High Pressure Water Pump Diaphragm Accumulator Membrane Replacement For AR30 AR40

Pump and Accumulator Diaphragm Membrane Selection

Diaphragm membranes are selected by the equipment model, mounting profile and operating fluid. NBR or FKM compounds require review against the actual chemical formulation, temperature and cyclic duty. For AR40, AR30 or D30 references, confirm the equipment manufacturer, exact part number and diaphragm drawing before ordering; a pump diaphragm and an accumulator membrane must not be assumed interchangeable.

Shanghai Qinuo Industry Co., Ltd, established in 2013 within the Shanghai Free Trade Zone, is a pioneering high-tech enterprise specializing in the integration of research and development, production, and sales. Embracing the ethos of "Quality for Survival, Innovation for Development," we have garnered a stellar reputation domestically and internationally under the esteemed brand names of "Royal Way^®" and "SHQN^®".

Q1. Are you a factory or trading company?
We have two wholly-owned factories in Nantong City, only an hour's drive to Shanghai Pudong Airport or Shanghai Sea port to ensure the quick delivery.

Q2. What's your sample policy ?
We can supply the sample if we have ready parts in stock, but customized parts have to pay the mold fee.

Q3. Can you produce according to the samples or drawings?
Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q4. What's your Delivery time ?
If the good are in stock generally it is 5-7 working days after receiving your payment. About 7-15 working days if we have mold or 21-30 working days without mold. The specific delivery time depends on the items and quantity of your order quantity.

Q5.What's your payment terms?
For sample and small order, 100% T/T or Paypal. For bulk order, 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.

Q6. Why choose to cooperate with you? What's your advantage?
1). Strong point:We have our own factory,so we can quarantee high quality with a reasonable and favorable price

2). We can offer you a good after-sell service, prompt deliver.

3). We can provide various size and colors according to customers' requirements.

4). By long time testing, quality proved to be excellent.

5). Updated product design.

6). Advanced manufacturing process, composite global standards.

7). We win by the high quality and then have a long-term business relationship.

Q7. How do you make our business long-term and good relationship?
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. Our oil and gas parts are diverse and extensive, so if there is no item what you need, we encourage you to send the drawing or samples to us.

Diaphragm Replacement Review: Mounting Bead, Stroke and Fluid Exposure

Provide the equipment maker, model and original diaphragm part number. Confirm outside diameter, clamping bead profile, active membrane thickness, central attachment and any reinforcement from the drawing or sample. The reference codes shown above require matching to the actual equipment specification before a replacement is selected.

For a reciprocating pump, include stroke, cycle rate, inlet and outlet conditions and the pumped fluid. For an accumulator, provide the vessel model, membrane profile and manufacturer operating requirements. Specify temperature, pressure cycles and fluid exposure; a membrane material description alone does not establish the pressure rating of the assembled equipment.

Choose the NBR or FKM compound using the exact fluid, additives and cleaning conditions. For custom production, include dimensional tolerances, reinforcement or insert requirements, and the required flexing and leakage validation. Inspect the clamping and attachment surfaces during replacement and follow the equipment manufacturer installation procedure.