes.

Sealing Liquid	Temperature Range	Specific Weight g/cm3	volume coefficient1/ºC	Use
Heavy viscous	-10~200ºC	1.07	0.95×10-3	high temperature
low viscous silicone	-30~100ºC	0.94	1.08×10-3	general use
glycerin solution	-5~100ºC	1.27	0.61×10-3	food use

Corrosion resistance
corrosion resistance is ensured through proper selection and measurement of the medium contact part of the diaphragm, the flange and the sealing gasket materials.Material: OCR17NI12MO2(SUS316L), onel alloy, hartz alloy, ta,f4Flange material: sus304, sus316, Lined with four fluorine.

 

Diaphragm material

corrosion medium	Diaphragm material
	Tin bronze (QSn6.5-0.4)	SUS316	tantalum (Ta)	monel (Ni70Cu30)	Hartz alloy (HC)	teflon(F4)
vitriol (H2SO4)	√	△	O	√	√	√
nitric acid (HNO3)	×	√	O	×	√	√
muriatic acid (HCL)	△	×	O	×	√	√
phosphoric acid (H3PO4)	√	√	O	√	√	√
Acetic acid(CH3COOH)	√	√	O	√	O	√
Caustic soda (NaOH)	△	O	△	O	O	√
Soda ash (Na2CO3)	O	O	O	O	√	√
Baking soda (NaHCO3)	√	O	O	O	O	√
Chlorine(CL2)	dry:√ wet:×	dry:√ wet:×	O	dry:√ wet:×	√	√
Oil and gas(Br2)	dry:△ wet:×	dry:× wet:△	O	dry:O wet:×	O	√
Ammonia(NH3)	×	√	×	×	O	√
Sea(30%NaCL)	√	√	O	O	O	√
Instruction: O-best △-use with condition √-ok X-no use

Choose flange

GB	HG	DIN	JIS	ANSI
National standard	Chemical Standard	Germany Standard	Japan Standard	America Standard

 

The Introduction of Our Company

Established in 1987, Qingdao Hakin Group is now one of the biggest manufacturers of pressure gauge and gas regulator in China, and a specialized producer of pressure thermometer, Pressure transmitter, cutting torch and welding torch.Qingdao Auto-meters is subsidiaries of Qingdao Hakin Group We have a strong network that allows us to design and customize products. We currently produce over 8 varieties, more than 100 series, and about 1, 000 specifications of instruments for various industries including oil exploration, chemical industry, chemical fiber industry, iron and steel industry, metallurgical industry, power generation plants, food industry and scientific research. We supply different kinds of products. High quality and favorable price. We're pleased to get your Inquiry and we will reply you as soon as possible. We stick to the principle of " Quality first, service first, continuous improvement and innovation to meet the customers" For the management and " Zero defect, zero complaints" As the quality objective.

PRODUCTION LINE

PACKING

 

We are sincere in looking for partners to develop and cooperate together in new business opportunities.

Why Choose Us?
1.) We are specialized in pressure gauge for 30 more years. 2.) Strictly quality controlling and inspecting system. 3.) Reasonable and competitive price. 4.) Fast delivery and time service. 5.) Small quantity order is welcome.

FAQ:

Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,we can pack the goods in your branded boxes after getting your authorization letters.Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.Q3. What is your terms of delivery?
A:FOB, CFR, CIF.Q4. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before deliveryQ8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

If you are interested in our products,please send us inquiry,thanks.