• Hongum Technology (Shanghai) Co., Ltd
    Linda.M
    Since collaborating with Hongum in 2020, their marine-grade rubber diaphragms and industrial shock absorbers have delivered zero-failure performance, ensuring uninterrupted operations for our port cranes, dredger propulsion systems, and LNG carrier equipment.
Contact Person : Sophia Lau
Whatsapp : +8617717306066

Stop / Isolating Valve Rubber Diaphragm NBR NR EPDM FKM CR Pneumatic Cut Off

Place of Origin China
Brand Name Hongum
Certification 3A、CE、SGS approval
Model Number GMA-SM3
Minimum Order Quantity 50 PCS
Price USD 5-150/PCS
Packaging Details PE+carton box
Delivery Time 7~15 working days
Payment Terms Wire Transfers, letters of credit, Western Union, Paypal, T/T, L/C
Supply Ability 5000PCS/Month
Product Details
Name Isolating Valve Rolling Diaphragm, Pneumatic Cut Off Valve Rubber Diaphragm Material NBR NR EPDM FKM CR
Application Isolating Valve, Cut Off Valve Pressure 0.1-1 MPa
Size ID 22-137 Mm Or Custom Model HF-GMA-03 HF-GMA-46 HF-GMA-32 HF-GMA-49 HF-GMA-09 HF-GMA-42 HF-GMA-14 HF-GMA-SM3
Feature Excellent Resistance To High Temperature, Acid And Alkali
Highlight

Stop Valve Rubber Diaphragm

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Isolating Valve Rubber Diaphragm

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Pneumatic EPDM Diaphragm Seal

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Product Description

Stop Valve Isolating Valve NBR NR EPDM FKM CR Pneumatic Cut Off Valve Rubber Diaphragm

 

 

Cut Off Valve Rubber Diaphragm​ Introduction:

 

The rolling diaphragm is shaped like a top hat in the free state. It is made of rubber with silk cloth. The middle hole on the top is used for installing the valve stem. In order to fit, fix and seal, the top and bottom can be equipped with 0 type edge changer, or the bottom surrounding with mounting hole.

 

In the design of some medium and low pressure regulators, in order to solve the problem of unbalanced pressure regulator disc and improve the performance of the regulator, the method of installing a balanced diaphragm is often used. Installing a balancing diaphragm increases the differential pressure between the inlet and outlet pressures of the regulator. In the voltage regulator industry, it is called a balanced diaphragm in terms of use, and it is called a rolling diaphragm in rubber, instrumentation, machinery and other industries.

 

 

Cut Off Valve Rubber Diaphragm​ Material details:

 

For the present, common materials for rolling diaphragm are: natural rubber (NR), nitrile butadiene rubber (NBR), the performance of the two materials can meet the needs of most industrial environments. In special industrial environments (high temperature resistance, acid and alkali resistance) could use EPDM, fluorine rubber (FKM), neoprene rubber (CR) for production, but the cost is relatively high.

 

 

Cut Off Valve Rubber Diaphragm​ Specifications:

 

Rolling Diaphragm Model

Outer diameter(mm)

Inside diameter(mm)

Base diameter(mm) Height(mm) Thickness(mm) Pressure
GMA-20 38 22 17 21 0.6 0.1-1MPa
GMA-201 45 40 33 28 0.7 0.1-1MPa
GMA-202 49 37 26 22 0.7 0.1-1MPa
GMA-21S 61 50 39 29 0.7 0.1-1MPa
GMA-21 63 53 43 33 0.7 0.1-1MPa
GMA-22 65 50 45 51 0.7 0.1-1MPa
GMA-23 80 72 55 35 0.7 0.1-1MPa
GMA-24 94 74 64 45 0.7 0.1-1MPa
GMA-31 96 90 79 90 0.8 0.1-1MPa
GMA-301 98 80 70 34 1.5 0.1-1MPa
GMA-311 120 102 94 60 0.8 0.1-1MPa
GMA-32 140 93.2 83.2 56 1 0.1-1MPa
GMA-33 184 167 155 80 1 0.1-1MPa
GMA-34 216 170 142 40 1.1 0.1-1MPa
GMA-SMI 118 108 100 72 0.9 0.1-1MPa
GMA-SM2 95 87 80 90 0.9 0.1-1MPa
GMA-ST 155 137 110 128 0.8 0.1-1MPa

 

 

Our service:

 

1. Packaging is neutral packing or customized packing.

2. We will reply you within 24 hours.

3. We will also provide you with good after-sales service.

4. OEM or ODM orders are welcomed.

5. Trial orders are acceptable.

6. High quality and factory price.

7. 100% ensured the quality.